Facilitated Remembrance of Trig Functions
Students review the trigonometric functions of sine, cosine, and tangent. They foster expertise with the secant, cosecant, and cotangent functions. Students invent a story about CHOSHACAO and her special relationship with SOHCAHTOA.
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Similar Right Triangles and Trig Ratios
Is it possible to be the same yet different? Absolutely! The activity asks learners to explore the relationships between side ratios of triangles they have drawn. Because individuals all draw a triangle with the same angle measures, they...
9th - 11th Math CCSS: Designed
Special Right Triangles and Right Triangle Trigonometry
Right triangles are so special! Use special right triangles to discover the trigonometric ratios. Pairs construct special right triangles and find the values of the ratios of the sides. In the process, they discover the ratios stay the...
9th - 11th Math CCSS: Adaptable
Indirect Measurement Technique: Using Trigonometric Ratios
Students explore the concept of trigonometric ratios. In this trigonometric ratios lesson, students use trigonometric ratios and the angle of elevation/depression to determine the height of an object. Students use their clinometer made...
9th - 12th Math
Round and Round the Unit Circle
Your young trigonometry learners will analyze and discover the many valuable relationships on the Unit Circle in this very rich collaborative task. Using co-terminal and reference angles in degrees and radians, learners find and label...
9th - 12th Math CCSS: Designed