Calculating Area with Tiles

The video tutorial teaches how to find the area of polygons using a key to count square tiles. It begins with an introduction to the concept and explains how keys are used in graphs to count votes. Common mistakes in area calculation are discussed, followed by demonstrations of using keys to calculate the area of shapes. The tutorial concludes with a review of key concepts.

What is the main focus of this lesson?

• Understanding the volume of shapes

• Finding the perimeter of polygons

• Calculating the area of polygons using a key

• Learning about different types of polygons

In the graph example, how many votes does each picture represent?

• 15 votes

• 20 votes

• 10 votes

• 5 votes

What is a common mistake when finding the area of a closed shape?

• Counting each square unit by one without checking the key

• Using the wrong formula for area

• Ignoring the shape's perimeter

• Counting the tiles twice

If one square tile equals four square units, how should you count the tiles?

• By 1

• By 8

• By 2

• By 4

What is the area of a shape if you count 12 tiles, each representing four square units?

• 72 square units

• 60 square units

• 48 square units

• 36 square units

When each square tile equals five square units, what is the area of a shape with 20 tiles?

• 80 square units

• 110 square units

• 90 square units

• 100 square units

What should you always check when calculating the area using square tiles?

• The key that indicates the value of each tile

• The color of the tiles

• The size of the tiles

• The shape of the tiles

How does using a key help in calculating the area of a polygon?

• It simplifies the counting process

• It changes the shape of the polygon

• It increases the area

• It decreases the area

What is the area of a rectangle if each tile represents five square units and there are 20 tiles?

• 80 square units

• 100 square units

• 110 square units

• 90 square units

Why is it important to shade in each tile when counting?

• To make the shape look colorful

• To keep track of counted tiles

• To change the value of the tiles

• To increase the area