# Tom Chandler

Geometry
85 Lessons
Highland High
Ault, CO
Student Environment:
Rural
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## Geometry

(8 Units, 85 Lessons)

#### 1. Building a Kicker Ramp

Big Idea: Students are introduced to trigonometry as they use the properties of similar right triangles to evaluate a design for a skateboard ramp.
Standards:
Favorites (21)   Resources (26)

#### 2. Tangent Ratio Investigation

Big Idea: Students use an online tool to perform an investigation and learn the properties of the tangent function.
Standards:
Favorites (3)   Resources (14)

#### 3. Applying the Tangent Ratio

Big Idea: Students extend the concepts they have already used to solve special right triangles to right triangles of any angle—Behold! Trigonometry.
Standards:
Favorites (1)   Resources (16)

#### 4. Understanding Tangent as a Function

Big Idea: Tables reveal the nature of the tangent function as students extend their strategies to include its inverse. Now we know all the angles!
Standards:
Favorites (0)   Resources (22)

#### 5. Progress Check and Homework Review 1

Big Idea: Student questions are the focus of the lesson as students grade their own homework and prepare for homework quiz.
Standards:
HSG-SRT.C MP1 MP6
Favorites (0)   Resources (24)

#### 6. Properties of Sine and Cosine

Big Idea: Exploring the meaning of sine and cosine as ratios and as relationships. Trigonometry is just similar triangles—but better!
Favorites (5)   Resources (22)

#### 7. Solving Triangles with Trigonometry

Big Idea: Students refine their strategies for applying trigonometric relationships. Now we see trigonometry from every side—and angle!
Favorites (2)   Resources (13)

#### 8. Modeling with Trigonometry

Big Idea: Turning word problems into right triangles. A good diagram is worth many words.
Standards:
Favorites (13)   Resources (13)

#### 9. Measuring the Flag Pole

Big Idea: Students make simple clinometers and use them to measure the height of the flag pole in front of the school. Beats climbing!
Standards:
HSG-SRT.C MP5 MP6
Favorites (6)   Resources (21)

#### 10. Introduction to Trigonometry Unit Quiz

Big Idea: Students complete the summative assessment for the unit and take a pre-test for the next unit.
Standards:
Favorites (7)   Resources (29)
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