Trigonometry Unit

Grade Levels
9th - 11th, Homeschool
Resource Type
Formats Included
  • Zip
16 pages
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9 Note taking guides and 9 FREE videos!

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Trig Unit covering all the basic Geometry concepts for the SAT/ACT with mixed reviews and basic word problems. Created for a High School Geometry course.
Pythagorean theorem and Sum of a triangle theorem
30-60-90 Triangles
45-45-90 Triangles
Sine, Cosine, Tangent ratios
Finding angles using Sine, Cosine, Tangent
Mixed review
Word problems involving trig and special right triangles.
Excellent unit, Very thorough
Includes links to FREE Video instruction from Moomoomath. Videos can be viewed by teachers or students or both. Video are instruction using these notetaking guides, so all the keys are the videos.

Follow up worksheets for every lesson available also with KEYS. These are available on Teachers Pay Teachers as another good.
Total Pages
16 pages
Answer Key
Teaching Duration
2 Weeks
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to see state-specific standards (only available in the US).
Understand radian measure of an angle as the length of the arc on the unit circle subtended by the angle.
Explain how the unit circle in the coordinate plane enables the extension of trigonometric functions to all real numbers, interpreted as radian measures of angles traversed counterclockwise around the unit circle.
Use special triangles to determine geometrically the values of sine, cosine, tangent for π/3, π/4 and π/6, and use the unit circle to express the values of sine, cosine, and tangent for π–𝘹, π+𝘹, and 2π–𝘹 in terms of their values for 𝘹, where 𝘹 is any real number.
Use the unit circle to explain symmetry (odd and even) and periodicity of trigonometric functions.
Choose trigonometric functions to model periodic phenomena with specified amplitude, frequency, and midline.


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