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Tuesday, October 20, 2015

10/20 Lessons 4.2.3 and 4.2.4 Unit Rate, Writing Equations

1.  Warm-up:

a)  In order for a graph to represent a proportional relationship, there are 2 requirements.  Name them.

b)  Addressing misconceptions:  Yuna is 4 years older than her sister, Debbie.  The relationship between Yuna's age and Debbie's age is not proportional.  Prove it using either a table or a graph.

c)  Check out your quiz score in PowerSchool


2.  Lessons 4.2.3 (page 207) and 4.2.4  Calculating Unit Rates and Writing Equations
  • Objectives:  
    • I will calculate the unit rate of various proportional relationships
    • I will write equations to represent proportional relationships
  • Mini-lesson:
    • Unit rate/ unit price
    • Proportional relationship general equation:  y = k · x
  • Do problems 46, 48, 49 (Lesson 4.2.3) and 55 through 57 (Lesson 4.2.4) in teams.  Any problems you do not finish are homework.
Homework:  See above