Malin Math Introduces the idea of combining known angle facts to determine others. t2 Christersson’s Site Includes a couple of questions at the end of the notes. Chris Smith A very entertaining video that uses the circle and spaghetti to create a sine t2 curve. Geogebra Cosine Identity t2 link the corresponding values of on the graph Geogebra Sine Identity t2 link the corresponding values of on the trig graph Geogebra Tangent Identity t2 link the corresponding values of on the graph . Geogebra Trigonometry area formula t3 Shows how to find the area of a triangle including step by step working. Math Demonstration of area of triangle and the sine/cosine rules. t3 and t4 Malin Christersson’s Site Geogebra Interactive exercise that allows different triangles to be investigated with t4 step by step working. Geogebra Interactive exercise that allows different triangles to be investigated with t4 step by step working. Geogebra Interactive exercise that allows different triangles to be investigated with t4 step by step working. Geogebra Interactive exercise that allows different triangles to be investigated with t4 step by step working. Geogebra Shows the step by step proof for the first of the Pythagorean Identities t6 using geogebra Geogebra Gives the exact values of the trig functions around the circle. t8 Undergound Mathematics This problem looks at how , and are related to each other. By working on t8 the task, students can combine graph sketching, the unit circle, identities and solving equations.
Malin Christersson’s Math Site Introduces the idea of combining known angle facts to determine others. Includes a couple of questions at the end of the notes. t2 Chris Smith A very entertaining video that uses the circle and spaghetti to create a sine curve. t2 Geogebra Cosine Identity link the corresponding values of on the graph t2 Geogebra Sine Identity link the corresponding values of on the trig graph t2 Geogebra Tangent Identity link the corresponding values of on the graph . t2 Geogebra Trigonometry area formula Shows how to find the area of a triangle including step by step working. t3 Malin Christersson’s Math Site Demonstration of area of triangle and the sine/cosine rules. t3 and t4 Geogebra Interactive exercise that allows different triangles to be investigated with step by step working. t4 Geogebra Interactive exercise that allows different triangles to be investigated with step by step working. t4 Geogebra Interactive exercise that allows different triangles to be investigated with step by step working. t4 Geogebra Interactive exercise that allows different triangles to be investigated with step by step working. t4 Geogebra Shows the step by step proof for the first of the Pythagorean Identities using geogebra t6 Geogebra Gives the exact values of the trig functions around the circle. t8 Undergound Mathematics This problem looks at how , and are related to each other. By working on the task, students can combine graph sketching, the unit circle, identities and solving equations. t8
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