Reflection: Developing a Conceptual Understanding Addition and Subtraction Carnival Day 2 - Section 3: Center Time


After our discussion of 12 (The Number of the Day), I realized that some students were still struggling with the idea of the equal sign being at the beginning of the equation as well as toward the end.  So, I put out a few number scales.  Each scale had an equal sign near the fulcrum.  I told the students they could choose a number and then try to find multiple ways to create the starting number.  Watch the video in this section's resource to see a demonstration of this activity.  

  Developing a Conceptual Understanding: Added Activity
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Addition and Subtraction Carnival Day 2

Unit 2: Working with Numbers, Operations, and Story Problems
Lesson 10 of 11

Objective: SWBAT generate equivalent expressions for a number. SWBAT use numbers and standard notation to record. SWBAT use know strategies to solve story problems.

Big Idea: Why stop a good thing? Students will continue to have the opportunity to challenge their addition and subtraction skills through a variety of activity choices.

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Math, Number Sense and Operations, Operations , addition, subtraction, 1st Grade, story problems, word problems
  65 minutes
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