Bridges Blog Archive for Grade 4

Since the release of the free Geoboard App, I've used it to represent a variety of visual models. But I especially love its power when it comes to multiplying fractions. While a regular geoboard can be divided into parts to show a fraction, the app takes the visual model a step further with the ability to paint in the part of the fraction that you actually have.

When I saw A Learning Journey's blog entry on "Batty Measurements: A Wingspan Comparison," I immediately thought of Bridges Grade 4, Unit 8, "Wingspans: Measurement & Data Analysis." Although the featured student is younger, Bridges fourth graders would enjoy visiting the blog to see the immense diversity in the wingspans of anothe

Looking for ways to explore relationships between circumference, radius, diameter and area? Check out The Circle Tool from NCTM Illuminations. You’ll notice three buttons that run along the top of the game window: Intro, Investigation and Problems. With the Intro button selected, you’ll notice an icon of a video camera.

An assortment of new and updated Bridges Supplements are available to support grades 3-5. The free pdfs include:

Bridges Supplements - Grade 3

A5 Fractions - Updated
D7 Masses & Volumes - New
E3 Line Plots - New

Don't miss the series of math videos produced by the folks at Math Antics. They write,

For your amusement...Abbot and Costello compute 28 divided by 7. Consider asking students to analyze what happened. What's wrong with the strategies?

Fourth grade Bridges students working on Supplement C3: Circles & Angles may find it hard to forget the terms radius, diameter, and circumference after hearing the book, Sir Cumference and the First Round Table by Cindy Neuschwander.