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Algebra & Modeling - 36%


Functions & Modeling - 36%


Statistics, Probability, & the Numbering System - 28%


In Your Text

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What You Need To Know...

MAFS.912.F-TF.1.2 – Explain how the unit circle in the coordinate plane enables the extension of trigonometric functions to all real numbers using radian measures of angles traversed counterclockwise around the unit circle.

  1. The benchmark will be assessed using Equation Response, Graphic Response, Hot Spot Response, Movable Text Response, Selectable Text Response or Open Response.
  2. Items may require students to: find arc length or sector area based on radian measures; convert radian measure to degree measure and vice versa; or prove the Pythagorean identity.
  3. Trig ratios are limited to sine or cosine.

Example One

Example Two

Example Three

Additional Examples


In the Coordinate Plane
Please select a video file.
Using Unit Circle
Identifying Coordinate Signs
Evaluate in All Fours Quadrants
Find Ratios on the Coordinate Axis
Determine the Domain

Reference Sheet