Tangents Teacher Resources
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Drawing a Line Tangent to a Circle
Explore lines tangent to a circle. For this math lesson, students 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.
9th - 12th Math 3 Views 4 Downloads CCSS: Designed
Introduction to Trigonometry for 8th Grade
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.
8th Math 9 Views 41 Downloads
Mathematics B: New York High School Test
In this mathematics activity, 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.
11th - 12th Math 3 Views 11 Downloads
In this horizontal tangent instructional activity, students solve problems and identify the horizontal tangent. They find the derivative of given expressions. This three-page instructional activity contains 12 multi-step problems. Answers are provided on page three of the instructional activity.
Higher Ed Math 3 Views 0 Downloads
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.
9th - 12th Math 3 Views 3 Downloads CCSS: Designed
Local Linearity and the Microscope Approximation
In this local linearity learning exercise, 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 learning exercise contains explanations, examples and four multi-step problems.
Higher Ed Math 3 Views 0 Downloads
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.
10th Math 3 Views 2 Downloads
DEAD MAN'S CURVE
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.
9th Math 3 Views 6 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 7 Downloads CCSS: Designed
Pi Filling, Archimedes Style!
Students explore the concept of Pi. In this Pi lesson, 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.
9th - 12th Math 3 Views 11 Downloads
Sum and Difference angle formulas
Learners use the sum angle formula for sine to derive the sum and difference formulas for cosine and tangent. The level of difficulty is quite high. Learners must be familiar with trigonometric identities as well as the characteristics of even functions before beginning.
10th - 12th Math 6 Views 7 Downloads CCSS: Designed