### Clarifications

*Clarification 1*: Instruction includes procedural fluency with the relationships of side lengths in special right triangles having angle measures of 30°-60°-90° and 45°-45°-90°.

**Subject Area:**Mathematics (B.E.S.T.)

**Grade:**912

**Strand:**Trigonometry

**Date Adopted or Revised:**08/20

**Status:**State Board Approved

## Related Courses

## Related Access Points

## Related Resources

## Formative Assessments

## Lesson Plan

## Original Student Tutorial

## Perspectives Video: Expert

## MFAS Formative Assessments

Students are asked to solve a problem in a real world context requiring the use of the Pythagorean Theorem.

Students are asked to use 30-60-90 triangle relationships to observe and explain the relationship between sin 30 and cos 60 (or sin 60 and cos 30).

Students are asked to find an unknown length in a real world context requiring right triangle trigonometry.

Students are asked to determine the length of a side of a right triangle in a real-world problem.

Students are asked to find an unknown length in a real world context requiring right triangle trigonometry.

Students are asked to explain the relationship between sine and cosine of the acute angles of a right triangle.

Students are asked to explain the relationship among angles in a diagram involving a right triangle and to find one angle of the right triangle.

Students are asked to solve a problem in a real world context requiring the use of the Pythagorean Theorem.

Students are asked to find the angle of elevation in a real world situation modeled by a right triangle.

Students are asked to solve a problem in a real world context using the Pythagorean Theorem.

## Original Student Tutorials Mathematics - Grades 9-12

Learn how to use trigonometric ratios to find the heights of famous monuments and solve a real-world application in this interactive tutorial.

## Student Resources

## Original Student Tutorial

Learn how to use trigonometric ratios to find the heights of famous monuments and solve a real-world application in this interactive tutorial.

Type: Original Student Tutorial