Dilation and Scale Factors Activity

The video tutorial guides students through a geometry activity involving dilation of points on paper. The teacher explains how to use a point as the center of dilation and apply scale factors to move other points. Students are encouraged to follow along, using materials like paper, pencil, and a straight edge. The activity includes creating and labeling points, dilating them with different scale factors, and understanding the effects of these transformations. The tutorial concludes with instructions to bring the completed work to school.

What materials are needed for the activity?

• A computer and a printer

• A textbook and a notebook

• A sheet of paper, pencil, and ruler

• A calculator and graph paper

Where should you place the two points on the paper?

• At the top and bottom of the paper

• Anywhere, but not too far apart

• In the center of the paper

• On the left and right edges

What is the center of dilation in this activity?

• Point B

• The midpoint of A and B

• The origin

• Point A

What scale factor is used to dilate point B?

• 2

• 3

• 1

• 1/2

How can you find the new position of B prime without a ruler?

• By drawing a circle

• By using a compass

• By estimating the distance

• By using a straight edge and marking

What is the scale factor used to dilate point C?

• 1

• 2

• 1/2

• 3

Where will point C prime be located after dilation?

• Closer to point A

• Farther from point A

• At the same distance as point C

• At the midpoint of A and C

What should you do if you were just watching the video?

• Rewatch the video

• Do the activity yourself

• Ask a friend for help

• Skip the activity