# Bridges Units Resource & Tech Links – Grade 3

The following resources extend beyond the current Bridges program and complement specific Bridges Units. These resources may be used to provide students additional challenge or support or teachers may decide to share some of them with families so students can review content at home.

Sessions on the matrix include reference to the CCSS Supplement Sets listed in the order recommended by the CCSS Pacing Guide.

Go to: Unit 2, Unit 3, Unit 4, Unit 5, Unit 6, Unit 7, Unit 8, (Go to Number Corner)

## Unit 1 – Computation, Algebraic Thinking & Probability

Link |
Session |
Type |
Math Topic |
Notes |

XtraMath - free, web-based, math fact fluency program. | Any - as needed | Program | Fact Fluency | Program includes addition, subtraction, multiplication, and division. Student accounts can be accessed from computers at home or school. Progress reports available. |

Smart Board Files - electronic white board display files contributed by Bridges teachers. | Any - as needed | Smart Board Files | Available for Unit 1 & 2. | |

Math Magician - practice facts. Select from addition, subtraction, multiplication & division. Timed. | Any - as needed | Activity | Fact Fluency | Specify exact facts to practice. Example: practice +3 addition facts, 20 questions in 1 minute. Nice layout. |

Investigating Growing Patterns - Mathwire contains a wide array of growing pattern explorations. | 4, 7 | Activity | Growing Patterns | Mathwire is an excellent source of standards-based math activities that could be used as extensions. |

Dinosaur Dentist - use knowledge of doubles and neighbors to remove the dinosaur's bad tooth. | 5 | Game | Addition - Doubles & Neighbors | |

Robin Hood Archery Doubles - see a number, then click the double on the archery board. Up to 10+10. | 5 | Game | Addition - Doubles | Correct answer results in loud trumpet playing. Consider muting. Try Robin Hood Doubles Beyond 10 for doubles greater than 10+10. |

Bridge Doubles - simple game in which player doubles a number to complete a bridge, allowing a car to drive over. | 5 | Game | Addition - Doubles | Takes player straight through doubling numbers 1-10, then starts again with 1. |

Ann & Addem's Dartboard Game - hit the ring just outside the number on the dartboard that must be doubled to equal the target number. | 5 | Game | Addition - Doubles | In order to grab the dart the player must click precisely on the dart tip. |

Math Lines - The player races to pair numbers that add up to 10. Before your child plays, review the pairs of numbers that add up to 10. | 6 | Game | Addition | Site contains advertising. Fun game. Goes with Work Place 1A & 1C. |

Number Pairs - repair a slide by finding the number pairs that add up to 20. | 6 | Game | Addition | After mastering number pairs to 20, players go on to explore number pairs to 100, followed by number pairs for various target numbers. |

Bonds of Ten - Set a whale free by adding pipe sections with numbers to make ten. | 6 | Game | Addition | Great "make 10" game. |

Make the Sum - demonstration video features the game from Session 6. | 6 | Video | Addition | Students combine cards to make a target sum between 10 and 20. |

Addition & Subtraction Fact Strategy Posters - 8 1/2″ x 11″ posters (pdf) that describe and illustrate strategies such as doubles, neighbors, fast 9’s, take-away 10’s. | 5-20 | Print Resource | Addition & Subtraction | Contribution by a Bridges teacher. |

Falling Sums - A beat-the-clock game in which the player has to decide whether an addition or subtraction combination will be less than or greater than 10. | 5-20 | Game | Addition & Subtraction | Background information. In a more challenging version, the player decides whether an addition or subtraction combination will be less than or greater than 100. This game is great for developing number sense and estimation skills. |

Jet Ski Addition - solve addition problems by choosing correct answer from 3 given choices. Move jet ski along and compete against the computer or other players. | 5-20 | Game | Addition | |

Number Jump - move a ball along a number line to smash flies. Uses - and +. | 5-20 | Game | Addition & Subtraction | |

Sums Stacker - drag values from stack to stack until the sum of each stack equals the target number. | 5-20 | Game | Addition | Choose from values shown in: dice, numbers, money. Try to make as few moves as possible. Choose from solve or race modes. |

Speed Grid Addition - select two numbers from a grid that equal the given sum. Timed. | 5-20 | Game | Addition | More advanced levels: Speed Grid Addition 2 and Speed Grid Addition 3. |

Sum Sense Addition - drag & drop number cards to make an addition number sentence. | 5-20 | Game | Addition | |

Arithmetic Four - two player game in which students place pieces on the board by answering math problems. | 5-20 | Game | Addition, Subtraction, Multiplication, Division | Choose from addition, subtraction, multiplication, division. Like connect 4. |

Number Fact Bingo - choose from 6 bingo games. Print the bingo game cards and use online machine to select the numbers. | 5-20 | Game | Addition, Subtraction, Multiplication, Division | Combines desktop and online resources. Choose from a variety of math strands. |

Connect Sums - Click on values that add up to target sum. Clicked items must be next to each other. | 5-20 | Game | Addition | Values can be shown as dice, numbers, or money. |

Deep Sea Duel - play against an octupus to be the first to collect cards that add up to a specified sum. NCTM. | 5-20 | Game | Addition | Choose how many cards, types of numbers, and level of strategy. |

Speed Grid Subtraction - select two numbers from a grid that equal the given difference. Timed. | 14-20 | Game | Subtraction | More advanced levels: Speed Grid Subtraction 2 and Speed Grid Subtraction 3. |

Sum Sense Subtraction - drag & drop number cards to make a subtraction number sentence. | 14-20 | Game | Subtraction | |

Subtraction Blast The player can subtract either 2 or 3 from a number as many times as he or she wants to. The goal is to get each number to 0 as quickly as possible. | 14-20 | Game | Subtraction | Talk with students about how they can get numbers to 0 quickly. (For example, you can get 10 to 0 by subtracting 2 five times, or you can subtract 2 twice and 3 twice.) Site contains ads. Press M to mute sound. |

Bar Graph Maker - contains a series of activities to make bar graphs. Choose from: Climate Zones, Kings/Queens/Rulers, Planets. TESiboard. | Supplement E1 | Activity | Bar Graphs | Designed for whole group instruction. |

Interactive Grapher - tool allows you to make your own categories and enter data on a tally chart, pictogram or bar graph. (Requires a small annual subscription fee. TESiboard+ activity.) | Supplement E1 | Activity | Bar Graph, Pictogram | Designed for whole group instruction. Could be used to collect data in Activities 1 & 2. |

Create a Graph - choose a type of graph to design. | Supplement E1 | Activity | Graphs | Includes several different types of graphs. Consider using as a teaching tool during whole group instruction. |

## Unit 2 – Place Value Structures & Multi-Digit Computation

Link |
Session |
Type |
Math Topic |
Notes |

Sir Cumference and All the King's Tens - Sir Cumference & Lady Di need to figure out a quick way to count the guests coming to their party. They find the simplest way is to group them into tens, hundreds, and thousands. | All | Book | Place Value | Another great book in the Sir Cumference series by Cindy Neuschwander. |

Shark Numbers - given three numbers, look at the base ten pieces and click on the bubble that shows that number. Shark bites the boat if incorrect. | All | Game | Place Value | Options for numbers up to 29, 59, 99, 999. |

Shark Pool Place Value - look at the base ten pieces and click on the bubble that shows that number. In this game there are many numbers to choose from. | All | Game | Place Value | |

Partitioning Numbers - view a visual model of tens and units and click on the number represented. | All | Activity | Place Value | Easy activity. Good for students needing additional practice. |

Higher & Lower - put 5 cards in order and check your answer. | All | Activity | Place Value | First click on cards to reveal values. Then click "order" to receive sorting framework. Then "check" answer. Choose from categories of numbers to 10, 20, 100, 1000. Includes many other modes, including time. |

Place Value Number Line - place a dot on a number line to represent a given number. | All | Activity | Place Value | Choose from number line with tens, hundreds, thousands, millions, billions, and decimals. Might need to first be used as a teacher-led activity. |

Smart Board Files - electronic white board display files contributed by Bridges teachers. | Any - as needed | Smart Board Files | Available for Unit 1 & 2. | |

Base Blocks - create visual models of base 2, 3, 4, 5, 10. | 1-9 | Activity | Place Value - Bases | Could be used as a visual for whole group instruction. |

Arrow Cards - select 3 cards to show a 3 digit number in expanded notation. Then press a button to see the number. | 14 | Activity | Expanded Notation | Example: select cards 300, 20, 1 and push a button to see 321. Could be used as a teacher demonstration tool. |

Estimate - estimate a whole number on a number line. This valuable teaching tool could be used as a class opener. | 16, 17, 25, All | Activity | Estimation | Choose from a wide variety of numberlines. Students could be taught to use independently but it may be most valuable for whole group practice. |

Great Estimations - colorful photos depict strategies for estimating a variety of objects. Also see the book Greater Estimations for more strategies. | 16, 17, All | Book | Estimation | Estimation is used throughout Bridges. In Unit 2, students consider a variety of estimation strategies. |

Estimatron - estimate groups of objects. | 16, 17, All | Activity | Estimation |
From Bruce Goldstone, author of Great Estimations. |

Glowla's Estimation Contraption - round numbers to estimate faster in this Cyberchase activity. | 16, 17, All | Game | Estimation - Rounding | |

Speed Grid Addition - select two numbers from a grid that equal the given sum. Timed. | 18-19, All | Game | Addition | For multi-digit addition: Speed Grid Addition 2 and Speed Grid Addition 3. |

Ghost Blasters 3 - 2 person game in which players practice adding 2 digit numbers. | 19, All | Game | Addition | First player to ten points wins. Uses mental math unless students have other materials nearby. See more Ghost Blaster games for adding and subtracting other number combinations. |

Mental Maths Fridge Magnet Game - solve a 2 digit addition problem by dragging magnets on a fridge. | 19, All | Game | Addition | Good for mental math practice with adding 2 digit numbers. Choose timed or not timed versions. |

Coin Box - variety of activities to count, collect, exchange, and make change for coins. Option to use visuals similar to money value pieces. From NCTM. | 20-Work Place 2F | Activity | Money | Online version of money value pieces. Many modes. |

Speed Grid Subtraction - select two numbers from a grid that equal the given difference. Timed. | 22, All | Game | Subtraction | More multi-digit subtraction: Speed Grid Subtraction 2 and Speed Grid Subtraction 3. |

Panda Math - learn about subtraction by studying lives of pandas in the San Diego Zoo. | 22, All | Book | Subtraction | Shows models of multi-digit subtraction with base 10 pieces. Currently out-of-print; check libraries. |

Numberline Jump Maker - teacher tool to demonstrate addition or subtraction on a numberline. |
25-Work Place 2H, All |
Activity | Addition & Subtraction | Clearly shows jumps. Toggle the spacing to see longer numberlines. |

Number Line - a demonstration tool. Draw leaps & write number sentences on this number line. |
25-Work Place 2H, All |
Activity | Addition & Subtraction | Says for use on IWB. |

Techno Tortoise - add 2 numbers by moving a turtle along a number line using -1, +1, +5, or +10. |
25-Work Place 2H, All |
Game | Addition | Nice way to show addition strategies on a number line. Site includes a demonstrator tool that could be used by teachers for whole group instruction. In the game mode, 5 correct answers results in a quick non-math, video-like activity. |

Catapult Count On - use a catapult to hit a castle by adding a single digit to a double digit to jump to the next multiple of ten on a number line. |
25-Work Place 2H, All |
Game | Addition | Pull down on catapult to adjust a number added on the number line. Check "hide jumps" to use mental math. See help video for demo. |

Count On Convict - stop prisoners from escaping by doing subtraction on a number line. |
25-Work Place 2H, All |
Game | Subtraction | Players must type in each jump on the number line and then all them all together to find the difference. Students will need teacher support to get started. |

Making Change - find the difference between a price and the amount of money paid using the fewest coins and bills possible. | 27-Work Place 2J | Game | Money |

## Unit 3 – Two- & Three-Dimensional Geomtery

Link |
Session |
Type |
Math Topic |
Notes |

Mummy Math - two children use their knowledge of geometric solids to locate a burial chamber in an Egyptian pyramid. | 2, 13, 14 | Book |
Geometry - 3D Figures |
Covers faces, edges, vertices. |

3D Shifting Shapes - a 3D shape is hidden. Use a tiny window to peer at parts of the shape. Can you guess the shape? | 2, 13, 14 | Activity |
Geometry - 3D Figures |
Includes this vocabulary: cube, cuboid, prism, triangle or square based pyramid, cone, sphere, cylinder. Substitute terms used in Bridges while looking at the shapes. |

Geometric Solids - manipulate & color 3D shapes to explore faces, edges, vertices. From NCTM. | 2, 13, 14 | Activity |
Geometry - 3D Figures |
Students need instructional support to get started. |

Shifting Shapes - a simple 2D shape is hidden on the screen. Use a small window to look at parts of the shape. Can you guess what it is? Try Shifting Shapes Year 1 for additional shapes: hexagon, octagon. | 3, 4, 8, 13 | Activity |
Geometry - 2D Figures |
Shapes are simple: triangle, square, rectangle, circle. Interesting activity. Eye icon shows you the shape. The star and circle icons are windows. Using blue arrows to make your windows bigger or smaller. Challenge kids by using small windows. |

Polygon Sort - sort polygons using a diagram. | 3, 4, 8, 13 | Activity |
Geometry - 2D Figures |
Sort by regular/not regular and quadrilaterals/not quadrilaterals. Especially suited for Session 8's exploration of regular/irregular polygons. |

Concentration - click on 2 windows at a time. Match geometric shape (visual) to its name. | 3, 4, 8, 13 | Game |
Geometry - 2D Figures |
Set to shape mode. 1-2 players. 2 levels of play. Free app also available. |

Grandfather Tang's Story - Grandfather tells granddaughter the story of two fox fairies using tangram pieces. | 3, 4 | Book | Geometry - Tangrams | |

Three Pigs, One Wolf, Seven Magic Shapes - variation on 3 Little Pigs using tangrams. | 3, 4 | Book | Geometry - Tangrams | Hello Math Reader. Quick read. Display illustrations under the document camera while children replicate puzzles at their desks. |

The Warlord's Puzzle - a young peasant boy convinces his poor but wise father to enter a contest to solve the warlord's puzzle, the tangram. | 3, 4 | Book | Geometry - Tangrams | |

Tangram Lesson - activity from NCTM in which students look at transformational geometry in tangrams. | 3, 4 | Activity | Geometry - Tangrams | Students consider flips (reflections), slides (translations), and turns (rotations.) |

Tangram Game - create tangram puzzles in this Cyberchase activity. | 3, 4 | Activity | Geometry - Tangrams | Use "lines on" feature to fill in puzzle. |

Tangram Puzzles - choose from several online tangram puzzles from NCTM. | 3, 4 | Activity | Geometry - Tangrams | |

Geometric Shapes with Tangrams - video tutorial showing how to create tangram pieces. After creating pieces, students are asked to create puzzles on their desks and then create the same puzzle with virtual tangram pieces on the screen. | 3, 4 | Video | Geometry - Tangrams | Using this video, students could create tangrams at home with families. Tutorial ends with tangram game, creating puzzles. In the "bonus activity" students create tangram polygons similar to Work Place 3B. |

Triangle Sort - sort triangles into Venn diagrams. | Supplement C2, Activity 2 | Activity | Classifying Triangles | Activity begins with a tutorial on scalene, isosceles, and equilateral triangles. |

Shapes - sort both triangles and quadrilaterals by characteristics. Located on bottom of index page. | Supplement C2, C4 | Activity |
Triangles, Quadrilaterals |
Challenging follow-up to Triangle Sort in previous entry. |

Snowflake Bentley Website - explore the official site of the real person behind the book, Snowflake Bentley. |
5-6 | Activity | Geometry - Symmetry | View some of Bentley's snowflake images. (Click on individual snowflakes to enlarge.) |

Make-a-Flake - digitally cut snowflakes and immediately view the results. | 5-6 | Activity | Geometry - Symmetry | For additional challenge, students could count lines of symmetry and look for order of rotation. |

Snowflake Patterns - with these fancy templates, students can create intricate snowflake designs. | 5-6 | Activity | Geometry - Symmetry | Consider lines of symmetry and rotational symmetry in the snowflakes. |

Symmetry - players create symmetrical figures and find lines of symmetry in this futuristic mission. | 5-7 | Game | Geometry - Symmetry | |

Lines of Symmetry - count the lines of symmetry in an assortment of shapes. | 5-7 | Activity | Geometry - Symmetry | |

Symmetry Activity - complete a pattern using knowledge of symmetry or create your own symmetrical pattern. | 5-7 | Activity | Geometry - Symmetry | Questions are included, allowing students to reflect on what they know about symmetry. |

Cyberchase Symmetrizer - Use the "symmetrizer" to experiment with Cyberchase character symmetry. | 5-7 | Activity | Geometry - Symmetry | Use the "Grid" to help count lines of symmetry. Use "How?" to try mirror symmetry. |

Reflective Symmetry in Shapes - click on shapes to see lines of symmetry drawn automatically. | 5-7 | Activity | Geometry - Symmetry | |

Symmetry Sort - students sort shapes by 0, 1, 2 lines of reflective symmetry. | 5-7 | Activity | Geometry - Symmetry | |

Line Symmetry - video presentation on line symmetry. | 5-7 | Video | Geometry - Symmetry | Shows line symmetry in real life: nature, architecture, and more. |

Investigating Symmetry in Our Alphabet - click on the letters that have horizontal symmetry, vertical symmetry, or both. | 5-7 | Activity | Geometry - Symmetry | Students may wish to investigate the lines of symmetry in the letters of their own names. |

Symmetry Picture - Complete the painting to create a symmetrical picture. | 5-7 | Activity | Geometry - Symmetry | In the easy version the second half of the picture is traced. In the hard version grid lines must be followed to complete the picture. Site contains ads. |

Angles - conduct a variety of missions using knowledge of angles to control & defeat Roboidz. | 9 | Game | Geometry - Angles | Measure various angles including angles of triangles. Correctly identify angles by: acute, right, obtuse, reflex. |

Hamster Champs - daredevil hamsters must use their knowledge of angles to escape from a hungry cat. | 9 | Book | Geometry - Angles | |

Perimeter Laser Game - form a rectangle with a given perimeter. Requires a small annual subscription fee. TESiboard+ activity. | Supplement C4 | Activity | Perimeters of Quadrilaterals | |

Airlines Builder - in this Cyberchase game, a player must construct 3 different ships with the same perimeter. | Supplement C4, D2 | Game | Perimeter & Area | After the ship is built, the "seats" are filled to show area. After finding all shapes with a perimeter of 8, find shapes with perimeter of 10. |

Area & Perimeter - calculate area or perimeter, choosing from three levels of difficulty. | Supplement C4, D2 | Activity | Perimeter & Area | Provides practice in calculating area & perimeter. |

Shape Explorer - calculate area and perimeter for a given shape. | Supplement C4, D2 | Activity | Perimeter & Area | |

Chairs - this NCTM applet explores how many chairs are needed for different tables in a restaurant. | Supplement C4, D2 | Activity | Perimeter & Area | In explore mode, the chair arrangement is displayed. In guess mode, player must enter the correct number of chairs. |

## Unit 4 – Multiplication & Division Patterns & Concepts

Link |
Session |
Type |
Math Topic |
Notes |

Times Square - players race to get 4 products in a row on the game board. | All | Game | Basic Multiplication | Use "guest pass" to enter game list & play against the computer. |

Factor Dazzle - find all the factors of target numbers set by opponents. | All | Game | Basic Multiplication | Use "guest pass" to enter game list & play against the computer. |

Table Numbers - choose a factor from 2-9, then select one of three numbers that represents a multiple of the chosen factor. | All | Game | Basic Multiplication | Good visuals; good practice. |

Multiplication Grand Prix - up to 4 players compete in this race car game by entering basic facts. Also try a similar game, Tractor Multiplication. | All | Game | Basic Multiplication | Students can race one another or play against the computer. |

Meteor Multiplication - as meteors with multiplication problems approach a star station, fire them down with correct products. | All | Game | Basic Multiplication | |

Multi Bounce - see multiplication fact with array and bounce ball off the product. | All | Game | Basic Multiplication | Watch the red X. Manipulate the disc so that the X is on the product. Takes a little practice to move disc. Fun. |

Fridge Magnet Multiplication Game - practice multiplication problems by selecting the correct fridge magnets. | All | Game | Basic Multiplication | Choose from modes that are timed or not timed. |

Flashcards - choose from a wide variety of multiplication & division problems. | All | Activity | Basic Multiplication & Division | Scroll to lower half of page. |

Sum Sense Multiplication - drag & drop numbers cards to make a multiplication sentence. Also try Sum Sense Division. | All | Game | Basic Multiplication & Division | Ordering cards correctly provides an entirely different way to review basic multiplication and division. |

MathTappers: Multiples - simple, free game designed to help learners make sense of multiplication & division using visual models. | All | Game - iApp | Basic Multiplication & Division | Compatible with iPhone, iPod touch, and iPad. Read more about MathTappers. |

Multiplication & Division Strategy Posters - pdfs illustrate some of the strategies used in Bridges. | All | Print Resource | Multiplication & Division Strategies | Option to post as reference in the classroom. Contribution from a Bridges teacher. |

Properties of Multiplication - Word Resource Cards for zero, identity and distributive properties of multiplication | All | Print Resource | Multiplication | Contribution from a Bridges teacher. |

Drag Race Division - up to 4 players race to answer basic division problems. | All | Game | Basic Division | Students can race one another or play against the computer. |

Demolition Division - destroy oncoming tanks with division problems by blasting with the correct answer. | All | Game | Basic Division | |

Carl's Cookie Capers - figure out how many chocolate chips in all by counting the cookies and multiplying by number of chips on each cookie. | 2, 3, All | Activity | Multiplication | Mute button available for sound. Site contains ads. |

Camel Times Tables - load camel with fruit for a trip. Fruit arrives in multiples on trays. Count fruit on 1 tray, multiply by total trays, and figure the total. | 2, 3, All | Game | Multiplication | Multiple levels available. |

Array Display - teaching tool to demonstrate the array model in multiplication. | 4, All | Activity | Multiplication - Array Model | Create any array up to 10 x 10. |

Multiplication Numberlines - shows a multiplication table with numbers covered. Click on any number to reveal corresponding multiplication problem. | 10, 15, 20 | Activity | Multiplication | Multiplication Table teaching tool. |

Times Tables Grid Game - find a given product in the multiplication table grid. Select the times tables you wish to practice. | 10, 15, 20 | Game | Multiplication | Choose from timer or no timer. |

Splat Squares - suggestion for using an online option to compare multiples on a 0-99 grid. | 18 | Activity | Multiplication | Presents an alternative idea to the overhead grids. |

Venn Diagrams - compare multiples using a Venn Diagram. Could be done as a whole group activity. | 18 | Activity | Multiplication | Choose from Venn Diagrams with 2 intersecting sets with multiples of 2 & 3, 4 & 5, or 6 & 9. Or choose 3 intersecting sets with multiples of 3, 4, and square numbers. |

Number Balance - use this teacher tool to create an expression that students can help to make equal. Located in middle of activity index. | Supplement A1 | Activity | Equal Expressions | This balance tool could be used to form expressions found in A1. Use to introduce, discuss, or extend A1. |

## Unit 5 – Place Value & Computation with Larger Numbers

Link |
Session |
Type |
Math Topic |
Notes |

Earth Day Hooray! - if the kids can manage to collect and recycle 5,000 aluminum cans, they can make enough money to buy flowers for the park. | All | Book | Place Value | Cans are sorted using bags of 10, 100, 1000. Stuart J. Murphy MathStart book. |

Place Value Pirates - read a place value clue (like "3 in the tens place") and click on the pirate standing on the number that contains that clue. | All | Game | Place Value | Site contains ads. |

Place Value Game - type in the value of the underlined digit in a given number. | All | Game | Place Value | Choose from a variety of levels ranging from less than 10,000 to more than 1,000,000. Site contains ads. |

Place Value Mystery Numbers - receive place value clues for each digit in a 7 digit number. Create the number and check the answer. | All | Game | Place Value | Nice activity for numbers to a million. |

Amoeba Addition Game - practice adding 3 digits by splitting numbers. Look for title "Addition by Splitting" game. | All | Activity | Addition | Excellent game. 3 levels. All with increasing levels of difficulty in 3 digit addition. |

Amoeba Subtraction Game - practice subtracting 3 digits by splitting numbers. Look for title "Subtraction by Splitting" game. | All | Activity | Subtraction | Excellent game. 3 levels. All with increasing levels of difficulty in 3 digit addition. |

Number Pyramid - help Molly through the pyramid doors by completing addition and subtraction number sentences with the correct number or symbol. | All | Game | Addition & Subtraction | "Really hard" level uses 3 digit addition and subtraction. |

Addition of Three-Digit Numbers - select numbers between 1 and 999 to add. Numbers are automatically entered into an equation; base ten pieces are created to match. If ten or more pieces are in any column, you must push the "regroup" button to continue solving the problem. | Supplement A3, Activity 1 | Activity | Addition with Regrouping | Optional recording sheet available to print. |

Estimate! - add 3 digit numbers using estimation. | 4 | Game | Estimation - Addition | Background information. Earn more points by estimating quickly and accurately. Excellent extension to Round Ball Hundreds. |

Functions or "Input-Output Rules" - blog entry suggests a challenge extension for The 329th Friend. |
7-8 | Activity | Patterns | |

Airlines Builder - in this Cyberchase game, a player must construct 3 different ships with the same perimeter. | 7-8 | Game | Perimeter | After the ship is built, the "seats" are filled to show area. After finding all shapes with a perimeter of 8, find shapes with perimeter of 10. |

Mostly Postie! - drag package onto scales and enter weight in standard measurement. | 9 - Work Place 5C | Activity | Standard Measurement | |

Number Sense - Cyberchase place value game in which player must create a 3-digit number bigger than Hacker's. | 15 | Game | Place Value | Simpler, 3-digit version of Work Place 5F: Quad Spin & Win. |

Place Value Game - create the largest possible number from the digits given. Only one digit is given at a time, so think carefully before placing a digit. | 15 | Game | Place Value | Game allows you to select: number of digits, largest number of digit used, how many numbers you may discard. Great extension to Work Place 5F Quad Spin & Win. |

## Unit 6 – Money, Fractions & Probability

Link |
Session |
Type |
Math Topic |
Notes |

Making Change - find the difference between a price and the amount of money paid using the fewest coins and bills possible. | 1-4 | Game | Money | Complements Work Place 6A: Make Change. |

Lunch Lady - add up the price of students' lunches before time runs out. | 1-4 | Game | Money | Players must add three lunches at a time, all totaling amounts close to $1. Site contains ads. Background music with game. |

Cash Out - sell as many items as possible before time runs out. Make change for each customer by clicking on correct coins. | 1-4 | Activity | Money | Choose from levels of difficulty. |

Learn to Count Money - count money by clicking & dragging coins & bills into box. | 1-4 | Activity | Money | Becomes progressively more difficult as students master levels. Level 1, count to 99 cents. Level 2, count to $10. Level 3, count to $100. Also choose from beginner (and combinatin of coins) and expert levels (least number of bills & coins.) |

Sums Stacker - drag coins from stack to stack until the sum of each stack equals the target number. | 1-4 | Game | Money | Choose money mode. Try to make as few moves as possible. Choose from solve or race modes. |

Connect Sums - Click on values that add up to target sum. Clicked items must be next to each other. | 1-4 | Game | Money | Select the money mode. |

Coin Combo - click on coins to equal total money value shown. Coins continually fall in columns; when a column fills, game is over. | 1-4 | Game | Money | Levels increase in difficulty, starting with nickels & dimes and small money values and increasing to larger coins and money amounts. Fun. |

Ordering Fractions Game - put fractions in order. | 5, 7, 8, 14, | Game | Fractions - Ordering | |

Fractions Naming - write the fraction demonstrated by the highlighted part of a shape. | 5-15 | Activity | Fractions | Could be used as a teaching tool for whole group instruction. Also see Fractions Parts of a Whole. |

Thirteen Ways of Looking at a Half - find thirteen different ways to show one half by clicking on triangles in a big square. Cyberchase activity. | 5-15 | Game | Fractions | |

Pizza Party - player selects the fraction that shows how much of a pizza is left on the pan. | 5-15 | Game | Fractions | Site includes ads. |

Bamzooki Fractions Basic - divide floor arena to show denominator and fill in divisions to represent numerator. | 5-15 | Game | Fractions | Provides practice in seeing and understanding the concept of numerator and denominator. |

Visual Fractions - online tutorial that models fractions with number lines or circles. | 5-15 | Activity | Fractions | Compare, add, subtract, multiply, and divide fractions. Blog entry information. |

Fraction Number Line - place fractions from 0-2 on a number line. This activity also shows the equivalents in decimals and percentages. | Supplement A5 | Activity | Fractions | |

Fraction Tracks - 2 player game in which students race from 0-1 by moving across a series of tracks marked with different fractions. | Supplement A5 | Game | Fractions | Add, compare, and find equivalent fractions. |

Mathwire's Measurement Man - students build a visual representation of the relationship between cups, pints, quarts, and gallons. | 9, 10 - Work Place 6C | Book | Measurement - Capacity | Mathwire is an excellent source of standards-based math activities that could be used as extensions. |

## Unit 7 – Three-Dimensional Geometry, Multiplication & Data Analysis

Link |
Session |
Type |
Math Topic |
Notes |

Home Run Derby Math - round numbers to estimate and add in order to score points. | Supplement A3, Activity 5 | Game | Rounding to 1000's | Site contains ads. Good additional practice with rounding numbers following Round & Add game in Activity 5. |

Billy Bug & His Quest for Grub - help the bug to locate his food on a coordinate grid. | 1 | Game | Coordinate Grid | Simple game. Good practice with coordinates. |

Bike Route - help this Cyberchase character to run errands using a map and a grid. | 1 | Game | Grid | Very simple map game. Doesn't use coordinates. |

Mummy Math - two children use their knowledge of geometric solids to locate a burial chamber in an Egyptian pyramid. | 3-11 | Book |
Geometry - 3D Figures |
Covers faces, edges, vertices. |

3D Shapes Rap! - rap includes four shapes--sphere, cylinder, cube and cone--with many, many "real world" examples pictured. | 3-11 | Music |
Geometry - 3D Figures |
Catchy review of 3D shape names. |

3D Shapes - futuristic mission in which players use knowledge of 3D shapes to escape Roboidz. | 3-11 | Game |
Geometry - 3D Figures |
Sort 3D objects by faces, edges, vertices. Name various 3D shapes; some terms are different than those used in Bridges. Match 3D shapes to nets. |

Clicko Game - reconstruct 3D structures based on 2D horizontal flat views. Ages 8 & up. 6 levels of difficulty. Recommended as last game after Equilibrio & Architecto but fits in with geoblock lessons. | 3-11 | Activity |
Geometry - 3D Figures |
This is a desktop activity that could be used at home or in school as a challenge extension. Great for choice time. Also see Equilibrio & Architecto . |

Cube Nets - view 24 nets and click on the 11 that can be folded to make a cube net. | 6 | Activity |
Geometry - 3D Figures |
Superb extension for Session 6. Click on Exploration to watch a net virtually fold into a cube. |

Speed Grid Challenge - race against the clock to find factors to match the product. | 12-17 | Game | Basic to Multi-Digit Multiplication | Player sets number of questions and length of game. Includes a few 1 digit by 2 digit problems. |

Ten Times Better - descriptions of different animals highlight the numbers from one to ten and their multiples of ten, such as a sloth having 3 toes while a centipede has 30 feet. | Supplement A7 | Book | Multiply by 10. | Reviews basic multiplying by 10. |

Send in the Trolls - find the troll with the middle height to represent the Cyberchase Beauty Contest. | 18-19 | Activity | Averaging | Work through 3 levels with increasing numbers of trolls. |

CyberOlympics - choose contestants with the fastest practice times to compete. | 18-19 | Game | Data Analysis | Compare contestants' practice times against the practice times of the opposing team to decide who will compete in each event. |

Handling Data Game - several different kinds of data are represented in a variety of activities. Players must use bar charts, interpret information, observe & record. | 18-19 | Game | Data Analysis | Unique game. Wide variety of experiences with data presented. |

Bugs in the System - capture bugs and make a bar graph to count totals. | 18-19 | Game | Data Analysis | As bugs are captured, the "bar graph scaler" must be adjusted. Players then must analyze bar graphs that are set to different scales. |

Bamzooki Median, Mode, Mean & Range - sort the creatures in the Zook lair by using knowledge of median, mode, mean & range. | 19 | Game | Data Analysis | Good review of median, mode, mean & range. |

## Unit 8 – Bridge Design & Construction: Data Collection & Analysis

Link |
Session |
Type |
Math Topic |
Notes |

The Bridge Challenge - short simulation in which students must select the correct bridges for the setting. | All | Activity | Bridge Building | Attempt after students have learned about various types of Bridges. |

Bridges - PBS site highlights famous bridges, bridge designers, and links to other bridge resources. | All | Activity | Bridge Building |
Also tells about a PBS broadcast program, Building Big, hosted by David Macaulay. |

Building Big: Bridges - Host David Macaulay explores bridges throughout history. | All | Video | Bridge Building | "...explore dozens of monumental engineering feats through historic film footage, fascinating photographs, illustrations and dramatic recreations." |

Build a Bridge - similation in which you choose which type of bridge belongs where. | All | Activity | Bridge Building | From NOVA and PBS. |

Twenty-One Elephants and Still Standing - in May 1884, P.T. Barnum led 21 elephants safely across the newly constructed Brooklyn Bridge, proving that it could hold the heaviest of passengers. | All | Book | Bridge Building | Read another version of this historic feat in Twenty-One Elephants. |