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\n\n29\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 9: Area of Polygons\n

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\n\nFor Teachers\n\n9th - 12th\n\nStandards\n
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\nSix lessons make up the Geometry Unit 9: Area of Polygons unit module. Pupils review the formulas for finding the area of parallelograms and triangles. They apply previous learning of trigonometric ratios and the Pythagorean Theorem to...\n
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\n\n9\nItems in Assessment Set\n\n
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\n\"7th\n\n
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\nLesson Planet Curated\n
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\n7th grade Math Remediation\n

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\n\nFor Students\n\n7th\n\nStandards\n
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\nGoal and Objectives for TEKS 7.5.C & 7.9.C: Students will solve mathematical and real-world problems involving similar shape and scale drawings; and determine the area of composite figures containing combinations of rectangles,...\n
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\n\n12\nItems in Course\n\n
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\n\"Flipped\n\n
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\nLesson Planet Curated\n
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\nFlipped Math: Geometry\n

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\n\nFor Students\n\n9th - 12th\n\nStandards\n
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\nImagine taking a complete geometry course remotely! Eleven units make up the My Geometry course. Each unit follows the Flipped-Mastery cycle of learning, divided into two semesters. Pupils watch and take notes on a video that details the...\n
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\n\n7\nItems in Assessment Set\n\n
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\n\"CORE\n\n
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\nLesson Planet Curated\n
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\nCORE Math Performance Assessment Modules: Grade 3\n

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\n\nFor Teachers\n\n3rd\n\nStandards\n
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\nAssess the math skills of third graders by casting them in the roles of cookie makers, data collectors, farmers, gardeners, delivery people, theatre attendees, muralists, and window washers. The CORE Math Performance Assessments in this...\n
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\n\n37\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 5: Quadrilaterals and Polygons\n

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\n\nFor Students\n\n9th - 12th\n\nStandards\n
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\nOne's knowledge of angles should measure up to expectations. Scholars watch a video to learn about angles in polygons. They first see how to partition a polygon into triangles to find the sum of the interior angle measures. They then...\n
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\n\n38\nItems in Assessment Set\n\n
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\n\"Balanced\n\n
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\nLesson Planet Curated\n
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\nBalanced Assessment: Advanced High School Math Packet\n

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\n\nFor Teachers\n\n11th - 12th\n\nStandards\n
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\nNineteen resources make up the Balanced Assessment: Advanced High School Math Packet designed to test learners' knowledge in Algebra II, Geometry, and Pre-Calculus classes. To demonstrate their understanding of concepts related to these...\n
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\n\n20\nItems in Assessment Set\n\n
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\n\"High\n\n
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\nLesson Planet Curated\n
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\nHigh School Balanced Packet 2 Assessment Tasks\n

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\n\nFor Students\n\n9th - 12th\n\nStandards\n
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\nGood assessments can be hard to find and difficult to formulate. Designed as a collection of mathematics assessment tasks, the 20 resources in this packet can also be used as lesson openers, a review, or extra practice. The open-ended...\n
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Lesson Plan
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\n\"What\n\n
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\nIllustrative Mathematics\n
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\nWhat is a Trapezoid? (Part 2)\n

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\n\nFor Teachers\n\n4th - 6th\n\nStandards\n
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\nThis collaborative activity investigates the meaning of a trapezoid and a parallelogram. It begins by presenting two different definitions of a trapezoid. Learners are to reason abstractly the difference between the two definitions and...\n
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Instructional Video4:19
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\nHow Do You Find the Area of a Trapezoid?\n

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\n\nFor Teachers\n\n7th - 9th\n
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\nTrapezoids can be tricky! Break down the process of finding the area of a trapezoid with an engaging math video. Learners explore area formula and shown exactly how to plug in information, solve, and simplify. \n
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\n\nGet Free Access\n\nSee Review\n
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Instructional Video4:55
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\nHow Do You Find the Area of a Trapezoid?\n

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\n\nFor Teachers\n\n6th - 12th\n
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\nTrapezoids can be tricky. Break down the process of finding the area of a trapezoid with this video! Viewers are given information about the area formula and shown exactly how to plug in information, solve, and simplify. This is a...\n
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Instructional Video5:27
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\nWhat is a Trapezoid?\n

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\nThere are many types of parallelograms, each having specific properties. A trapezoid is a special type of quadrilateral in that it has one pair, and only one pair, of parallel lines. Take a look at some of the other quadrilaterals and...\n
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Instructional Video4:04
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\n\"Trapezoids:\n\n
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\nCK-12 Foundation\n
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\nTrapezoids: Lesson\n

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\n\nFor Students\n\n8th - 11th\n
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\nUsing the definition of a trapezoid, the segment within a large playlist on basic geometry explains other properties of trapezoids. The video introduces the special properties held by isosceles trapezoids.\n
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Instructional Video7:21
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\n\"Area\n\n
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\nKrista King Math\n
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\nArea of Trapezoids\n

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\n\nFor Students\n\n9th - 12th\n\nStandards\n
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\nRectangles, parallelograms, and now trapezoids — so many quadrilaterals! Building on the previous lessons in the series, the video introduces the formula for the area of a trapezoid. The instructor shows images of trapezoids and...\n
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Instructional Video1:37
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\nHow to Find the Area of a Trapezoid\n

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\n\nFor Teachers\n\n3rd - 5th\n
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\nWhat a great resource! Two learners lead viewers through the process of finding the area of a trapezoid. It's a visual approach that your class is bound to remember.\n
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Instructional Video4:28
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\n\"Area\n\n
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\nArea of a Trapezoid\n

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\n\nFor Teachers\n\n6th - 8th\n
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\nFind the area of a trapezoid. The instructor goes through a discussion of defining a trapezoid, the ways to identify the height and base, and then calculates the area of the trapezoid. This visual exploration should solidify this concept...\n
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\n\nGet Free Access\n\nSee Review\n
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Interactive
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\n\"Trapezoidal\n\n
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\nCK-12 Foundation\n
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\nTrapezoidal and Midpoint Approximations: Area of a Skirt\n

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\nWhen are trapezoids better than rectangles? Using trapezoids pupils approximate the area of fabric defined by a function. Just like with rectangles, learners realize the more trapezoids the more accurate the approximation. Scholars use...\n
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Instructional Video8:51
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\n\"Areas\n\n
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\nAnywhere Math\n
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\nAreas of Trapezoids\n

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\n\nFor Students\n\n6th - 9th\n\nStandards\n
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\nDon't get tripped up by trapezoids. An enlightening video first shows how to derive the formula for the area of a trapezoid by partitioning the figure and rearranging it into a triangle. It then works through two examples of finding the...\n
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Instructional Video6:02
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\nWhat is the Formula for the Area of a Trapezoid?\n

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\n\nFor Teachers\n\n6th - 10th\n
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\nMake a parallelogram out of two trapezoids to find the area of one trapezoid? Sounds pretty complicated. Well, it's not complicated but there are a lot of steps. The instructor does a pretty good job of diagramming and explaining just...\n
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Instructional Video6:54
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\nHow Do You Find the Height of a Trapezoid if You Know the Area and Bases?\n

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\n\nFor Teachers\n\n5th - 8th\n
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\nFind the height of a trapezoid given the values of the two bases and the area. First write out the formula for the area of a trapezoid. Then identify all the variables and match up the given values. Now plug the values into the formula....\n
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Worksheet
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\nMt. San Antonio Collage\n
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\nThe Trapezoid\n

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\n\nFor Students\n\n9th - 12th\n\nStandards\n
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\nEnjoy this nicely organized worksheet that puts together multiple problems regarding trapezoid proofs. The resource can be used as a guide that begins with proving properties and ends with solving for measures of line segments.\n
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Lesson Plan
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\n\"What\n\n
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\nIllustrative Mathematics\n
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\nWhat is a Trapezoid? (Part 1)\n

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\n\nFor Teachers\n\n3rd - 5th\n\nStandards\n
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\nChallenge your class to construct a definition for trapezoids. Looking at four examples and four non-examples, students individually create definitions and use them to classify an unknown shape. Allow for small group and whole-class...\n
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\nThe Trapping of Trapezoids\n

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\n\nFor Teachers\n\n6th - 8th\n
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\nThis is a nice hands-on activity where young geometers create trapezoids and calculate their area by looking at areas of quadrilaterals and triangles. \n
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Instructional Video4:23
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\n\"Area\n\n
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\nCK-12 Foundation\n
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\nArea and Perimeter of Trapezoids: Lesson\n

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\n\nFor Students\n\n6th - 11th\n\nStandards\n
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\nWith a little averaging, a trapezoid becomes a parallelogram. The section of an extensive geometry playlist shows how to derive the formula for the area of a trapezoid by changing it into a parallelogram. Using the formula, the video...\n
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Instructional Video5:20
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\nFind the Height of a Trapezoid Given Area (Example)\n

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\n\nFor Students\n\n7th - 11th\n\nStandards\n
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\nReach new heights in your geometry knowledge. An educational video shows viewers how to find the height of a trapezoid given the area. They watch as the narrator works through an example of such a problem. \n
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