Comparing Average Rate of Changes
Algebra 2 20202021
Module 2: Comparing Functions
Lesson 4: Comparing Average Rate of Changes
Essential Questions:
How can functions describe realworld situations, model predictions and solve problems?
Students will be able to: calculate and interpret the average rate of change over a specified interval. 
Standards
HSF.IF.B.6 Calculate and interpret the average rate of change of a function (presented symbolically or as a table) over a specified interval. Estimate the rate of change from a graph.* 
Agenda
● Do Now ● Vocab & Lesson ● Desmos activities ● Homework 
Do Now: Write 5 noticings and wonderings below based on the work you see.


Vocabulary Review:
○ you will always be told the interval (x values), often in interval notation with brackets [ ] ■ example: Calculate the average rate of change over the interval [2,8] ○ You cannot choose any two points you want like you could when you were calculating slope.


Desmos Activities:Please note that desmos activities work best on a computer. This one will work on a tablet as well.
If you did not complete the activity on desmos from lesson 3, start with this one. We were practicing calculating slope/average rate of change for linear equations. Complete up to slide 7 today (the panda problem).
https://student.desmos.com/join/v3mtju
You will now complete a desmos activity about comparing average rates of change, focusing on nonlinear equations.
https://student.desmos.com/activitybuilder/studentgreeting/5f87cbadd7fd510c9439b95a


Homework: Answer all 3 questions in this document. You can insert pictures of your work or you can create your own jamboard and copy the link below in the space for your answer.
If you’re unfamiliar with this notation [0,3] means from x=0 to x=3.

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