few_shots: 
Example:
Concept/skill: 
Apply and extend previous understandings of multiplication to multiply a fraction or whole number by a fraction.

Problem/activity:
For each pair of numbers, determine if the values are equivalent. Explain your reasoning for each one.
a.
$$-0.25$$
and
$$\frac{1}{-4}$$
b.
$$-\left ( \frac{1}{4} \right )$$
and
$$\frac{-1}{-4}$$
c.
$$\frac{-1}{4}$$
and
$$-\frac{1}{4}$$


Answer: 
No. The expressions shown in this problem do not involve multiplying fractions with other fractions, nor whole numbers with fractions.

Now, determine whether the following problem or activity can enable students to understand the concepts or skills in the provided description.

shot_info: fl_problem_001097_neg_0

7
standard_description: Explain how the unit circle in the coordinate plane enables the extension of trigonometric functions to all real numbers, interpreted as radian measures of angles traversed counterclockwise around the unit circle.
problem_activity: Task
Pia was having a party. She put 10 stickers in each party bag.
On the first day she made 10 bags. How many stickers were in her 10 bags all together?
On the second day she made 3 more bags with ten stickers in each one. How many stickers total were in her 10 bags plus 3 more bags?
On the third day she made 7 more bags with ten stickers in each one. How many stickers total are in her 20 bags of ten?
On the fourth day, she made another 10 bags with ten stickers in each one. How many stickers are in her 30 bags of ten?
After one week, she had made a total of 50 bags with ten stickers in each one. How many stickers total are in her 50 bags of ten?


aligns: no