Reflection: Discourse and Questioning Animal Weights & Bar Diagrams - Section 3: Student Practice

 

Overall, this was a very successful lesson. Most students were able to solve all six problems with their partners. Here are a few examples of proficient students:

 

 

 

 

While students were solving problems with their peers, it was so important to encourage mathematical discourse between partner and to be available to provide questioning/discourse with the teacher. Here are a few examples of simple computation mistakes that are often found by the students themselves through discourse: 

 

  • Adding instead of Subtracting.jpg: With students such as this, a simple question (such as: Can you explain the problem to me again?) can help her realize the correct operation.

 

  • Struggled with Subtraction Facts.mov: With this student in particular, I simply said: Well, let's turn it around, what is 9,000 + 4,000? The student said, "13,000... Oh... now I get it." At that point she realized her error!

  Discourse and Questioning: Reflection
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Animal Weights & Bar Diagrams

Unit 5: Adding & Subtracting Large Numbers
Lesson 8 of 16

Objective: SWBAT solve and represent multi-digit addition and subtraction word problems.

Big Idea: Students will use a bar diagram model to represent and solve word problems involving animal weights.

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