Interactive
Curated OER

Law of Sines or Sine Rule

For Students 9th - 12th
In this online math worksheet, students construct triangles and squares by utilizing the sine rule. This excellent resource allows the students to check their answers, and to get "hints" should they run into difficulties. A terrific...
Lesson Plan
Curated OER

Trig Derivatives

For Teachers 10th - 12th
In this trigonometric derivative worksheet, learners analyze the function and identify the derivative. This one-page worksheet contains approximately 20 problems.
Worksheet
Curated OER

Making Choices

For Students Higher Ed
In this making choices worksheet, students find the integral of given problems. This one-page, hand-written, worksheet contains 52 problems.
Lesson Plan
EngageNY

Cyclic Quadrilaterals

For Teachers 9th - 12th Standards
What does it mean for a quadrilateral to be cyclic? Mathematicians first learn what it means for a quadrilateral to be cyclic. They then investigate angle measures and area in such a quadrilateral.
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Mathematics Archives

Math Archives: Visual Calculus: 47 Trig Identities!

For Students 9th - 10th Standards
This makes for a great handout for students and teachers, alike! A comprehensive list of 47 commonly-used trig identities.
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Paul Dawkins

Paul's Online Notes: Trig Cheat Sheet [Pdf]

For Students 9th - 10th Standards
A trigonometry "cheat sheet" to use as a reference when completing trigonometry homework. Lists basic facts, properties, identities, formulas, and inverse trigonometric functions.
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Oswego City School District

Regents Prep: Applications of Trigonometric Graphs

For Students 9th - 10th Standards
Students can use this site to practice questions dealing with trigonometric graphs. Students are challenged with multiple real-world problems and after solving those problems they can check their solution online.
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Other

Mecca: Review for Trigonometric Functions

For Students 9th - 10th Standards
A page of review problems on trigonometric functions. Answers are supplied.