Tangents Teacher Resources
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Sin, Cos, and Tan of Right Triangles
Students explore the sine, cosine, and tangent relationships of a right triangle. In this sine, cosine, and tangent relationships of a right triangle activity, students construct a right triangle. Students develop the sine, cosine, and tangent relationships by measuring angles and side lengths of a right triangle.
9th - 12th Math 15 Views 36 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
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
Concepts in Geometry
Students create posters. In this concepts lesson, groups of students use the internet to research different proofs of the Pythagorean Theorem. In addition, they research Greek Mathmaticians. Students create posters and bulletin boards containing their information.
9th - 12th Math 5 Views 56 Downloads
Applied Trigonometry Problems
In this applied trigonometry problems worksheet, students solve 12 short answer word problems. Students use trigonometric ratios to find angles of elevation and depression. Students find distances between objects using trigonometric ratios and angles of elevation and depression.
9th - 12th Math 33 Views 295 Downloads
Exploration of Trigonometry
Learners explore how changing an angle in a triangle changes the ratio of the sides. They also explore how changing the sides can make changes to an angle in a triangle. Finally, they determine how two different pairs of sides, in the same ratio, will give them the same angle.
6th - 12th Math 3 Views 8 Downloads CCSS: Designed
Vectors: Traveling, But in What Direction
High schoolers watch a video of real-world situations regarding speed, direction, velocity, force, etc. and answer questions while viewing. They then practice drawing and using vectors to solve more real-world problems.
9th - 12th Math 11 Views 126 Downloads CCSS: Adaptable
The Unit Circle
Students play a game based on the unit circle used in trigonometry. In this instructional activity on the unit circle, students draw a card a perform a given task including measuring degrees, radians, locating coordinates and finding the value of various functions.
11th - 12th Math 22 Views 98 Downloads
The Unit Circle
Students match points on a unit circle to corresponding angles. In this geometry instructional activity, students evaluate the six trigonometric values and their angles. Students convert between degrees and radians and find the Cartesian equivalent coordinates.
10th - 12th Math 9 Views 32 Downloads
Right Triangles and the Hypotenuse
Students explore geometry by completing worksheets in class. In this angles lesson, students identify the difference between a right angle, obtuse angle and acute angle. Students practice finding the sine, cosine and tangent ratios of triangles on a math worksheet.
10th - 12th Math 5 Views 55 Downloads
Understanding Fundamental Trigonometric Identities
Students are introduced to the basic trigonometric identities. Using a diagram, they discover why the parts of the unit circle as named as they are and use equations to finalize the Pythagorean trigonometric identities. They also review basic algrebra terminology that could be useful in the present.
9th - 12th Math 13 Views 60 Downloads
Investigating the Idea of Sin
Fifth graders use sin to solve problems involving right-angled triangles, Solve equations of the form sin(++) = a, for a between -180++ and 360++. They State and graph the value of sin(++) in special cases. They describe some of the ways in which the sine, cosine and tangent functions are related.
5th Math 3 Views 9 Downloads
In this exploring circles learning exercise, 10th graders solve 155 various types of problems that include exploring circles. First, they determine the circumference of a circle with a radius of the given length. Then, students create circle graphs with the given information.
10th Math 7 Views 9 Downloads