Scale Factors and Scaled Copies

Mrs. Himano introduces the lesson for math classes, covering homework assignments for different periods. The lesson focuses on making scaled copies, with specific goals outlined for understanding operations and drawing scaled copies using given scale factors. Exercises include comparing values through multiplication and drawing scaled copies with scale factors of three and a half. Students are encouraged to use digital tools and check their work with calculators. Office hours are available for further questions.

What pages are assigned for homework for periods 1, 3, and 5?

• Pages 37 and 38

• Pages 39 and 40

• Pages 35 and 36

• Pages 33 and 34

What is one of the goals for today's lesson?

• To solve quadratic equations

• To memorize multiplication tables

• To learn how to draw a scaled copy using a given scale factor

• To understand how to add fractions

Which operation is used to create a scaled copy of a figure?

• Division

• Addition

• Subtraction

• Multiplication

If 25 is multiplied by 8.5, is the result more or less than 205?

• Cannot be determined

• Less than 205

• Exactly 205

• More than 205

What is the scale factor used to draw a scaled copy of figure A?

• 2

• 3

• 5

• 4

When drawing a scaled copy of figure B, what is the new length of a side originally measuring 2 units?

• 7 units

• 6 units

• 5 units

• 4 units

What is the scale factor used to draw a scaled copy of figure C?

• 1/3

• 1/4

• 1/2

• 1

How do you calculate the new length of a side when using a scale factor of 1/2?

• Multiply the original length by 1/2

• Divide the original length by 2

• Multiply the original length by 2

• Add 2 to the original length

What is the new length of a side originally measuring 6 units when using a scale factor of 1/2?

• 2 units

• 5 units

• 3 units

• 4 units

If a side of figure D measures 4 units, what will it measure after applying a scale factor of 1/2?

• 3 units

• 2 units

• 4 units

• 1 unit