Tangents Teacher Resources
Find Tangents educational ideas and activities
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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.
NUMB3RS Activity: Circling Around
Students explore Venn Diagrams. In this secondary math lesson, students consider Venn diagrams as a problem solving tool for narrowing down a list of suspects. Students are provided with information regarding possible suspects and they create Venn diagrams to organize the information and narrow their suspect search.
Proofs of Tangent and Secant Lines
Students write proofs for tangent and secant lines. In this geometry lesson plan, students examine lines that are tangent and secant to a circle.
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.
Writing Equations of Circles
In this writing equations worksheet, students examine given information and write the equation of a circle in standard form. This four-page worksheet contains 30 problems. Answers are provided on the last page.
Tangents Multiple Choice
In this circles worksheet, learners solve 10 multiple choice problems. Students use a diagram of a circle with tangent lines and segment bisectors to answer each question. Learners find unknown segment lengths using the given information.
Eleventh graders explore the three basic trigonometric functions. In this trigonometry/Algebra II instructional activity, 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. Students switch from measuring angles in degrees to radians.
Geometry of Shape and Size
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.
Arclength and Trigonometric Graphs
Students are able to use given information to calculate missing information. In this trigonometry instructional activity, students identify the relationship between sine, cosine and tangent graphs. They examine the graphs for zeros and asymptotes.
MOTION IN A CIRCLE
Students explore uniform circular motion, and the relation of its frequency of N revolutions/sec with the peripheral velocity v and with the rotation period T, and the "centripetal acceleration" of an object.
Equations of Circles
In this equations of circles worksheet, 10th graders solve 10 different problems that include graphing different circles. First, they convert the equations into center-radius form given the coordinates of the center of the circle and its radius. Then, students state the equation of a circle in standard form that has a given center and radius. They also write a center-radius equation for each graph of a circle found on the bottom of the sheet.
Finding the Sum of the Perimeters of 3 Small Circles
For this geometry worksheet, learners find the sum of the perimeters of three small circles. These small circles are tangent to each other and to a larger circle. The centers of the small circles have their centers on the diameter of the larger circle. A sketch is provided.
Chords Secant and Tangents
Students identify the chords, secants and tangents of a line to a circle. In this geometry lesson, students define vocabulary words and identify the relationship of angles to intersected lines.
In this circles worksheet, 10th graders solve 10 different problems that include determining the chords, secants, and tangents of circles shown. First, they determine 4 different line segments given a circle with secants and chords with dimensions. Then, students determine a line segment in another circle given the diameter perpendicular to a chord.
8.3 Skills Practice: Circles
For this circles worksheet, students write an equation for a circle that meets specified criteria. They find the center and radius of a circle with the given equation and graph the circle. This one-page worksheet contains 18 multi-step problems.
Chapter 8: Circles
In this circles worksheet, learners define and sketch 20 terms about circles. Students sketch radii, chords, diameters, secants, concentric circles, etc.
We're Related How?
Tenth graders define the properties of tangent and secant lines. In this circles lesson, 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.
Investigate the properties of a Unit Circle, wahoo! Your class will memorize the basic identities of sine, cosine, and tangent. Then those smart cookies can investigate the negative of an angle measure using sine and cosine. Included are a series of critical thinking questions and vocabulary list is included.
Circles:Tangents and Chords
In this circle activity, students solve classic chord-chord angle problems with the angle on, in, and outside the circle as well as chord-tangent problems. There are 20 questions.
Other Trigonometric Functions
Students solve problems using trig values. In this trigonometry lesson, students identify the six trigonometric values. They graph the functions of sine, cosine and tangent.