Tangents Teacher Resources
Find Tangents educational ideas and activities
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Unit Circle Lesson Plan
Students identify different locations on a unit circle. In this precalculus lesson, students identify the different trig properties and rewrite the equation of a circle in standard form. They use mnemonic devices to help them remember the different ratios of trigonometry.
11th - 12th Math 9 Views 40 Downloads
Unit Circle Triangle
Students find the different ratios of a right triangle. In this geometry lesson, students apply the concept of the Pythagorean theorem as they identify the different angles and parts of a Unit Circle. They find the ratios of sine, cosine, and tangent.
11th - 12th Math 3 Views 2 Downloads
New Review 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 any angle on the unit circle, as well as find the ratios for all six trigonometric functions: cosine, sine, tangent, secant, co-secant, and cotangent.
9th - 12th Math 3 Views 0 Downloads CCSS: Designed
Unit Circle Review
Students relate properties of right triangles to the unit circle. In this trigonometry lesson, students identify the different ratios of a right triangles and use it create the different parts of a Unit Circle. They find the six trig identities using the unit circle.
10th - 12th Math 4 Views 25 Downloads CCSS: Designed
The Unit Circle and Special Triangles
Students identify the properties of right triangles. In this geometry instructional activity, students identify the different ratios and parts of a Unit Circle. They use the unit circle as an aid in finding parts of a special triangle and trig identities.
9th - 11th Math 3 Views 23 Downloads CCSS: Designed
Similar Parts Investigation
How tall is that flagpole? Your pupils might want to stand on each other's shoulders to answer this, but this activity is all about using the math knowledge they already possess. Using right triangle trigonometric ratios (SOH CAH TOA) and the Pythagorean theorem, young geometers solve real-world problems.
9th - 11th Math 15 Views 28 Downloads CCSS: Designed
Graphing at all Levels: It's a Beautiful Thing!
Mixing math and art is done in this lesson by applying graphing knowledge to create a unique piece of art. This lesson varies acording to the graphing knowledge of the artist. First, learners identify and review various types of graphing techniques using a PowerPoint, and interact with a number of websites to reinforce graphing lines, quadratics, exponentials, and conics.
8th - 12th Math 37 Views 63 Downloads CCSS: Designed
Sin, Cos, and Tan of Right Triangles
High schoolers explore the sine, cosine, and tangent relationships of a right triangle. In this sine, cosine, and tangent relationships of a right triangle lesson, students construct a right triangle. High schoolers develop the sine, cosine, and tangent relationships by measuring angles and side lengths of a right triangle.
9th - 12th Math 14 Views 35 Downloads
Arc Length Lesson
Students find the length of the arc of a circle. In this geometry lesson, students calculate the length of an arc and find the measure of the central angle given the length of the arc. They convert between linear and angular speed. They find the distance, given the speed, radius and time.
9th - 11th Math 5 Views 46 Downloads
Basic Trigonometry ll
Sal continues with examples of finding the sine, cosine, and tangent of an angle in a right triangle using SOH-CAH-TOA. In his examples, he reviews the use of the Pythagorean Theorem and rationalizing the denominator of a fraction. He also does an example of traditional 30-60-90 triangle and finds each of the three trigonometric ratios for the 30 and 60 angles.
12 mins 10th - 12th Math 3 Views 0 Downloads
This video introduces the basics of trigonometry. It starts by defining a right triangle and showing two different examples of finding the ratios of sine, cosine, and tangent using the SOH-CAH-TOA mnemonic. This resource could be used as a quick introduction or review.
9 mins 10th - 12th Math 3 Views 1 Download
Eleventh graders explore the three basic trigonometric functions. In this trigonometry/Algebra II lesson, 11th graders use GeoGebra and the unit circle to define the ratios of sides is a right triangles as they examine the full domain for the function.
11th Math 4 Views 22 Downloads
Graphs from the Unit Circle
Students explore the concept of sine and cosine. In this sine and cosine lesson, students use uncooked spaghetti to transfer lengths from the unit circle to a function graph on large butcher paper. Students can graph the spaghetti in degrees or in radians.
9th - 12th Math 14 Views 51 Downloads