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- HSG-SRT.C.6Understand that by similarity, side ratios in right triangles are properties of the angles in the triangle, leading to definitions of trigonometric ratios for acute angles.
- HSG-SRT.C.7Explain and use the relationship between the sine and cosine of complementary angles.
- HSG-SRT.C.8Use trigonometric ratios and the Pythagorean Theorem to solve right triangles in applied problems.*

NPR Car Talk Problem - Day 1 of 2

12th Grade Math

» Unit:

Trigonometric Functions

Big Idea:This problem from NPR's Car Talk is engaging, challenging, and mathematically rich!

NPR Car Talk Problem - Day 2 of 2

12th Grade Math

» Unit:

Trigonometric Functions

Big Idea:This problem from NPR's Car Talk is engaging, challenging, and mathematically rich!

Final Exam Review Stations (Day 1 of 3)

12th Grade Math

» Unit:

Review

Big Idea:Students review by working through various stations at their own pace and receive immediate feedback on their work.

Trig with Zip!

Algebra II

» Unit:

Intro to Trig

Big Idea:How do I even start this problem?! Give your students tools to help make sense of and work with trig problems.

Reviewing the Pythagorean Theorem

Geometry

» Unit:

Area Relationships

Big Idea:The focus is on student questions as we review homework and summarize with notes.

Formalizing Properties Known Informally

12th Grade Math

» Unit:

Trigonometric Identities

Big Idea:How can I find the value of other trigonometric functions if I only know one or two values?

Problem Solving with Triangles

12th Grade Math

» Unit:

Solving Problems Involving Triangles

Big Idea:What is the most efficient way to solve problems involving triangles?

Clinometer Project (Day 1 of 2)

12th Grade Math

» Unit:

Fundamentals of Trigonometry

Big Idea:Students build clinometers in preparation for indirectly measuring the height of objects that we would not normally be able to measure.

Solving Triangles with Trigonometry

Geometry

» Unit:

Introduction to Trigonometry

Big Idea:Students refine their strategies for applying trigonometric relationships. Now we see trigonometry from every side—and angle!

Riding a Ferris Wheel - Day 2 of 2

12th Grade Math

» Unit:

Trigonometric Functions

Big Idea:Make the transition from the Ferris wheel problem to the unit circle.

Pythagorean Theorem Unit Assessment

Geometry

» Unit:

The Pythagorean Theorem

Big Idea:In this unit assessment, students will work through leveled problems that will allow them to demonstrate varying levels of mastery.

Finding Angle Measurements Using Trig

Geometry

» Unit:

Right Triangle Trigonometry

Big Idea:Students put their knowledge of trig to work solving problems and proving hypotheses involving angles.

Solve Real World Problems with Clinometers

Geometry

» Unit:

Triangle Similarity and Trigonometric Ratios

Big Idea:By using clinometers, students will be able to collect data to determine the height of hard-to-measure objects around the campus.

Trig Jeopardy

12th Grade Math

» Unit:

Fundamentals of Trigonometry

Big Idea:Student teams get very competitive as they fight to be the winners of Trig Jeopardy.

More on Finding Lengths of Segments

Geometry

» Unit:

Right Triangle Trigonometry

Big Idea:Students continue to apply trig functions, while also learning about the relationship between the sine and cosine of complementary angles.

HSG-SRT.C.6

Understand that by similarity, side ratios in right triangles are properties of the angles in the triangle, leading to definitions of trigonometric ratios for acute angles.

HSG-SRT.C.7

Explain and use the relationship between the sine and cosine of complementary angles.

HSG-SRT.C.8

Use trigonometric ratios and the Pythagorean Theorem to solve right triangles in applied problems.*