1. Team warm-up:
Put 10 negative (-) tiles in the middle of your table.
Find at least 4 sequences of steps (adding or removing any number of + and - tiles) that result in a collection of tiles that equal -4.
Represent each of these sequences with an expression.
Focus questions:
a) Are any of your expressions more efficient than the others? Efficient means that it requires less steps, or less work.
b) How many different expressions can you create that accomplish this task in only one step?
2. Lesson 3.2.2 Connecting Subtraction with Addition
4. Announcements:
Put 10 negative (-) tiles in the middle of your table.
Find at least 4 sequences of steps (adding or removing any number of + and - tiles) that result in a collection of tiles that equal -4.
Represent each of these sequences with an expression.
Focus questions:
a) Are any of your expressions more efficient than the others? Efficient means that it requires less steps, or less work.
b) How many different expressions can you create that accomplish this task in only one step?
2. Lesson 3.2.2 Connecting Subtraction with Addition
- Objective: I will rewrite subtraction problems as addition
- Problems 40 through 43 (page 145) in teams.
- Use Team Roles script! Remember your team handshakes?
- Place a check mark on the side whiteboard when your team finishes a problem. You must have consensus before placing a check mark and moving on
- Dojo Challenge: Problem 44
3. Closure: Explain how subtraction and addition are related. Use examples with diagrams to justify your response.
4. Announcements:
- Chapter 2 re-test today (at lunch or after school)
- Chapter 3 Homework Help doc is in Google Classroom
- Ms. Rickard is making Homework Help videos! Check them out on the link posted in GC or on Mr. R's website under the eBook and Resources tab
Homework: Lesson 3.2.2 R/P (answers in GC)
