This number challenge is an opportunity to reinforce mental arithmetic and order of operations while developing systematic work habits. Students are asked to use the numbers 4, 6, 6, and 8 (exactly once each) and the four basic operations to find as many ways as they can to represent the number 24. There are over 60 different ways! The Teachers' Notes page includes suggestions for implementation, discussion questions, ideas for support, and a link to a related article, Opening Out. (cataloged separately).

This short video and interactive assessment activity is designed to teach third graders about dividing by 1 digit numbers with illustrations.

This short video and interactive assessment activity is designed to teach third graders about finding the remainder given the total number and number of groups.

This short video and interactive assessment activity is designed to teach third graders about grouping with illustrations II - word problems.

This short video and interactive assessment activity is designed to teach third graders about dividing by 10.

This short video and interactive assessment activity is designed to teach third graders about dividing by 11.

This short video and interactive assessment activity is designed to teach third graders about dividing by 12.

This short video and interactive assessment activity is designed to teach third graders about dividing by 1 digit numbers with remainders.

This short video and interactive assessment activity is designed to teach third graders about dividing by 2.

This short video and interactive assessment activity is designed to teach third graders about dividing by 3.

This short video and interactive assessment activity is designed to teach third graders about dividing by 4.

This short video and interactive assessment activity is designed to teach third graders about dividing by 5.

This short video and interactive assessment activity is designed to teach third graders about dividing by 6.

This short video and interactive assessment activity is designed to teach third graders about dividing by 7.

This short video and interactive assessment activity is designed to teach third graders about dividing by 8.

This short video and interactive assessment activity is designed to teach third graders about dividing by 9.

This short video and interactive assessment activity is designed to teach third graders about division terms.

This short video and interactive assessment activity is designed to teach third graders about dividing by 1 digit numbers to find work.

This short video and interactive assessment activity is designed to teach third graders about relating multiplication and division with illustrations.

This short video and interactive assessment activity is designed to teach third graders about finding the expression not matching a given number.