few_shots: 
Example:
Concept/skill: 
Explain why a fraction a/b is equivalent to a fraction (n × a)/(n × b) by using visual fraction models, with attention to how the number and size of the parts differ even though the two fractions themselves are the same size. Use this principle to recognize and generate equivalent fractions.
Grade 4 expectations in this domain are limited to fractions with denominators 2, 3, 4, 5, 6, 8, 10, 12, and 100.

Problem/activity:
Task
Cruz and Erica were both getting ready for soccer.
Cruz ran 1 lap around the school.
Erica ran 3 laps around the playground.
Erica said,
I ran more laps, so I ran farther.
Cruz said,
4 laps around the school is 1 mile, but it takes 12 laps around the playground to go 1 mile. My laps are much longer, so I ran farther.
Who is right? Draw a picture to help you explain your answer.


Answer: 
Yes. This task asks students to compare two fractions that are equal. The students need to explain why the two fractions are equal by drawing a picture, which involves using visual fraction models.

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

shot_info: im_task_000212_pos_0

4
standard_description: Recognize that in a multi-digit whole number, a digit in one place represents ten times what it represents in the place to its right. For example, recognize that 700 ÷ 70 = 10 by applying concepts of place value and division.
Grade 4 expectations in this domain are limited to whole numbers less than or equal to 1,000,000.
problem_activity: Problem 1
Ms. Roll is making a mural using square tiles. She has 96 tiles and wants the mural to be 8 tiles tall.
a.   How many tiles long will Ms. Roll’s mural be?
b.   Write one or more equations to show how you solved this problem.
Problem 2
Ayana starts to draw an area model to solve
$$79\div3$$
, which is shown below.
[IMG]
a.   Why did Ayana make a rectangle with an area of 60 and a length of 20?
b.   How much of the dividend still needs to be divided by 3? How do you know?
c.   Complete the area model by extending the one Ayana started above.
d.   Write the quotient and remainder for
$$79\div3$$
. Where are those values represented in the area model above?
e.   Use multiplication to check your answer.
Problem 3
a.   Solve each of the following word problems. Show or explain your work.
The price of a video game is $52. A video game costs 2 times as much as a jigsaw puzzle. What is the price of the jigsaw puzzle?
Ms. Needham squeezed 85 ounces of orange juice. She wants to pour it into glasses that hold 6 ounces each. How many glasses will Ms. Needham need to hold all the juice?
b.   Did you use an area model to represent either or both problems above? If not, could you have? Why or why not?


aligns: no