Trigonometry Lesson 3 Episode 5 (Teachers)

Repeating Your Reasoning

Download Math Task Link to on-line calculator

The students use their conclusion from the previous episode to figure out how many degrees and gips the person in the Caribbean rotates as they travel 1,000 miles.


Episode Supports

Focus Questions

For use in a classroom, pause the video and ask this question:

[Pause the video at 0:38] Determine how many degrees a person in the Caribbean rotates as they travel 1,000 miles along a circular path as the earth turns. 

Supporting Dialogue

[Pause the video at 1:18] Talk with a partner about Claire’s claim that to find the number of degrees a person rotates, you should divide 360 by 25. What sense do you make of those numbers? What would dividing do? Does this work?