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\n\n20\nItems in Unit\n\n
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\n\"Geometry\n\n
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\nLesson Planet Curated\n
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\nGeometry Unit 8: Transformations\n

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\n\nFor Teachers\n\n9th - 12th\n\nStandards\n
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\nFour resources make up the Geometry 8 Unit Module. To begin, scholars review the different types of transformations. They work in more detail with translations by drawing the transformations and writing the algebraic rule. In the second...\n
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\n\n12\nItems in Topic\n\n
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\n\"Math\n\n
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\nLesson Planet Curated\n
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\nMath Antics Geometry Video Lessons\n

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\n\nFor Teachers\n\n4th - 8th\n\nStandards\n
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\nThe point of this collection of 12 videos is to introduce learners to three basic parts of geometry—points, lines, and planes. The presenter provides definitions, shows how to classify shapes, provides examples, and shows how to use...\n
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\n\n6\nItems in Assessment Set\n\n
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\n\"Mathematics\n\n
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\nLesson Planet Curated\n
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\nMathematics Assessment Project: Tests for Middle School\n

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\n\nFor Teachers\n\n6th - 8th\n\nStandards\n
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\nGood assessments are hard to find—assessments that address content standards and fit into standard class periods. The six assessments in the middle school collection are 80-minute forms, divided into two 40-minute sections, and are...\n
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Instructional Video2:01
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\n\"Construct\n\n
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\nCorbett Maths\n
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\nConstruct a 45 Degree Angle\n

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\n\nFor Students\n\n8th - 11th\n\nStandards\n
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\nCreate a 45-degree angle without bisecting an angle. A video shows a method to construct a 45-degree angle without needing to bisect a right angle. By constructing an isosceles right triangle, the presenter constructs a 45-degree angle...\n
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Instructional Video4:47
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\n\"Construct\n\n
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\nConstruct a 30 Degree Angle\n

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\n\nFor Students\n\n8th - 11th\n\nStandards\n
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\nSplit it down the middle. Using the tools of geometric construction, the video shows two different methods of constructing a 30-degree angle. The first method bisects an angle of an equilateral triangle. The second uses the diagonal of a...\n
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Instructional Video2:47
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\n\"Constructing\n\n
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\nCorbett Maths\n
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\nConstructing Equilateral Triangles and 60 Degree Angles\n

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\n\nFor Students\n\n8th - 12th\n\nStandards\n
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\nCreating a 60-degree angle also creates an equilateral triangle. By watching the video, individuals learn the steps required to construct a 60-degree angle. The presentation shows that the process is the same for constructing an...\n
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Instructional Video2:51
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\n\"Construct\n\n
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\nCorbett Maths\n
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\nConstruct a 90 Degree Angle\n

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\n\nFor Students\n\n8th - 12th\n\nStandards\n
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\nThere is more than one way to create a 90-degree angle. Using a compass and a straightedge, the video shows two ways to construct a right angle. The ways include using perpendicular bisectors and circle theorems. To wrap up, pupils...\n
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Printables
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\n\"Amazing\n\n
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\nEd Galaxy\n
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\nAmazing Angles\n

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\n\nFor Teachers\n\n4th - 9th\n\nStandards\n
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\nThree letter-sized mini posters can be displayed in your elementary geometry class when teaching about angles. One provides information about degree measurement and additive properties, and the other two define acute, right, obtuse,...\n
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Worksheet
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\n\"Drawing\n\n
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\nCurated OER\n
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\nDrawing Angles\n

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\n\nFor Students\n\n4th - 5th\n
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\nGet out those protractors! Once geometers can identify obtuse, acute, right, and straight angles, get them to measure and draw their own. There are six boxes here, each with an angle measurement. Learners use a protractor to draw the...\n
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Lesson Plan
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\n\"Angles\n\n
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\nCurated OER\n
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\nAngles\n

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\n\nFor Teachers\n\n4th - 5th\n
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\nFourth and fifth graders investigate angles and name them according to the criteria for obtuse, acute, and right angles. They examine a human-made yarn pattern on the floor of their classroom and identify angles, vertices, and types of...\n
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Worksheet
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\n\"Practice:\n\n
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\nPractice: Measuring Angles and Using a Protractor and More!\n

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\n\nFor Students\n\n4th - 6th\n\nStandards\n
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\nFour fabulous worksheets are included in this resource, all having to do with the measurement of angles. On the first, anglers will use a protractor to determine the degrees of 10 different angles. An arc is drawn on each. On the second,...\n
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Lesson Plan
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\n\"Triangle's\n\n
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\nTriangle's Interior Angles\n

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\n\nFor Teachers\n\n7th - 9th\n\nStandards\n
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\nGiven a pair of parallel lines and a triangle in between, geometers prove that the sum of the interior angles is 180 degrees. This quick quest can be used as a pop quiz or exit ticket for your geometry class.\n
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Lesson Plan
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\n\"Basic\n\n
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\nCurated OER\n
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\nBasic Geometry ... A Pathway to Angles\n

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\n\nFor Teachers\n\n9th\n
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\nHelp 9th graders identify lines, points, rays, and planes in geometry. They  practice identifying, measuring, and drawing angles of different degrees. This is a fundamental lesson to help students learn the building blocks of geometry.\n
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Lesson Plan
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\n\"Solving\n\n
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\nEngageNY\n
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\nSolving for Unknown Angles Using Equations II\n

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\n\nFor Teachers\n\n7th\n\nStandards\n
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\nThe third activity in the series of 29 asks learners to identify types of angles to verify angle relationships. They find unknown measures using vertical, adjacent, complementary, supplementary, and 360-degree angles.\n
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Lesson Plan
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\n\"Finding\n\n
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\nIllustrative Mathematics\n
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\nFinding an Unknown Angle\n

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\n\nFor Teachers\n\n4th - 6th\n\nStandards\n
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\nTeach your class how to apply their knowledge of geometry as they explore the unknown. In order to find an unknown angle, students must understand that rectangles have four interior right angles, that right angles have 90 degrees, and...\n
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Instructional Video6:09
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\n\"Drawing\n\n
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\nCorbett Maths\n
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\nDrawing Angles\n

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\n\nFor Students\n\n4th - 12th\n\nStandards\n
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\nWhat's your angle? A short video describes how to draw angles using a protractor. It goes through three examples: a 35-degree angle, a 105-degree angle, and a 215-degree angle. A worksheet gives some additional problems to consider. \n
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Instructional Video3:20
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\n\"What\n\n
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\nCurated OER\n
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\nWhat are Supplementary Angles?\n

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\n\nFor Teachers\n\n6th - 8th\n
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\nWhat are supplementary angles? They are two angles that when added together make 180 degrees on a straight angle line. Hard to picture that? Then watch this video and see how the instructor illustrates this on a diagram.\n
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Instructional Video3:41
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\n\"How\n\n
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\nHow Do You Use Supplementary Angles to Find a Missing Angle?\n

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\n\nFor Teachers\n\n6th - 10th\n
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\nHow can a straight line be called a straight angle? Can angles be combined to form a straight angle? Yes, supplementary angles can be combined to make a straight angle and that is how one can find the value of a missing angle. Take a...\n
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Instructional Video4:47
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\n\"Common\n\n
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\nCurated OER\n
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\nCommon Angle Measures\n

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\n\nFor Teachers\n\n7th - 9th\n
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\nUsing a circle with clock like hands, the tutor explains common angle measurements. She shows that a full circular rotation equals 360 degrees, a quarter rotation equals 90 degrees, a three-quarters rotation equals 270 degrees, and a...\n
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Instructional Video9:17
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\n\"Angles\n\n
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\nMath Antics\n
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\nAngles and Degrees\n

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\n\nFor Students\n\n4th - 8th\n\nStandards\n
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\nHow do you determine the size of an angle? Pupils learn about degrees and how to measure the size of an angle. The video associates the measurements to types of angles such as acute, obtuse, and right. The additive properties of angle...\n
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Instructional Video3:20
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\nWhat are Complementary Angles?\n

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\nSupplementary, obtuse, acute, complementary angles. It's good to know what all of these mean, but let's focus on one at a time. Complementary angles always add up to 90 degrees. So if given one angle in a complementary angle problem, the...\n
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Instructional Video4:19
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\nHow Do You Find Angle Measures for Adjacent Angles?\n

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\n\nFor Teachers\n\n6th - 10th\n
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\nTwo angles with given values are adjacent. Together they are 172.5 degrees. How do you find the degree of one of the angles? You will have to write an algebraic equation with the given information to solve for the value of the variable....\n
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Instructional Video4:55
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\nHow Do You Find Angle Measures for Adjacent Angles?\n

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\n\nFor Teachers\n\n6th - 12th\n
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\nTwo angles with given values are adjacent. Together they are 172.5 degrees. How do you find the degree of one of the angles? You will have to write an algebraic equation with the given information to solve for the value of the variable....\n
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Instructional Video5:22
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\n\"What\n\n
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\nWhat is an Angle?\n

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\n\nFor Teachers\n\n6th - 12th\n
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\nAn angle is formed when two rays share a common endpoint. Want to know more about angles? There are a lot of terms in this lesson. You might have to watch it two or even three times to make sure you understand all the terms. I recommend...\n
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