standard_description: Partition circles and rectangles into two and four equal shares, describe the shares using the words halves, fourths, and quarters, and use the phrases half of, fourth of, and quarter of. Describe the whole as two of, or four of the shares. Understand for these examples that decomposing into more equal shares creates smaller shares.
problem_activity: Problem 1
Show students Graph 21 from
Which One Doesn't Belong: Graphs and Equations
.
Problem 2
Do this Desmos activity,
Sine Transformations
, with students.
Problem 3
Write both a sine and cosine function that model the graph shown below.
[IMG]


aligns: no