Reflection: Standards Alignment Graphing Exponential Decay Functions - Section 4: Closure


One of the big pushes in the common core is for students to understand numbers in the context of a problem situation.  That is what I was trying to accomplish with this closure while simultaneously assessing students understanding of the day's lesson.  As you can see from the student work, students did a nice job identifying what the "coordinates" mean in the context of this particular problem.  

I actually noticed that students really gravitated to this idea of using a table to understand these problems.  Once they understood what the independent and dependent variable stood for, they realized how valuable the table could be in showing them how the variables changed over time.

  Standards Alignment: Mathematizing a Situation
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Graphing Exponential Decay Functions

Unit 7: Exponential Functions
Lesson 6 of 13

Objective: SWBAT graph an exponential decay function.

Big Idea: This lesson helps to build understanding about percent decrease over time and how it can be modeled using an exponential function.

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