few_shots: 
Example:
Concept/skill: 
Apply and extend previous understandings of multiplication and division and of fractions to multiply and divide rational numbers.

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: 
Yes. This problem involves understanding fractions and division to divide rational numbers, such as 1, -4, 4, and -1. This problem also involves an understanding of multiplication: if p and q are integers, then -(p/q) = (-p)/q = p/(-q).

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_pos_0

7
standard_description: Write, read, and evaluate expressions in which letters stand for numbers.
problem_activity: Task
Malik is using a cookbook to make a recipe, but he can not find his measuring cups! He has, however, found a tablespoon. Inside the back cover of the cookbook, it says that 1 cup = 16 tablespoons.
Explain how he could use the tablespoon to measure out the following ingredients:
2 cups of flour
½ cup sunflower seeds
1¼ cup of oatmeal
Malik also adds the following ingredients. How many cups of each did he add?
28 tablespoons of sugar
6 tablespoons of cocoa powder
Use of the following representations is optional:
[IMG]
| Tablespoons | 16 |   |   |   |   |   |   |
|-------------|----|---|---|---|---|---|---|
|    Cups     | 1  |   |   |   |   |   |   |


aligns: no