Tuesday, October 13, 2015

10/13 Lesson 2.2.3 Addition of Integers and Rational Numbers

1.  Warm-up:  Of the 3 building blocks we learned yesterday, (zero pair, addition with number line, absolute value) choose one that you feel comfortable explaining.  Prepare a short explanation to share with your classmates.

Announcement:  Ch. 1 retest is tomorrow @ lunch or after school

2.  Lesson 2.2.3  Addition of Integers and Rational Numbers
  • Objective:  I will develop more strategies for solving addition problems (with negative numbers).
    • Problem 56 with your team
    • Game time!  Win-a-row
    • Mini-lesson:  Integer addition using integer tiles
    • Problem 58 with your team
    • Class discussion:  Considering what you know, what strategy would you use to solve -200 + 14?
    • Use a similar strategy for rational number addition in Problem 60
Homework: Lesson 2.2.3 R/P (answers in GC)