Measuring Area with Rectangles and Tiles

This video tutorial teaches how to find the area of a rectangle by partitioning it into arrays of same-size squares. It covers using grid paper, tiling strategies, and drawing unit squares to calculate area. The tutorial also highlights common mistakes in tiling and provides a final example to reinforce the concepts.

What is the first step in finding the area of a rectangle using tiles?

• Calculate the length and width of the rectangle.

• Draw a grid on the rectangle.

• Count the number of tiles needed to cover the rectangle.

• Measure the perimeter of the rectangle.

How do you determine the area of a rectangle using grid paper?

• By measuring the perimeter.

• By measuring the length of the longest side.

• By drawing diagonal lines across the rectangle.

• By counting the number of unit squares inside the rectangle.

What is the area of a rectangle that is 6 cm long and 5 cm wide?

• 30 square cm

• 11 square cm

• 25 square cm

• 15 square cm

When using tiles to measure area, why is it important to avoid overlaps and gaps?

• To save on the number of tiles used.

• To make the rectangle look neat.

• To ensure the tiles are colorful.

• To get an accurate measurement of the area.

What is the area of a rectangle with 5 rows of 4 unit squares each?

• 15 square units

• 20 square units

• 10 square units

• 25 square units

How can you find the area of a rectangle by drawing unit squares?

• By drawing equal rows and columns of unit squares.

• By drawing diagonal lines across the rectangle.

• By measuring the perimeter of the rectangle.

• By calculating the length of the longest side.

What is the area of a rectangle that is 5 units wide and 3 units long?

• 20 square units

• 15 square units

• 10 square units

• 8 square units

What common mistake can lead to an incorrect area measurement when using tiles?

• Having overlaps or gaps between tiles.

• Not measuring the perimeter first.

• Using too many tiles.

• Using tiles of different colors.

What is the area of a kitchen floor that is 4 feet long and 7 feet wide?

• 11 square feet

• 28 square feet

• 21 square feet

• 35 square feet

What should you ensure when arranging tiles to measure area?

• Tiles should be of different sizes.

• Tiles should touch each other without overlaps or gaps.

• Tiles should be colorful.

• Tiles should be placed randomly.