Let your students independently, effectively and comprehensively learn the three basic trigonometric ratios. You be the facilitator!
This product is part of the Secondary Trigonometry bundle. Click Here for 40% savings!
Students love discovery exercises. With Geogebra, the user can move and change objects with the click of a mouse. In this exercise, when you move a given point, a new right triangle is formed.Text boxes on screen automatically update and display changing angles in degrees as well as the lengths of the sides of the triangles.
This allows students to clearly see and measure the side lengths of triangles with similar angles. And, they will see that triangles with similar angles can have different side lengths. A key concept in truly understanding why trig ratios remain constant.
Geogebra, a free program, is quickly and easily downloaded from the internet to both computers and tablets (as an app). Students can work individually in a computer lab or you can use a single computer and projector and work through the exercise as a group. Alternatively, you could use the flipped classroom model and have them complete the exercise at home allowing class time to further develop the ideas presented.
Six pdf pages of guided exercises, questions and calculations along with one geogebra file will provide your students with a complete resource to explore this topic.
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For Geogebra exercises in other topics click the title below:
High School Trigonometry Bundle ( 40% savings! )
Area of Any Triangle ( free ! )