Exponentials Lesson 7 (Teachers)

Finding the Height at Any Time 

The students build on what they have learned to discover how to find the height of the beanstalk at any time.

Episode 1: Making Sense

Josh and Arobindo critique other students’ reasoning about what the height of the beanstalk should be at Day 2.5. They then use a timeline to create their own argument for what the height should be at that time.

Episode 2: Exploring

The students create several different expressions for the height of the beanstalk at Day 2.5 and justify them using the timeline.

Episode 3: Repeating Your Reasoning

Arobindo and Josh use their timeline to find the height of the beanstalk on Day 11/3.

Episode 4: Repeating Your Reasoning

Josh and Arobindo use their timeline to find the height of the beanstalk on Day 17/28.

Episode 5: Reflecting

The students reflect on how to find the height of the beanstalk at any time. They illustrate their process by finding the height of the beanstalk on Day 1.68.


Mathematics in this Lesson

Targeted Understandings

This lesson can help students:

Common Core Math Standards

Common Core Math Practices