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Lesson Plan
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\n\"Algebra\n\n
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\nCurated OER\n
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\nAlgebra And Trigonometry - Week 3: Law of Sines\n

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\n\nFor Teachers\n\n12th - Higher Ed\n
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\nIn this law of sines worksheet, students read story problems. They use both algebra and the law of sines and cosines to solve problems. This two page worksheet contains seven problems.\n
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Worksheet
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\n\"Trigonometry\n\n
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\nCurated OER\n
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\nTrigonometry Worksheet\n

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\n\nFor Students\n\n11th - 12th\n
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\nFor this trigonometry worksheet, students determine the range of the given trigonometric functions.  The one page worksheet contains three problems.  Answers are provided. \n
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Lesson Plan
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\n\"Introducing\n\n
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\nCurated OER\n
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\nIntroducing Trigonometry\n

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\n\nFor Teachers\n\n11th\n
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\nEleventh 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...\n
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Lesson Plan
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\n\"Exploration\n\n
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\nCurated OER\n
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\nExploration of Trigonometry\n

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\n\nFor Teachers\n\n6th - 12th\n\nStandards\n
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\nLearners 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...\n
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Worksheet
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\n\"Trigonometry\n\n
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\nCurated OER\n
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\nTrigonometry\n

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\n\nFor Students\n\n10th - 12th\n
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\nIn this right triangles activity, students use trigonometric ratios to determine the length of a side of a triangle or a missing angle measurement.  This two-page activity contains 20 problems.\n
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Worksheet
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\n\"Trigonometry\n\n
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\nCurated OER\n
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\nTrigonometry Homework\n

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\n\nFor Students\n\n10th - 12th\n
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\nIn this right angles worksheet, students use trigonometric ratios to determine the length of a missing side or a missing angle of a right triangle.  This two-page worksheet contains 19 problems.\n
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Worksheet
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\n\"Trigonometry\n\n
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\nCenter for Innovation in Mathematics Teaching\n
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\nTrigonometry\n

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\n\nFor Students\n\n9th - 12th\n\nStandards\n
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\nThis unit covers the basic trigonometry including understanding radians, how to convert between radians and degrees, the area of a circle subtended by an angle, basic properties and graphs of sine, cosine, tangent, and solving...\n
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Worksheet
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\n\"Trigonometry\n\n
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\nTrigonometry Puzzle\n

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\n\nFor Students\n\n8th - 12th\n
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\nIn this trigonometry worksheet, students solve for the degree or the ratio in 48 questions using the 6 basic trigonometric functions. \n
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Unit Plan
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\n\"Right\n\n
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\nRadford University\n
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\nRight Triangle Applications: Lesson 3\n

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\n\nFor Students\n\n9th - 12th\n\nStandards\n
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\nFind the connection between trigonometry and tornadoes. Pairs investigate a tornado in Joplin, Mo., and use trigonometry to find its size. The pupils determine the path of the tornado and find the distance needed to travel to help...\n
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Activity
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\n\"Laying\n\n
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\n101 Questions\n
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\nLaying Sod\n

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\n\nFor Students\n\n9th - 12th\n\nStandards\n
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\nLay out a firm understanding of trigonometry. Scholars watch a video recording of a worker laying sod on a lawn. Given the dimensions of each piece of sod and the lawn, they determine how many pieces of sod are necessary. Trigonometry...\n
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Assessment
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\n\"Trigonometric\n\n
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\nIllustrative Mathematics\n
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\nTrigonometric Ratios and the Pythagorean Theorem\n

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\n\nFor Students\n\n9th - 12th\n\nStandards\n
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\nTake an alternative route with trigonometry and let learners connect a tweaked version of the pythagorean theorem to the original in terms of triangle sides. The assignment leads participants towards deriving the Pythagorean identity...\n
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Interactive
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\n\"Basic\n\n
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\nCK-12 Foundation\n
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\nBasic Trigonometric Functions: Ladder Length\n

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\n\nFor Students\n\n9th - 12th\n\nStandards\n
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\nClimb the ladder to trigonometry. The interactive introduces trigonometric ratios and finding lengths of sides of right triangles created by a ladder and a building. Learners use the interactive to create triangles by moving the top of...\n
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Instructional Video11:21
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\n\"Distances\n\n
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\nCrash Course\n
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\nDistances\n

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\n\nFor Students\n\n6th - 12th\n
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\nHow can you determine the distance between two objects when one is incredibly far away? Discover how early astronomers and mathematicians calculated quantities such as the distance between Earth and the Sun in an insightful video. The...\n
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Activity
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\n\"Lost\n\n
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\n101 Questions\n
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\nLost in the City with a Clinometer\n

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\n\nFor Students\n\n9th - 12th\n\nStandards\n
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\nCome look at trigonometry from a different angle. To begin a simple activity, scholars view a video of someone using a clinometer to find the angle of elevation to the top of a building. They then use a diagram that shows the building's...\n
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Assessment
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\n\"Walled-Up\n\n
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\nConcord Consortium\n
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\nWalled-Up Parabolas\n

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\n\nFor Students\n\n9th - 12th\n
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\nJump at the chance to use parabolas. Young mathematicians apply trigonometry to explore the trajectory of a ball in different situations. Some walls cause the ball to bounce, so participants must consider all possibilities. \n
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Performance
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\n\"Georgia\n\n
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\nRadford University\n
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\nGeorgia Peaches and California Dreamin’\n

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\n\nFor Teachers\n\n9th - 12th\n\nStandards\n
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\nPlant the fruits of trigonometry. Pairs work through the process of finding the best place to plant fruit trees on a piece of property. The scholars must take into consideration the location of the property and the solar zenith angle. To...\n
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Performance
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\n\"Rom/Com\n\n
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\nRadford University\n
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\nRom/Com Final Scene\n

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\n\nFor Teachers\n\n9th - 12th\n\nStandards\n
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\nYou haven't seen this scene before, have you? Young mathematicians first review the Pythagorean Theorem and trigonometry by completing a worksheet. They then consider several problems involving two people running toward each other in a...\n
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Worksheet
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\n\"Solving\n\n
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\nSolving Quadratic Trigonometric Equations\n

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\n\nFor Students\n\n10th - 12th\n
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\nIn this trigonometry worksheet, learners solve quadratic trigonometric equations. The seven page worksheet contains explanation, examples, and sixteen multi-part questions. Answers are not included.\n
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Instructional Video13:03
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\n\"Pythagorean\n\n
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\nKhan Academy\n
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\nPythagorean Theorem, Right Triangles and Trigonometry, Geometry\n

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\n\nFor Students\n\n7th - 11th\n
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\nIn this video, Sal introduces the Pythagorean Theorem to viewers, crossing into the realm of geometry. He uses several examples, including right triangles, to illustrate the applications and uses of the Pythagorean Theorem.\n
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Instructional Video9:40
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\n\"Intro\n\n
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\nKhan Academy\n
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\nIntro to 30-60-90 Triangles, Right Triangles and Trigonometry, Geometry\n

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\n\nFor Students\n\n9th - 10th\n
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\nAs the fourth part of a series on the Pythagorean Theorem, Sal continues an exploration of the ways to calculate the length of sides of a right triangle using algebra. He also used this theorem to solve problems involving a right...\n
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Instructional Video9:37
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\n\"Pythagorean\n\n
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\nKhan Academy\n
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\nPythagorean Theorem II, Right Triangles and Trigonometry, Geometry\n

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\n\nFor Students\n\n9th - 10th\n
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\nThis lecture, the second in a series on the Pythagorean Theorem, delves into more complex problems. It primarily examines the process of finding the value of a hypotenuse. The example problem is beneficial because the solution is not...\n
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Instructional Video9:36
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\n\"Pythagorean\n\n
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\nKhan Academy\n
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\nPythagorean Theorem II, Right Triangles and Trigonometry, Geometry\n

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\n\nFor Students\n\n9th - 10th\n
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\nThis lecture, the second in a series on the Pythagorean Theorem, delves into more complex problems. Primarily, it examines the process of finding the value of a hypotenuse. It is beneficial because the example problem is one in which the...\n
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Lesson Plan
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\n\"Algebra\n\n
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\nCurated OER\n
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\nAlgebra 2 & Trigonometry Practice: Law of Sines\n

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\n\nFor Teachers\n\n9th - 12th\n
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\nFor this law of sines worksheet, students solve 9 multiple choice and short answer problems.  Students use the law of sines to missing side lengths and angles of triangles.\n
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Worksheet
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\n\"Trigonometry\n\n
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\nTrigonometry and the Calculator\n

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\n\nFor Students\n\n10th\n
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\nIn this geometry worksheet, 10th graders use a graphing calculator to evaluate trigonometric functions and their inverses. The four page worksheet contains explanation, examples, and twenty questions. Answers are not...\n
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