Teacher resources and professional development across the curriculum

Teacher professional development and classroom resources across the curriculum

Monthly Update sign up
Mailing List signup
Teaching Math Home   Sitemap
Session Home Page
Reasoning and ProofSession 04 Overviewtab atab btab cTab dtab eReference
Part D

Applying Reasoning and Proof
  Introduction | How Many Valentines? | Problem Reflection | Classroom Practice | Reasoning and Proof in Action | Classroom Checklist | Your Journal
view video
view video


Ms. Lilia Olivas introduced her fourth-grade students to the idea of counting how many cards would be exchanged if everyone in a group of 24 gave a card to every other person. This led to a problem very similar to the one you just worked on. In the video segment at left (duration 9:05), you can watch Ms. Olivas's students as they try a variety of methods to figure out this problem. Note in particular the evidence of students using reasoning and justifying their thinking and solutions. Think about how your own students might tackle this task.

Please watch the video excerpt now.

Next  Think about the classroom you observed

    Teaching Math Home | Grades 3-5 | Reasoning and Proof | Site Map | © |  

© Annenberg Foundation 2017. All rights reserved. Legal Policy