Reflection: Connection to Prior Knowledge Modeling Addition - Opposites Attract, You Know?! - Section 2: Explore


The highlight of this lesson was the first activity, the front of the notes sheet.  Students raced in tables to list as many pairs of opposites as they could, which seemed very "unmath" to them at the time.  Then, they acted out little scenarios, still they felt the lesson was very "unmath."  Finally, I asked them to summarize for me what they thought opposites would do to one another - and in choral response they shouted cancel each other out.  Therefore, we were able to easily move into the diagrams with the colored circles - there was no confusion as to why we were able to just cross out black and white circles.  This activity was a really good lead in to the lesson.

  Link to Real World Reflection
  Connection to Prior Knowledge: Link to Real World Reflection
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Modeling Addition - Opposites Attract, You Know?!

Unit 4: Operations with Rational Numbers
Lesson 2 of 23

Objective: Students will be able to model addition using chips and a number line.

Big Idea: Do opposites really attract? Read more to find out…

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