Scholars first learn the definitions of the sine ratio, the cosine ratio, and the tangent ratio. After mastering these definitions, they use the new information to solve triangles.

Concepts

trigonometric ratios, cosine, sine, tangent

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Additional Tags

math

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Instructional Ideas

• Use the resource to introduce sine, cosine, and tangent

Classroom Considerations

• Learners need access to calculators
• Pupils should be familiar with the Pythagorean Theorem and special right triangles
• Note that while the title of the resource includes trigonometric functions, it is about finding trigonometric ratios

Pros

• Auxiliary materials contain a table of trigonometric values in case pupils do not have scientific or graphing calculators
• Teacher resource includes answer key to all examples and problems

Cons

• None