Exploring Scaled Copies in 7th Grade Mathematics

The video tutorial covers the concept of scaled copies, starting with an introduction using a figure resembling the letter A. It explains how to identify scaled copies by comparing dimensions and symmetry. The tutorial includes a discussion on Tyler's argument about scaling, using the Rose Bowl Stadium as an example to identify scaled copies. It concludes with solving equations related to scaling, providing a comprehensive understanding of the topic.

Which figure is a scaled copy of the original 'A'?

• Figure 4

• Figure 2

• Figure 1

• Figure 3

Tags

CCSS.8.G.A.3

Why is Figure 1 not a scaled copy of the original 'A'?

• It is not symmetrical.

• It is rotated.

• It is not the same color.

• It is three units tall and two units wide.

Tags

CCSS.8.G.A.3

What is the main reason Tyler's reasoning about Figure B being a scaled copy is incorrect?

• Figure B is not the same color.

• Figure B is not half as wide as well as half as tall.

• Figure B is rotated.

• Figure B is not symmetrical.

Tags

CCSS.8.G.A.3

Which picture of the Rose Bowl Stadium is a scaled copy of the original?

• Picture D

• Picture A

• Picture B

• Picture C

Tags

CCSS.4.G.A.3

Why is Picture C not a scaled copy of the original Rose Bowl Stadium picture?

• Its height is much shorter.

• It is not the same color.

• Its width is much wider.

• It is rotated.

What is the correct number to complete the equation: 5 times what number equals 15?

• 2

• 5

• 3

• 4

Tags

CCSS.3.OA.A.4

What is the correct number to complete the equation: 4 times what number equals 32?

• 9

• 8

• 7

• 6

Tags

CCSS.3.OA.A.4

What is the correct number to complete the equation: 6 times what number equals 9?

• 2.5

• 2

• 3

• 1.5

Tags

CCSS.3.OA.B.6

What is the correct number to complete the equation: 12 times what number equals 3?

• 1/2

• 1/3

• 1/5

• 1/4

Tags

CCSS.4.NF.B.4A

CCSS.4.NF.B.4B

Which of the following is a correct simplification of 3/12?

• 1/3

• 1/2

• 1/4

• 1/5