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Lesson Plan: Parallax and Trigonometry

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This lesson engages high school students in understanding how trigonometry is applied to measure distances using the principle of parallax, a key method in astronomy. Students investigate how a shift in viewpoint creates a measurable angle that, combined with a known baseline, forms a triangle. By applying trigonometric functions and small-angle approximations, students calculate distances to objects, simulating the method astronomers use to determine the distance to nearby stars. Through intera

7th - 12th, Adult Education, Higher Education

Anatomy, Geometry, PreCalculus

CCSS, NGSS

HSG-CO.D.12

, HSG-SRT.C.8

, HSS-ID.B.6

Trigonometry Made Clear 2.0 | Sine Cosine Tangent Including Inverses!

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Geometry Made Clear

Trigonometry Made Clear 2.0 | Algebraic Applications & Inverse TrigTake student understanding of right triangle trigonometry to the next level with this rigorous, algebra-focused continuation of the Trigonometry Made Clear series. This lesson builds directly on the foundational concepts introduced in Lesson 1.0 and challenges students to apply sine, cosine, tangent, and inverse trigonometric functions in more demanding algebraic situations. Students must move beyond simple substitution and deve

10th - 12th, Higher Education

Geometry, PreCalculus