This video tutorial for third-graders, led by Mr. Hector, focuses on understanding and calculating the area and perimeter of rectangles. It begins with an introduction to the concepts and objectives, followed by detailed methods to find the area of rectangles using multiplication. The tutorial includes practice problems and word problems to reinforce learning, encouraging students to work independently and verify their answers. The lesson emphasizes the importance of understanding multiplication facts and applying them to solve real-world problems involving area and perimeter.

What mathematical operation is essential for finding the area of a rectangle?

• Division

• Multiplication

• Subtraction

• Addition

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

If a rectangle is split into two parts with lengths 3 and 7, and a width of 6, what is the total area?

• 42 square units

• 21 square units

• 60 square units

• 18 square units

Tags

CCSS.6.G.A.1

How do you calculate the perimeter of a rectangle?

• Divide the total area by one of the sides

• Add all sides together

• Subtract the lengths from the widths

• Multiply length by width

Tags

CCSS.4.MD.A.3

What is the perimeter of a rectangle with sides measuring 12 cm and 7 cm?

• 24 cm

• 38 cm

• 19 cm

• 34 cm

Tags

CCSS.4.MD.A.3

If a rectangle's area is 56 square units and one side is 7 units, what is the length of the other side?

• 9 units

• 8 units

• 7 units

• 6 units

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

For a rectangle divided into a 3x3 and a 3x5 section, what is the total length?

• 9 units

• 6 units

• 8 units

• 5 units

Tags

CCSS.4.MD.A.3

How many rows of tiles are needed if each row has 7 tiles and there are 42 tiles in total?

• 7 rows

• 5 rows

• 8 rows

• 6 rows

Tags

CCSS.3.OA.A.3

What is the unknown side length of a rectangle with an area of 36 square cm and one side of 4 cm?

• 6 cm

• 10 cm

• 9 cm

• 8 cm

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

If a mural is 3 yards long and covers 15 square yards, how wide is the mural?

• 3 yards

• 4 yards

• 5 yards

• 6 yards

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

What is the perimeter of a rectangle with sides 4 cm and 9 cm?

• 13 cm

• 18 cm

• 26 cm

• 22 cm

Tags

CCSS.4.MD.A.3