Teacher resources and professional development across the curriculum

Teacher professional development and classroom resources across the curriculum

Monthly Update sign up
Mailing List signup
Search
MENU
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

 
 

In the previous sections, you studied several aspects of reasoning and proof, looked at ways to encourage students to develop their ability to make conjectures and to justify and prove their ideas, and considered aspects of reasoning and proof in an upper elementary classroom.


Now that you are familiar with the Standard and some of its aspects, we'd like you to apply it. An upper elementary teacher, Ms. Lilia Olivas, asked her fourth-grade students to figure out how many Valentines would be needed if all 24 of the students gave cards to one another. The students used a variety of problem-solving strategies, such as collecting data for a simpler problem through enactment, making a diagram or a table of total cards for various numbers of students, and making an organized list of exchanges.


Your task is to think about how reasoning and proof come into play? First, consider Ms. Olivas's problem as well as an extension of the problem involving a general case. Consider the reasoning or proof aspects of the problem and of the sample solutions in the following activity. Spend this time applying and reflecting on what you've learned so far about reasoning and proof.

Next  Consider a problem

    Teaching Math Home | Grades 3-5 | Reasoning and Proof | Site Map | © |  
   
Home | Video Catalog | About Us | Search | Contact Us | Site Map |
  • Follow The Annenberg Learner on Facebook


© Annenberg Foundation 2013. All rights reserved. Privacy Policy.