Teacher resources and professional development across the curriculum

Teacher professional development and classroom resources across the curriculum

Monthly Update sign up
Mailing List signup

title image


This video is currently not available.

Repeated Reasoning: Valentine Exchange

Run Time: 00:04:20

Students work to answer the question: "How many cards would be needed if all 24 students in the class were to exchange cards with each other?" Solving the problem helps them develop algebraic thinking skills.


Content Standard

4.OA Operations and Algebraic Thinking

Practice Standard

8. Look for and express regularity in repeated reasoning


© Annenberg Foundation 2017. All rights reserved. Legal Policy