Exponentials Lesson 7

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 11/3.

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.