11/5 Lesson 3.2.1 Subtracting Integers

1.  Warm-up:

• Period 1:  Turn to classwork, add title (Lesson 3.2.1), make a collection of 8 negative tiles and 7 positive tiles.  What integer does this represent?

• Period 2:  Turn to classwork, add title (Lesson 3.2.1), wait for Mr. R's instructions

2.  Lesson 3.2.1 Subtracting Integers

• Objective:  I will develop strategies for subtracting integers
• Focus Question:  "When does subtracting make the result larger?"
• Do Problem 26 in teams using the Team Roles Script
• Finished early? Try Additional Challenge #32

3.  Closure:  With your team, answer the following questions.  Make sure that everyone shares their ideas, and that you agree on a team answer.

• How can we remove negative tiles when the collection only has positive tiles?
• When does subtracting make the result larger?

Homework:  3.2.1 R/P due Monday

                   Chapter 2 rework due Monday, re-test on Tuesday