The purpose of this task is to have students add fractions with unlike denominators and divide a unit fraction by a whole number.

In this challenging instructional task students relate addition and subtraction problems to money and to situations and goals related to saving money.

This word problem may be used for instructional or assessment purposes, depending on where students are in their understanding of addition and how the teacher supports them.

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.

The purpose of this task is to help students see that 4_(9+2) is four times as big as (9+2). Though this task may seem very simple, it provides students and teachers with a very useful visual for interpreting an expression without evaluating it.

This short video and interactive assessment activity is designed to teach third graders about selecting capacity by comparison.

This short video and interactive assessment activity is designed to teach fifth graders about converting capacities using illustrations (english units).

This short video and interactive assessment activity is designed to teach fourth graders about converting capacities using illustrations (english units).

This short video and interactive assessment activity is designed to teach fifth graders about selecting the greatest value.

This short video and interactive assessment activity is designed to teach fourth graders about selecting the incorrect statement.

This short video and interactive assessment activity is designed to teach fourth graders about selecting the numbers from a given set.

The purpose of this task is for students to select 2 numbers from a set that sum to 5 (or any other number).

In this scavenger hunt games students are given the task of finding and identifying real-world shapes in their environment.

In this "word search" style puzzle students practice identifying sequences of shapes.

Students gain experience and practice with three types of word problems using the "Take From" context: result unknown, change unknown, and start unknown.

This short video and interactive assessment activity is designed to teach third graders about shortening multiplication expressions (associative property).

This short video and interactive assessment activity is designed to teach fifth graders about single-unit, multi-step problems - word problems.

In this activity students become familiar with the words, Ňtaller/shorterÓ as they refer to height.

This short video and interactive assessment activity is designed to teach third graders about identifying and naming 3d figures.