Reflection: Rigor Identifying Integers - Section 3: Digging Deeper into Integers

 

To challenge my students, this year I had them develop a rule for opposites and negative signs.  I presented them with the following problems and asked them to look for a pattern and develop a rule.

- (5) = -5

- (-5) = 5

- (- (-5)) = -5

-(-(-(-5))) = 5

-(-(-(-(-5)))) = -5

My students were able to determine that if there are an odd number of negative signs, then the answer will be negative. If there are an even number of negative signs, then the answer would be positive.

I could see that my students were proud of themselves for being able to quickly solve a problem that initially seemed very difficult.

  Opposites of opposites ...
  Rigor: Opposites of opposites ...
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Identifying Integers

Unit 10: Rational Numbers
Lesson 1 of 9

Objective: SWBAT identify integers.

Big Idea: Students understand the difference between integers and rational numbers.

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