Question

name
read the problem. answer the questions to help understand the problem.
apply math models describe two ways to find the area of the shaded rectangle.
□ = 1 square unit

1. what is area?
2. will your answer be a number?
3. what information does the key to the right of the shaded grid give you?
4. what part of the image will you use to find the area?
5. what is one way to find the area of the shaded rectangle?
6. what is another way to find the area of the shaded rectangle?

Explanation:

Step1: Define area

Area is the amount of space inside a two - dimensional shape.

Step2: Answer nature

Yes, the answer for area will be a number representing the quantity of square units.

Step3: Key information

The key tells that each small square represents 1 square unit.

Step4: Relevant part

We will use the shaded part of the rectangle to find the area.

Step5: First area - finding method

Count the number of small squares in the shaded rectangle. For example, if the shaded rectangle has 3 rows and 4 columns of small squares, we can count them one - by - one: 1, 2, 3, …, 12.

Step6: Second area - finding method

Use the formula for the area of a rectangle $A = l\times w$. If the length $l$ (number of squares in a row) is 4 and the width $w$ (number of rows) is 3, then $A=4\times3 = 12$ square units.

Answer:

1. Area is the amount of space inside a two - dimensional shape.
2. Yes.
3. Each small square represents 1 square unit.
4. The shaded part of the rectangle.
5. Count the number of small squares in the shaded rectangle.
6. Use the formula $A = l\times w$ for the area of a rectangle.