## Reflection: Checks for Understanding Exponential Functions - Section 1: Warm Up and Homework Review

In this lesson, we extended our exponential model into graphs.  I wanted to make sure that my students had a solid understanding of an exponential function in relationship to a scenario as this will aid in their conceptual development of its graph.   I could tell that most students had a decent understanding about what each portion meant.  As you can see in 1 and 3, they can identify what each portions means.  My only concern in looking at this was the 2 in f(x)=(10)2x.  The first student represented this as the original plus its double.  The other student said multiply by 2.  Technically this is correct but I find that students often see this two as 2 new fish rather than 1 old plus 1 new.  This is something I addressed in today’s lesson and will go over as we go into decay functions next.  This student, 2, made me laugh as they associated the scenario to zombies rather than fish.  They obviously didn’t read the problems carefully although their work is mainly correct.

Checks for Understanding: Do They Know The Model?

# Exponential Functions

Unit 8: Exponential and Logarithmic Functions
Lesson 5 of 15

## Big Idea: We will extend the zombie apocalypse scenario to the graphs of exponential functions.

Print Lesson
2 teachers like this lesson
Standards:
Subject(s):
Math, exponential function, Algebra, Algebra 2, Transformations of Functions, master teacher project
66 minutes

### Amelia Jamison

##### Similar Lessons

###### What is Algebra?
Algebra II » Modeling with Algebra
Big Idea: Algebra is built on axioms and definitions and relies on proofs just as much as geometry.
Favorites(35)
Resources(19)
Fort Collins, CO
Environment: Suburban

###### Building Cat Furniture: An Introduction to Linear Programming
12th Grade Math » Matrices and Systems
Big Idea: Use Legos for an interactive introduction to linear programming!
Favorites(9)
Resources(24)
Troy, MI
Environment: Suburban

###### Solving Linear Inequalities
Algebra I » Linear Inequalities
Big Idea: Students will apply their knowledge of multi-step equations to solve linear inequalities.
Favorites(16)
Resources(22)
Washington, DC
Environment: Urban