This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important aspects of the task and its potential use.

This parent guide supports parents in helping their child at home with the 3rd grade Math content.

This resource accompanies our Rethink 3rd Grade Math Course. It includes ideas for use, ways to support exceptional children, ways to extend learning, digital resources and tools, tips for supporting English Language Learners and students with visual and hearing impairments. There are also ideas for offline learning.

The Common Core State Standards (CCSS) videos are designed to support states, schools, and teachers in the implementation of selected math standards. Each video is an audiovisual resource that focuses on one or more specific standards through examples and illustrations geared to enhancing understanding. The intent of each content-focused video is to clarify the meaning of the individual standard rather than to be a guide on how to teach each standard, although the examples can be adapted for instructional use.

This short video and interactive assessment activity is designed to teach fourth graders about adding or subtracting lengths in one step (english units).

This short video and interactive assessment activity is designed to teach fourth graders about adding unit lengths in one step (english units).

This short video and interactive assessment activity is designed to teach fourth graders about addition of capacities - word problems.

This short video and interactive assessment activity is designed to teach fifth graders about addition of compound unit capacities - word problems.

This short video and interactive assessment activity is designed to teach third graders about addition of sequential capacities - word problems.

This short video and interactive assessment activity is designed to teach second graders about capacity comparison problems with illustrations - word problems.

This short video and interactive assessment activity is designed to teach third graders an overview of capacity IIi (metric units).

This short video and interactive assessment activity is designed to teach second graders about capacity problems with illustrations - word problems.

Student groups compete to design a process that removes the most iron from fortified cereal. Students experiment with different materials using what they know about iron, magnets and forces to design the best process for removing iron from the cereal samples.

This short video and interactive assessment activity is designed to teach second graders about comparing the capacity by formula in quarts, pints and cups.

This short video and interactive assessment activity is designed to teach second graders about comparing gallons and quarts by pictures.

This short video and interactive assessment activity is designed to teach fifth graders about multiple object lengths (english units).

This short video and interactive assessment activity is designed to teach second graders about comparing gallons, pints, and quarts by formula.

This short video and interactive assessment activity is designed to teach third graders an overview of conversion among units of measure.

This short video and interactive assessment activity is designed to teach second graders about comparing cups and pints by pictures.

This short video and interactive assessment activity is designed to teach third graders about comparing cups and quarts by formula.