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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\n29\nItems in Unit\n\n
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\n\"Geometry\n\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\n37\nItems in Unit\n\n
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\n\"Geometry\n\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 1 Assessment Tasks\n

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\n\nFor Students\n\n9th - 12th\n\nStandards\n
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\nAre you looking for assessment tasks for Algebra 1, Algebra 2, or geometry? Check out this collection of 20 assessment tasks designed for high schoolers. Problems are presented with an open-ended format allowing students to use multiple...\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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\n\n9\nItems in Topic\n\n
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\n\"Grade\n\n
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\nLesson Planet Curated\n
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\nGrade 7, Claim 1: Concepts and Procedures Item Slide Shows\n

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\n\nFor Teachers\n\n7th\n\nStandards\n
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\nPrepare seventh graders for end-of-year assessments with a collection of nine resources packed with teacher and student-friendly slides featuring problems that address the A-I competencies. Questions are modeled after Smarter Balanced...\n
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Instructional Video3:02
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\n\"Area\n\n
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\nArea of a Rectangle - Geometry Help\n

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\n\nFor Teachers\n\n4th - 7th\n
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\nHow on earth is one to find the area of a rectangle when he doesn't know the width? Using the diagonal of the rectangle, the length, and the Pythagorean Theorem the missing side is determined and the area is discovered. This clip is...\n
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\n\"Overlapping\n\n
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\nIllustrative Mathematics\n
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\nOverlapping Rectangle\n

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\n\nFor Teachers\n\nK - 3rd\n\nStandards\n
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\nChallenge young mathematicians' ability to compose and decompose shapes with this fun geometry puzzle. The goal is simple, locate all of the rectangles shown in a picture of three overlapping rectangles. Perform this activity as a whole...\n
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\n\"Congruent\n\n
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\nCurated OER\n
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\nCongruent Rectangles\n

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\n\nFor Teachers\n\n7th - 9th\n\nStandards\n
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\nVery simply, geometers examine a pair of rectangles on graph paper and find a translation and rotation to demonstrate their congruence. A couple of questions follow to stimulate critical thinking about other possibilities.\n
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\n\nGet Free Access\n\nSee Review\n
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Instructional Video3:46
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\nHow Do You Find the Length of a Rectangle if You Know its Width and Area?\n

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\n\nFor Teachers\n\n6th - 12th\n
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\nLearn how to use the formula for area to solve a problem about a rectangle. The demonstrator shows how to plug in the known values of a rectangle, and then how to use the formula for area to solve for the variable in question.\n
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\n\"Exploring\n\n
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\nVirginia Department of Education \n
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\nExploring 3-D Geometry\n

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\n\nFor Teachers\n\n6th - 8th\n\nStandards\n
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\nTake young mathematicians on an exploration of the world of 3-D geometry with this seven-lesson unit. After first defining the terms perimeter, area, and volume and how they apply to the real world, students continue on...\n
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PPT
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\n\"Geometry\n\n
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\nCurated OER\n
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\nGeometry\n

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\n\nFor Teachers\n\nK - 2nd\n
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\nWhat a fun activity for younger learners! Using this resource, they can discuss the attributes of squares, rectangles, triangles, circles, and ovals, and also engage in a motivating activity. For those learning about simple shapes, this...\n
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\nMath Worksheets Land\n
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\nThe Area of Rectangles - Guided Lesson\n

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\n\nFor Students\n\n2nd - 3rd\n\nStandards\n
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\nGeometry novices will enjoy this approach to finding area, as they aren't required to include units or a formula. The main objective here is to segment a rectangle into columns and rows to create squares, which then are used to find the...\n
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\n\"Connecting\n\n
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\nConnecting Algebra and Geometry Through Coordinates\n

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\n\nFor Teachers\n\n9th - 10th\n\nStandards\n
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\nThis unit on connecting algebra and geometry covers a number of topics including worksheets on the distance formula, finding the perimeter and area of polynomials, the slope formula, parallel and perpendicular lines, parallelograms,...\n
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Interactive
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\n\"Area\n\n
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\nCK-12 Foundation\n
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\nArea Sums: Estimation with Rectangles\n

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\n\nFor Students\n\n11th - Higher Ed\n
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\nThe more rectangles, the better the estimate. Using the interactive, pupils explore estimating the area under a curve using left-hand sums. Learners respond to challenge questions on how to get better estimates using the same technique.\n
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Instructional Video3:21
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\n\"Area\n\n
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\nCK-12 Foundation\n
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\nArea and Perimeter of Rectangles: Lesson\n

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\n\nFor Students\n\n4th - 9th\n\nStandards\n
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\nAround and in—take a different look at rectangles. A portion of a basic geometry playlist discusses the area and perimeters of rectangles. Using the formulas, the presentation works perimeter and area examples with rectangles and squares.\n
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\n\nGet Free Access\n\nSee Review\n
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Worksheet
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\n\"Area\n\n
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\nK6 Math\n
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\nArea - Square and Rectangles\n

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\n\nFor Students\n\n3rd - 4th\n\nStandards\n
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\nAfter third and fourth graders understand how to find the area of squares and rectangles, give them this sheet for practice. There are three squares and three rectangles included here, but there isn't a ton of workspace. \n
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\n\"Rectangles\n\n
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\nEngageNY\n
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\nRectangles Inscribed in Circles\n

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\n\nFor Teachers\n\n9th - 10th\n\nStandards\n
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\nPutting a rectangular object into a circular one—didn't the astronauts on Apollo 13 have to do something like this? Learners first construct the center of a circle using perpendiculars. They then discover how to inscribe a rectangle in a...\n
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\nAwesome Area - Geometry and Measurement\n

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\n\nFor Teachers\n\n2nd - 4th\n\nStandards\n
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\nBreak out those math manipulatives, it's time to teach about area! Capturing the engagement of young mathematicians, this three-lesson series supports children with learning how to measure the area of squares, rectangles, and other...\n
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\nThe Area of Rectangles\n

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\n\nFor Teachers\n\n2nd - 4th\n
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\nIntended for beginners to geometry, an area of a rectangle problem has scholars draw out the units within the shape. They segment it into four rows and six columns to determine how many squares the rectangle is made of and, eventually,...\n
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\n\"Circles,\n\n
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\nCurated OER\n
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\nCircles, Squares, Triangles and Rectangles In Our World\n

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\n\nFor Teachers\n\nPre-K - 2nd\n
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\nHere is an engaging geometry lesson which has young scholars identify the properties of shapes and cut shapes out of magazines. They make cookies using cookie cutters in various shapes.\n
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\n\"Is\n\n
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\nCurated OER\n
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\nIs This a Rectangle?\n

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\n\nFor Teachers\n\n8th - 10th\n\nStandards\n
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\nHow do you show that something is a rectangle? This activity starts with four coordinate points and asks young geometers to explain whether they create a rectangle. Knowledge from both geometry and algebra come into play here, as well...\n
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Instructional Video4:30
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\nHow Do You Find the Perimeter of a Rectangle?\n

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\n\nFor Teachers\n\n3rd - 5th\n
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\nThe teacher illustrates a diagram to help you learn about perimeter. First, she adds the sides together to get the perimeter. Then, she shows how to use the perimeter formula to make it a bit simpler.\n
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\n\nGet Free Access\n\nSee Review\n
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