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Lesson Plan
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\n\"Sorting\n\n
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\nMathematics Assessment Project\n
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\nSorting Equations of Circles 2\n

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\n\nFor Teachers\n\n9th - 12th\n\nStandards\n
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\nHow much can you tell about a circle from its equation? This detailed lesson plan focuses on connecting equations and graphs of circles. Learners use equations to identify x- and y-intercepts, centers, and radii of circles. They also...\n
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Lesson Plan
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\n\"Circle\n\n
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\nCurated OER\n
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\nCircle of Pong\n

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\n\nFor Teachers\n\n3rd - 12th\n
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\nStudents, in groups, use given materials to devise a way to deposit a ping-pong ball into a paper cup that is located in the middle of a 6-foot diameter circle, while standing outside the circle.\n
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Worksheet
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\n\"Unit\n\n
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\nCurated OER\n
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\nUnit VII Energy: WS 3a Energy Transfer and Storage\n

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\n\nFor Students\n\n9th - 12th\n
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\nHere is a nifty worksheet on energy transfer. Physics fanatics analyze a diagram and state whether or not friction is involved. They sketch bar graphs and draw energy flow diagrams for each system as well. Circular motion, movement up...\n
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Instructional Video9:05
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\n\"SAT\n\n
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\nKhan Academy\n
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\nSAT Prep: Test 8 Section 2 Part 1\n

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\n\nFor Students\n\n9th - 12th\n
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\nTest eight from The Official SAT Study Guide includes eighteen problems, the first four of which are featured in this video. Basic algebraic expressions, linear equations, tangent circles, and coordinates on a plane test algebra and...\n
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Worksheet
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\n\"Skills\n\n
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\nCurated OER\n
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\nSkills Practice: Area of Circles\n

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\n\nFor Students\n\n7th - 8th\n
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\nTwo practice pages with 10 problems each show circles and give their radii. Learners calculate the area. Answers are provided. \n
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Lesson Plan
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\n\"Circles\n\n
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\nCurated OER\n
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\nCircles to Spheres\n

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\n\nFor Teachers\n\nK - 3rd\n
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\nYoung scholars investigate circles and spheres. In this space shapes lesson, students compare and contrast two-dimensional and three-dimensional shapes. Young scholars investigate the relationship between plane and space shapes.\n
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PPT
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\n\"Circles\n\n
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\nCircles\n

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\n\nFor Teachers\n\n3rd - 4th\n
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\nA very basic presentation on the vocabulary associated with circles has come around. Math whizzes see definitions and examples of the radius, diameter, chord, and central angle of a circle. The last slide says \"practice time,\" but there...\n
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Lesson Plan
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\n\"Altitudes\n\n
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\nCurated OER\n
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\nAltitudes and Orthocenters: Making Connections to the Nine-Point Circle\n

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\n\nFor Teachers\n\n9th - 12th\n
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\nLearners practice various equations for constructing nine-point circles for triangles.\n
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Worksheet
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\n\"Circumference\n\n
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\nCurated OER\n
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\nCircumference and Area of Circles\n

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\n\nFor Students\n\n5th - 6th\n
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\nIn this circumference and area of circles worksheet, students find each to 1 decimal place of 12 given circles. A website reference for additional resources and answer key are given.\n
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Worksheet
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\n\"Circumference\n\n
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\nCurated OER\n
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\nCircumference and Area of Circles\n

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\n\nFor Students\n\n4th - 6th\n
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\nIn this circles worksheet, students use given radius or diameter measurements and find the circumference and area of circles to one decimal place.\n
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Lesson Plan
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\n\"Teaching\n\n
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\nCurated OER\n
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\nTeaching Locomotor Skills and Directions With a Circle Line Dance\n

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\n\nFor Teachers\n\nK - 5th\n
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\nTeach this circle line dance to focus on locomotor skills and directions. Which way is clockwise and which way is counter clockwise? The steps in this dance are very basic: grapevine, sliding, hopping, jumping. Put these steps together...\n
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Worksheet
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\n\"Circle\n\n
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\nCurated OER\n
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\nCircle The Picture That Makes The Pattern\n

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\n\nFor Students\n\n1st - 2nd\n
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\nIn this patterns learning exercise, students circle the picture in the end of the pattern that would continue with that pattern. Students complete 5 patterns.\n
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Lesson Plan
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\n\"Chapter\n\n
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\nHealthy Native Youth\n
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\nChapter 1: Circle of Life\n

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\n\nFor Teachers\n\n6th - 8th\n\nStandards\n
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\nVolition, or will-power, is the focus of a lesson that brings forth the Native symbol, the Circle of Life, to instill the importance of responsible decision-making. Scholars take part in six activities that empower them to reflect on...\n
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Activity
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\n\"Coins\n\n
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\nIllustrative Mathematics\n
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\nCoins in a Circular Pattern\n

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\n\nFor Teachers\n\n9th - 11th\n\nStandards\n
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\nWhat starts as a basic question of division and remainders quickly turns abstract in this question of related ratios and radii. The class works to surround a central coin with coins of the same and different values, then develops a...\n
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Worksheet
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\n\"Circles\n\n
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\nMath Mammoth\n
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\nCircles Graphs and Percents\n

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\n\nFor Students\n\n8th - 10th\n
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\nIn this percent instructional activity, students read and interpret circle graphs. They determine discounts, and match percentages with circle sectors. This one-page instructional activity contains approximately 30 problems.\n
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Worksheet
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\n\"Circles\n\n
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\nMath Mammoth\n
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\nCircles\n

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\n\nFor Students\n\n6th - 8th\n\nStandards\n
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\nYour class examines a series of shapes and discusses how we know that they are not circles. In this way, you begin to acquaint them with the properties and parts of this geometric figure. Then, teach them how to use a protractor to...\n
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Worksheet
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\n\"Easy\n\n
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\nCurated OER\n
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\nEasy Worksheet: Right Triangles and Circles\n

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\n\nFor Students\n\n9th - 12th\n
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\nIn this right triangles and circles worksheet, students solve 4 short answer problems. Students describe a right triangle formed by point on a circle and an angle measure.\n
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Instructional Video3:01
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\n\"What\n\n
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\nCurated OER\n
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\nWhat is a Tangent Line to a Circle?\n

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\n\nFor Teachers\n\n9th - 11th\n
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\nThis video defines what it means for a line to be tangent to a circle. It also defines the term point of tangency and shows how the radius drawn to the point of tangency is perpendicular to the tangent line.\n
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Handout
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\n\"Reading\n\n
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\nNosapo\n
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\nReading Activity: Circle the Right\n

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\n\nFor Students\n\n4th - 12th\n\nStandards\n
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\nFables can teach us about life's morals, but they are also helpful for reviewing verb tense, spelling, and word choice. Three reading passages feature well-known fables, each with several opportunities for students to circle the correct...\n
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Lesson Plan
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\n\"Circle\n\n
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\nPerkins School for the Blind\n
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\nCircle Time\n

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\n\nFor Teachers\n\n1st - 12th\n
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\nOftentimes children or teens with one or more disability are reluctant to participate in whole-group activities. Foster good participation, verbal expression, and social skills through daily circle time activities. Each day you and...\n
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Activity
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\n\"The\n\n
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\nMrs. Burke's Math Page\n
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\nThe Amazing Pi Race\n

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\n\nFor Teachers\n\n7th - 12th\n\nStandards\n
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\nAdd a sense of excitement to your math class with this race across the country. Using their knowledge of all things circular, young mathematicians work in pairs answering a series of pi-related word problems as they hop from one city to...\n
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Instructional Video3:44
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\n\"Perimeter\n\n
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\nCorbett Maths\n
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\nPerimeter of a Semi-Circle\n

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\n\nFor Students\n\n6th - 12th\n\nStandards\n
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\nSurround yourself with knowledge about perimeter. An informative video shows viewers how to find the perimeter of a semicircle. It begins with an explanation of calculating the length of the semicircular arc and ends with adding on the...\n
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Lesson Plan
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\n\"Chapter\n\n
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\nHealthy Native Youth\n
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\nChapter 7: Revisiting the Circle of Life\n

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\n\nFor Teachers\n\n6th - 8th\n\nStandards\n
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\nScholars revisit the Circle of Life to examine positive character traits—mental, physical, spiritual, and emotional. Pupils discuss how those character traits could help them make responsible decisions and not contract HIV/AIDS. Learners...\n
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Lesson Plan
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\n\"Construct\n\n
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\nEngageNY\n
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\nConstruct a Nine-Point Circle\n

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\n\nFor Students\n\n9th - 10th\n\nStandards\n
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\nThere are an infinite number of points on a circle; can you find nine of them? After putting together a nine-point circle, pupils use constructions and their knowledge of triangle segments to determine the center of the circle. Learners...\n
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