Tangents Teacher Resources

Find Tangents educational ideas and activities

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In this problem you are given an angle of elevation and one side of a right triangle to find a missing side. Watch the instructor explain how to use the tangent ratio formula to solve this problem.
Explore lines tangent to a circle. In this math lesson, high schoolers manipulate circles and lines on a TI calculator. They draw a circle  and analyze perpendicular lines intersecting the circle in only one place. This activity works best if each student has a TI-83 or TI-84 for their own viewing.
Eighth graders use prior knowledge and strategy to explore and attempt to solve a given trigonometry word problem. They complete hands-on labs in which they explore the relationship between the legs and hypotenuse in given triangles.
In this mathematics learning exercise, students solve problems pertaining to high school mathematics. Problems include topics such as finding the sine, cosine and tangent. They graph functions, work with statistics, solve measurement problems, and determine the answer to solve distance problems. This twenty-four page learning exercise contains thirty four multi-step problems.
In this PreCalculus worksheet, students explore inverse relations of sine, cosine, and tangent. They graph three functions and describe the inverse function.
For this final examination worksheet, students find the tangent function and sine function.  They graph problems on a polar coordinate.  Students describe trigonometric properties.  This twelve-page worksheet contains 80 problems.
In this horizontal tangent learning exercise, students solve problems and identify the horizontal tangent. They find the derivative of given expressions. This three-page learning exercise contains 12 multi-step problems. Answers are provided on page three of the learning exercise.
Explore the concept of tangent lines. In this tangent line lesson, learners graph a circle and two lines on their graphing calculator using Cabri Jr. Students construct the lines so that they both intersect at a given point and are both tangent to a circle at two different points. Students measure angles and determine what type of angle is formed by the tangent line and the radius of the circle.
In this local linearity worksheet, students identify the slope of a line tangent to the graph at a given point. They use linear approximation to estimate values. Students determine the slope of a secant line at a given point. This two-page worksheet contains explanations, examples and four multi-step problems.
Students calculate the perimeter of polygons. In this geometry lesson, students identify different shapes based on their number of sides. They define a circle and identify the secant and tangent lines as it relate to the circle.
Tenth graders define the properties of tangent and secant lines. In this circles lesson plan, 10th graders use two lines and a circle to find ways that they relate by illustrations. Students also investigate lines that intersect at the center and lines intersecting inside the circle but not at the center.
Learners identify types of arcs and angles in a circle, find the measure of arcs and angles, and solve real world problems involving lengths of segments in circles, lengths, and areas.
Ninth graders, after being given a unique scenario and a task sheet on Dead Man's Curve, calculate and explain the force needed to keep a car on a curve using a set of formulas and a geometric property of circles. They utilize and create appropriate strategies and formulas with geometric circles to clearly state what was done and why it was done.
Young scholars investigate the properties of circles. In this geometry lesson, students calculate the area and perimeter of a triangle. They identify the perimeter and radius length of a circle.
Learners solve problems by finding the radius or diameter. In this geometry instructional activity, students identify the tangent line of a circle and use properties of circles to find the radius. They relate circles to the real world.
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.
Students explore the concept of Pi. In this Pi instructional activity, students calculate the area of regular polygons inscribed and circumscribe around a unit circle. Students use their data to create an algorithm to find Pi with never ending digits.
Tenth graders investigate Pi.  In this geometry lesson, 10th graders inscribe and circumscribe regular polygons in and around the unit circle to arrive at an approximation of Pi. 
Learners investigate trigonometric identities. In this calculus lesson, students draw graphs of sine, cosine and tangent and identify the six trigonometric functions.
In this physics worksheet, students solve 23 trigonometry based problems. Students apply the Pythagorean Theorem in electricity calculations.

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