10/16/13 Wed

y 10 1) y = __   2)   = __ 68 What are the following measures? Boot-Up 10.16.13 / 6 min. What are the following measures? 1) y = __ 2)   = __ y 10   68

Slope ratio = ____ Slope ratio = ____ Proportion __ = Proportion __ = 4-24

Today’s To-Do List:  4.1.4  4-36  4-39  4-40 Find Problem 4-36

Use a scientific calculator to find a slope ratio. (Tangent ratio.) SWBAT: Use a scientific calculator to find a slope ratio. (Tangent ratio.) Identify rise & run when the  is not oriented as a slope triangle. Today’s Objective: *SWBAT = Student Will Be Able To

Set-up your calculators Mode Float 3 <Enter> Degree <Enter> Clear to return to home screen

1) What is the slope ratio for 32? 5 8 = 0.625 4-36 5 8 = 0.625 2) What is the slope ratio for 58? 8 5 = 1.6

When working with a slope , you want to orient your  so that: 1) The right  is in the lower right corner, & 2) The slope is going up from left to right.

1) When you have a right , what is the sum of the other 2 s? 2) What do you notice about the slope ratios (the fractional forms – not the decimal forms) of 32 & 58?

4-36 The Tangent Ratio

TOA! O T A

4-37

4-36

4-39

4-39 4-40

Find Lesson 4.1.5 Today’s To-Do List: 4-46

4.1.5 4-47 – 4-52

Find Lesson 4.2.1 Today’s To-Do List: 4-53  4-56 4-54  4-57 4-55

4.2.1 4-58 – 4-63

Take good care of your Tools, & they’ll take good care of you… 4-16 Take good care of your Tools, & they’ll take good care of you…

Remember, we can learn this the easy way, or the hard way… Now, what is this letter called?

2) What happens to the slope ratio when the angle is 0°? 90°? 1) What happens to the slope ratio when the angle increases? Decreases? 2) What happens to the slope ratio when the angle is 0°?  90°? 3) When is a slope ratio more than 1?  When is it less than 1? 4-26 8 min.

10/17/13 Thu

10/8/13 Fri

Boot-Up 10.7.13 / 6 min.

What scale factor was used to make the enlargement? Exit Ticket: SWBAT correctly answer the following problem by the end of today’s lesson: This will be collected & graded as classwork. Put on a separate sheet with heading: Name, Date, Exit Slip: Scale Factors. SHOW ALL WORK! If you do not show step-by-step work as taught today, you will not get credit.   If BD = 6, DA = 2, and BC = 15, which proportion would you use to find BE? A 4 inch by 5 inch photo is enlarged to produce a 16 inch by 20 inch photo. What scale factor was used to make the enlargement?

Resource Manager: Make sure to get all of the supplies & call the teacher over, if needed. Take shape inventory at beginning & end. Make sure all shapes are returned to bucket. Facilitator: Make sure that everyone can participate & that no one dominates the process. Recorder/Reporter: Make sure that everyone can reach & see the Venn diagram & the shapes. Record shape placements / present findings at end of lesson. Task Manager: Make sure each team member justifies statements & decisions.

y II I x III IV

+ 0 y = 2/5x 22 Where is our y-intercept?