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9-12 Geometry Unit 8 Lesson 2

Gradeband

K-5 Math 6-8 Math •9-12 Math

Course

Algebra 1 •Geometry Algebra 2 Extra Support Materials for Algebra 1

Unit

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 •Unit 8

Modeling Prompts

Lesson

Lesson 1 •Lesson 2 Lesson 3 Lesson 4 Lesson 5 Lesson 6 Lesson 7 Lesson 8 Lesson 9 Lesson 10 Lesson 11

K-5
6-8
9-12

Algebra 1
Geometry
Algebra 2
Extra Support Materials for Algebra 1

Integrated Math 1
Integrated Math 2
Integrated Math 3

Unit 1
Unit 2
Unit 3
Unit 4
Unit 5
Unit 6
Unit 7
Unit 8

Modeling Prompts

Lesson 1
Lesson 2
Lesson 3
Lesson 4
Lesson 5
Lesson 6
Lesson 7
Lesson 8
Lesson 9
Lesson 10
Lesson 11

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Unit 8, Lesson 2

Playing with Probability

Geometry

Practice

Problem 1
Student Task Statement
Six papers are placed in a bag with names written on them. The names are: Lin, Mai, Mai, Noah, Priya, and Priya. If one name is chosen at random, what is the probability that it is Priya?

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Problem 2

Student Task Statement

Select all of the words for which the probability of selecting the letter E at random is .

THE
BEST
SNEEZE
FREES
SPEECH

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Problem 3

Student Task Statement

Design a situation for which the probability of one event is and another event is . Explain your reasoning.

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Problem 4

ForLesson 1: Up to Chance

Student Task Statement

What is the probability of the spinner landing on the section labeled B?

<p><strong>Spinner with 5 sections. Sections R, G and Y each make up one fourth of spinner. Sections P and B each 1 eighth of spinner.</strong></p>

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Problem 5

ForLesson 1: Up to Chance

Student Task Statement

This spinner is spun 300 times. Estimate the number of times it would be expected to land on the section labeled B.

<p><strong>Spinner with 6 equal sections, labeled A, B, C, D, E and F.</strong></p>

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Problem 6

ForLesson 13: Using Radians

Student Task Statement

A circle has a radius of 5 units. For each angle measure, find the area of a sector of this circle with that central angle.

radians
3 radians

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Problem 7

ForLesson 13: Using Radians

Student Task Statement

Select all formulas that could be used to find the area of this sector. The angle is measured in radians.

<p>A circle with shaded sector with a central angle labeled theta and radius r.</p>

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Problem 8

ForLesson 7: Circles in Triangles

Student Task Statement

Triangle is shown with an inscribed circle of radius 4 units centered at point . The inscribed circle is tangent to side at point . The length of is 6 units and the length of is 8 units. What is the measure of angle ?

Triangle ABC with a circle inside with center D. Dashed lines from D to outside of circle, one labeled 4. AG = 6. BG = 8.

60 degrees
30 degrees

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Problem 9

ForLesson 3: Half an Equilateral Triangle

Student Task Statement

Select all the true statements.

Right triangle ABC. Angle A = 90 degrees. Angle B = 60 degrees. Side BC= 10 units.

Angle is 30 degrees.
Side is 5 units.
Side is 5 units.
Side is units.
Side is units.

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Lesson 2 Resources

Student Materials