This task involves fraction multiplication and can be solved with pictures or number lines.

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.

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 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 CyberSquad must divide 35 candies evenly among seven gargoyles in this video segment from Cyberchase.

In this video segment from Cyberchase, Jackie shows Buzz, Delete and Harold how to deal out rounds (or sets) of objects to solve a problem.

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 is an activity for students to work on in pairs practicing simple interest. It involves real online research and presents an open-ended question. This would be most effective after students have had instruction and some practice.

This short video and interactive assessment activity is designed to teach second graders about solving decimal word puzzles.

This short video and interactive assessment activity is designed to teach fifth graders about solving length and distance problems involving time - word problems.

This short video and interactive assessment activity is designed to teach fourth graders about solving length and distance problems involving time - word problems.

This short video and interactive assessment activity is designed to teach third graders about solving multi-step problems involving time.

This short video and interactive assessment activity is designed to teach fourth graders about solving for elapsed time related to rate.

This short video and interactive assessment activity is designed to teach third graders about solving for elapsed time related to rate.