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READY … SET … MATH !! . read until we begin. . Reminder…. Today is the last entry for your notebooks ! Be sure you go through your notebook assignment sheets and SELF-ASSESS that you have everything! If you can’t find it, then I can’t find it!

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• Today is the last entry for your notebooks! Be sure you go through your notebook assignment sheets and SELF-ASSESS that you have everything!

• If you can’t find it, then I can’t find it!

• Highlight the titles of your homework to make it easier to find.

• Do you have your name, date, ACE #s on everything?

• #. Date Brief Description_________________

• 1. 10-3 S&S Problem 2.1 day 1/ ACE (1 a-f)

• 10-4 S&S Problem 2.1 day 2/ ACE (14-15)

• 10-5 S&S Problem 2.2 ACE 3, 16, 17

• 10-6 S&S Problem 2.3 ACE 5,6

• 10-11 S&S Problem 3.1 ACE 1-3, 22-25

• 10-12 S&S Problem 3.2 ACE 4-6, 26-31

• 10-13 S&S Problem 3.3 ACE 9-14, 38-41

• 10-18 S&S Problem 4.1 ACE 1, 2,15-20

BIG IDEA: Similarity and Ratios

Book p. 58 You need: calculator

Lab sheet 4.1

• How do you think this technique produced these variations of the original shape?

• If we think of these images as we did the Wumps, which ones would be in the same family?

• How would you know they were in the same family?

• Are these similar figures?

• These figures don’t have straight sides like the Wumps did. What can we measure to check for similarity?

• A comparison of two quantities by division

• Examples…

• Length to width

• Cost per ounce

• Height to weight

• Can YOU think of more?

What do we do today? girl. The

• Today, you will find ratios of SHORT SIDE to LONG SIDE for each rectangle.

• Then you will compare the information that the ratios and the scale factors give about similar figures.

TIME TO GET TO WORK! girl. The

• Work with a partner to complete Problem 4.1 using your lab sheet

Ratio A = 3/5 girl. The

Ratio B = 3/5

Ratio C = 3/5

Ratio D = 3/10

Equal Ratios mean similar figures. girl. The

Non-equal ratios

mean that the figures are not similar.

All ratios are equal. scale factor

Similar parallelograms are F & G.

For parallelograms to be similar, the ratios

AND the corresponding angles must be the same.

C. No. The ratios AND the corresponding scale factor

angles must be the same.

• #. Date Brief Description_________________

• 1. 10-3 S&S Problem 2.1 day 1/ ACE (1 a-f)

• 10-4 S&S Problem 2.1 day 2/ ACE (14-15)

• 10-5 S&S Problem 2.2 ACE 3, 16, 17

• 10-6 S&S Problem 2.3 ACE 5,6

• 10-11 S&S Problem 3.1 ACE 1-3, 22-25

• 10-12 S&S Problem 3.2 ACE 4-6, 26-31

• 10-13 S&S Problem 3.3 ACE 9-14, 38-41

• 10-18 S&S Problem 4.1 ACE 1, 15-25