Ruben's Tube

GENERAL GOALS:
Trigonometry.

REQUIRED MATERIALS:
Laptop and student’s text

SPECIFIC OBJECTIVES:
- Identifying the graph type
- Write the function

TIME: 15 min.
LESSON
ACTIVITY
15 min

- Recall the sine/cosine functions

- Ask student to graph sine/cosine functions

Identify the period and amplitude of the parent functions.

10 min

- Play Ruben's Tube Video
What did you see in the video?
How does this relate to the functions you graphed?

20 min

Pause video and begin to generalize a function

What is wave length?
How does it relate to the parent function of a sine wave?
How can we use transformations to model waves?
y=asinbx

15 min

Estimate wavelength and amplitude of the wave created by the fire

Write and graph the function of the wave created by the fire

EXTENSIONS:
Connecting topic:
Basic trig geometry definition + parent sine/cosine functions