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 second graders about expressing multiplication sentences.

This short video and interactive assessment activity is designed to teach second graders about understanding grouping with illustrations.

This short video and interactive assessment activity is designed to teach second graders about multiplication sentences from illustrations (numbers 2, 3, 4, 5, and 10).

This short video and interactive assessment activity is designed to teach second graders about multiplication stories and illustrations i - word problems.

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

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

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

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

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

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

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

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

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

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

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

This short video and interactive assessment activity is designed to teach third graders about choosing the multiples of a given number up to 12.

This short video and interactive assessment activity is designed to teach third graders about completing the number patterns based on the multiplication table.

This short video and interactive assessment activity is designed to teach third graders about filling in the missing number to balance the equation.

This short video and interactive assessment activity is designed to teach third graders about finding the incorrect equations.