Trigonometer: Calculate sine (sin) and cosine (cos) with manipulatives!
Easy print-and-cut-out resources. Recommend that you use card-stock. See attached directions for a example problem that it can be used for. Cut out the triangles at the bottom of the page first!

This is a great resource for when you first introduce the unit circle and sign and cosine. By cutting out the triangles and placing them appropriately on the unit circle students can "see" the values trigonometric (trig) functions of common values such as 30 degrees, pi/4, etc. Students get very engaged using this tool, and really "internalize" rather than just "memorize" these important facts and concepts.

Alignment to:
Precalculus, Precalc, Trigonometry, Trig, Ratios, CCSS
CCSS.MATH.CONTENT.HSF.TF.A.1, CCSS.MATH.CONTENT.HSF.TF.A.2, CCSS.MATH.CONTENT.HSF.TF.A.3, CCSS.MATH.CONTENT.HSF.TF.A.4, CCSS.MATH.CONTENT.HSF.TF.B.5, CCSS.MATH.CONTENT.HSF.TF.B.6, CCSS.MATH.CONTENT.HSF.TF.B.7, CCSS.MATH.CONTENT.HSF.TF.C.8, CCSS.MATH.CONTENT.HSF.TF.C.9

$2.00
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  • Trigonometer-Instructions.pdf
  • Trigonometer-Print-out.pdf

About this resource

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Created: Sep 10, 2015

Updated: Feb 22, 2018

Resource for Centers

pdf, 92 KB

Trigonometer-Instructions

Resource for Centers

pdf, 40 KB

Trigonometer-Print-out

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