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On Desk: 1. Pencil 2. Math Journal 3. WDYE Learning Log 4. Parent Signatures? Learning Log: 1. HW: p.58 #1-labsheet, #2-3, #15-20, 23-25 Math CC7/8 – Be.

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Presentation on theme: "On Desk: 1. Pencil 2. Math Journal 3. WDYE Learning Log 4. Parent Signatures? Learning Log: 1. HW: p.58 #1-labsheet, #2-3, #15-20, 23-25 Math CC7/8 – Be."— Presentation transcript:

1 On Desk: 1. Pencil 2. Math Journal 3. WDYE Learning Log 4. Parent Signatures? Learning Log: 1. HW: p.58 #1-labsheet, #2-3, #15-20, 23-25 Math CC7/8 – Be Prepared

2 Warm Up Lesson 3.1 Probability with Spinners Begin HW? Tasks for Today

3 P(brown) = 5/20 = 1/4 No! It will simplify to the same answer. P(brown) = 10/40 = 1/4 Warm Up

4 Solving Equations and Angle Review: Solve for x. (z + 80)3z D E B A C Without measuring, find the measure of angle CBD in degrees. 6(10 + x) AB C

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6 They all give him the SAME chance of going to bed at 11:00! Eleven o’clock covers ½ of each circle.

7 Alphabet Spinner In your journals - Find the theoretical probability of landing on A, B, C, D, E. What must you do first? Divide into equal size pieces!  How many Ds are in B? C? A? E?  What is your common denominator? P(A) = 4/16 = 1/4 P(B) = 2/16 = 1/8 P(C) = 2/16 = 1/8 P(D) = 1/16 P(E) = 7/16

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9 1.Which time do you think is most likely to occur? Discuss in your groups. 2.Is Kalvin’s father likely to agree to use this spinner? Explain why or why not. 11:00 and 9:00 are equally likely to occur (3/8) Kalvin’s father is probably not likely to agree because he is more likely to go to bed later than 9:00.

10 Skip?

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12 Nine o’clock and 11:00 both cover 3/8 of the circle. P(9:00) = 3/8 P(10:00) = 2/8 = ¼ P(11:00) = 3/8

13 P(11:00) = 3/8 = 24/64 P(9:00) = 3/8 = 24/64 P(10:00) = 2/8 = ¼ = 16/64


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