# Number Corner Resource & Tech Links – Grade 4

Go to: Oct, Nov, Dec, Jan, Feb, Mar, Apr, May/Jun, (Go to Bridges Units)

## September

Link |
Session |
Type |
Math Topic |
Notes |

XtraMath - free, web-based, math fact fluency program. |
Sept-June |
Program | Fact Fluency | Program includes addition, subtraction, multiplication, and division. Student accounts can be accessed from computers at home or school. Progress reports available. Could be used with Support Activities. |

Egyptian Calculator - enter a number of 1-7 digits to view in Egyptian Numeration System. | Calendar Grid | Activity | Place Value | Wait to introduce until after students discover the origin of the Calendar Grid symbols. |

Old Egyptian Math Cats Fractions - learn about adding fractions as you build fractions as they did in Ancient Egypt. | Calendar Grid | Activity | Fractions | Challenging extension to this month's calendar grid in which students must add unlike fractions to equal a given fraction. Fascinating. |

Egyptian Numerals & Calculation - the lower portion of this Let's Play Math blog entry contains a series of links to history, stories, and puzzles using Egyption numeration. |
Calendar Grid | Activity | Egyptian Numeration | |

Build a Shed Game - build a shed by converting between mm, cm, and meters. Build in 3 stages with 5 questions each. | Calendar Collector | Activity | Metric System | Nice way to explore unit conversions within the metric system. |

## October

Link |
Session |
Type |
Math Topic |
Notes |

The Best of Times - covers strategies for basic multiplication. | Computational Fluency | Book | Multiplication Strategies | Poems and strategies from this book are used during Computational Fluency. |

Mathwire's Measurement Man - students build a visual representation of the relationship between cups, pints, quarts, and gallons. | Calendar Collector | Activity | Measurement - Capacity | Mathwire is an excellent source of standards-based math activities that could be used as extensions. |

## November

Link |
Session |
Type |
Math Topic |
Notes |

The Best of Times - covers strategies for basic multiplication. | Computational Fluency | Book | Multiplication Strategies | Poems and strategies from this book are used during Computational Fluency. |

Flip-n-Slide - players build a transformation--a series of slides, turns, and flips--that will allow them to capture the most insects. | Calendar Grid | Game | Geometry - Transformations | Use "guest pass" to enter game list & play against the computer. Bridges Blog review. Challenging. |

Geometry Transformations - cartoon host invites players to move shapes in sequence of steps intended to review translation, rotation, and reflection. | Calendar Grid | Activity | Geometry - Transformations | |

TranStar - reflect, rotate, and translate in order to move a shape through outer space. | Calendar Grid | Game | Geometry - Transformations | Bridges Blog review. Challenging. |

Reflections with Kat - a 7th grader gives a brief tutorial on how to make a reflection on a coordinate grid. | Calendar Grid | Video | Geometry - Transformations | Bridges Blog review. |

Transformation Handprints - students make handprint posters to demonstrate rotation, reflection, and translation. | Calendar Grid | Activity | Geometry - Transformations | Contribution from a teacher. |

## December

Link |
Session |
Type |
Math Topic |
Notes |

The Best of Times - covers strategies for basic multiplication. | Computational Fluency | Book | Multiplication Strategies | Poems and strategies from this book are used during Computational Fluency. |

Glowla's Estimation Contraption - round numbers to estimate faster in this Cyberchase activity. | Number Line & Problem Solving | Game | Estimation - Rounding | |

Great Estimations - colorful photos depict strategies for estimating a variety of objects. | Number Line & Problem Solving | Book | Estimation | Also see the book Greater Estimations for more strategies. |

Estimator Four - in this two player "Connect 4" game, earn pieces by correctly answering estimation questions. | Number Line & Problem Solving | Game | Estimation | Students need instructional support to get started. Choose from levels of difficulty, time limit, and different types of problems: addition, multiplication, and percentage. Great for practice with estimating multi-digit multiplication. Also try Estimator Quiz. |

## January

Link |
Session |
Type |
Math Topic |
Notes |

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

Elapsed Time - given a starting and ending time, determine elapsed time. 3 levels of difficulty. | Calendar Grid | Game | Elapsed Time | Also try Elapsed Time Two in which players are given the starting time and the elapsed time and asked to find the end time. |

## February

Link |
Session |
Type |
Math Topic |
Notes |

Stop That Creature - stop clones in this Cyberchase game by finding the rule in this function machine. | Calendar Grid | Game | Patterns | Note: some of the beat sound can be turned off. |

Function Machine Activity - looking at the input/output numbers, find the rule in this function machine. | Calendar Grid | Activity | Patterns | This simple online function machine is a natural extension to February's Calendar Grid. |

Find the Function! - choose from activities: What is the Input?, What is the Output?, What is the Function? | Calendar Grid | Activity | Patterns | Emphasize input, output, or function as you explore this game. |

Whole Number Cruncher - player chooses the input number and determines the function by looking for patterns in the outputs. | Calendar Grid | Activity | Patterns | Integers are between 0 and 10. |

Number Cruncher - player chooses the input number and determines the function by looking for patterns in the outputs. | Calendar Grid | Activity | Patterns | Integers include negative numbers. |

Function Machine - drag numbers into a function machine, looking for patterns to complete a table. | Calendar Grid | Game | Patterns | |

Number Patterns - figure out the number pattern to avoid invasion by futuristic robots. | Calendar Grid | Game | Patterns | Wide variety of number patterns to explore: add by, subtract by, multiply & divide by. Nice challenge by BBC Maths. |

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

## March

Link |
Session |
Type |
Math Topic |
Notes |

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

Melvin's Make a Match - match bottles with equivalent fractions in this Cyberchase game. | Calendar Grid | Game | Fractions - Equivalents | Players must match a visual model to a fraction number. |

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

## April

Link |
Session |
Type |
Math Topic |
Notes |

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

## May

Link |
Session |
Type |
Math Topic |
Notes |

Number Factory - add, subtract, multiply, and/or divide a set of four numbers to come as close as possible to a target number. | Computational Fluency | Game | Mental Math Strategies | Students need instructional support to get started; read Background Information. |

Make 24 - use four numbers and all operations to make 24. | Computational Fluency | Game | Mental Math Strategies | |

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

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

The Jeweller of Memphis - collect materials for making jewelry in Ancient Egypt by searching a map with coordinate grids. | Calendar Grid | Game | Coordinate Grid | Short tutorial at the bottom of the page gives map reading instructions. |