Teacher tools for this standard
Lesson Plan · Guided Notes · Exit Ticket · Re-teach · Homework
Teacher tools for this standard
Lesson Plan · Guided Notes · Exit Ticket · Re-teach · Homework
- Lesson Plan →Objectives, pacing and practice, built from this lesson's brief.
- Guided Notes →One page your students fill in and keep.
- Exit Ticket →Three items at the end of class. No student accounts.
- Re-teach →After an exit ticket: who missed what, and what to do tomorrow.
- Homework →Assign practice; it grades itself.
G 604. Apply basic trigonometric ratios to solve right-triangle problems
G 509. Express the sine, cosine, and tangent of an angle in a right triangle as a ratio of given side lengths
G 603. Apply properties of 30°-60°-90°, 45°-45°-90°, similar, and congruent triangles
G 602. Use the Pythagorean theorem
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G 604. Apply basic trigonometric ratios to solve right-triangle problems
G 509. Express the sine, cosine, and tangent of an angle in a right triangle as a ratio of given side lengths
G 603. Apply properties of 30°-60°-90°, 45°-45°-90°, similar, and congruent triangles
G 602. Use the Pythagorean theorem
What you'll learn
- Solve a right triangle for an unknown side or acute angle using sine, cosine or tangent
- Choose which of sine, cosine or tangent to use, given which two of opposite, adjacent and hypotenuse the problem involves
- Solve for an unknown side whether the variable sits in the numerator or the denominator of the ratio
- Use an inverse trig function to find an unknown acute angle from two known sides, distinguishing $\tan^{-1}$ from $\frac{1}{\tan}$
- Translate an angle-of-elevation or angle-of-depression description into a labelled right triangle and solve it
Slides
Step through the lesson, or watch it as a narrated video
Slides
In development
Not yet available • Check back soon!