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\n\n24\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 4: Triangle Congruence\n

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\n\nFor Teachers\n\n9th - 12th\n\nStandards\n
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\nThe Geometry Unit 4: Triangle Congruence unit module contains five lessons—each with a video, teacher reference, practice packets, solutions, and corrective assignments. To begin, scholars review the types of triangles, then investigate...\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\nGet Free Access\n
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\n\n35\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 3: Parallel and Perpendicular Lines\n

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\n\nFor Teachers\n\n9th - 12th\n\nStandards\n
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\nThe Geometry Unit 3: Parallel and Perpendicular Lines Unit Module contains seven lessons, each with a video, teacher reference, practice packets and solutions, and corrective assignments. In the first lesson, pupils learn eight...\n
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\n\n30\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 7: Right Triangles\n

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\n\nFor Students\n\n9th - 12th\n\nStandards\n
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\nSix lessons comprise the Geometry Unit 7: Right Triangles unit module. In the first lesson, pupils review the Pythagorean Theorem and determine how to use the converse to determine whether a triangle is right, obtuse, or acute. Next,...\n
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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\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\n26\nItems in Unit\n\n
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\n\"Geometry\n\n
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\nGeometry Unit 11: Circles\n

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\n\nFor Students\n\n9th - 12th\n\nStandards\n
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\nThe five resources in the Geometry Unit 11: Circles Unit Module are designed for the flipped classroom. Pupils watch videos that show how to apply concepts about circles, tangents, congruent chords and arcs, and intercepting arcs....\n
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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 6: Similar Figures\n

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\n\nFor Teachers\n\n9th - 12th\n\nStandards\n
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\nSimilar figures are the topic of Geometry Unit 6. Each of the four resources in the unit module contains a video, teacher reference, practice packets, solutions, and corrective assignments. In the first lesson, pupils learn the...\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 College & Career Readiness - High School\n

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\n\nFor Teachers\n\n9th - 12th\n
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\nA collection of six tests are designed to assess the College and Career Readiness of high school algebra I, algebra II, geometry, and statics and probability learners. Each assessment includes the test form and scoring and comes in 40,...\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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Lesson Plan
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\n\"Thales’\n\n
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\nEngageNY\n
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\nThales’ Theorem\n

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\n\nFor Teachers\n\n9th - 10th\n\nStandards\n
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\nIsn't paper pushing supposed to be boring? Learners attempt a paper-pushing puzzle to develop ideas about angles inscribed on a diameter of a circle. Learners then formalize Thales' theorem and use geometric properties to develop a proof...\n
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\n\nGet Free Access\n\nSee Review\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 Video9:39
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\n\"Distance\n\n
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\nKhan Academy\n
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\nDistance Formula, Analytic Geometry, Geometry\n

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\n\nFor Students\n\n7th - 11th\n\nStandards\n
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\nExplaining the distance formula as \"an application of the Pythagorean Theorem\" might relieve some of your young mathematicians who are scratching their heads at all the new concepts. Sal demonstrates how to take the distance between any...\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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\n\nGet Free Access\n\nSee Review\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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\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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Lesson Plan
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\n\"Pythagorean\n\n
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\nWest Contra Costa Unified School District\n
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\nPythagorean Theorem and Its Converse\n

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\n\nFor Teachers\n\n9th - 12th\n\nStandards\n
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\nChallenge scholars to prove the Pythagorean Theorem geometrically by using a cut-and-paste activity. They then must solve for the missing sides of right triangles.\n
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\n\nGet Free Access\n\nSee Review\n
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Instructional Video3:02
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\n\"Area\n\n
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\nCurated OER\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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Instructional Video2:30
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\n\"Triangle\n\n
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\nCK-12 Foundation\n
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\nTriangle Sum Theorem: Lesson\n

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\n\nFor Students\n\n6th - 10th\n\nStandards\n
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\nThe measures all add up. The presentation, part of a helpful playlist on geometry, provides the statement of the Triangle Sum Theorem. Using the theorem, the video shows how to find the missing measure of an angle.\n
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\n\nGet Free Access\n\nSee Review\n
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Instructional Video3:35
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\n\"Applications\n\n
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\nCK-12 Foundation\n
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\nApplications of the Pythagorean Theorem: Lesson\n

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\n\nFor Students\n\n8th - 11th\n\nStandards\n
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\nThe Pythagorean Theorem works for something other than right triangles; show your class all it can do. Using information from the Pythagorean Theorem, the video shows how to determine whether a triangle is an acute or obtuse triangle....\n
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Instructional Video2:40
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\n\"The\n\n
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\nCK-12 Foundation\n
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\nThe Third Angle Theorem: Lesson\n

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\n\nFor Students\n\n8th - 11th\n\nStandards\n
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\nIf two sets of angles are equal, the third set is too. An informative portion of a playlist on geometry develops the Third Angle Theorem for triangles. Using the theorem, the presenter shows how to determine the measure of missing angles...\n
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\n\nGet Free Access\n\nSee Review\n
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Instructional Video3:51
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\n\"ASA\n\n
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\nCK-12 Foundation\n
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\nASA and AAS Triangle Congruence Lesson\n

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\n\nFor Students\n\n8th - 11th\n\nStandards\n
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\nThe location of the side makes a difference. One of the videos in a geometry playlist introduces angle-side-angle and angle-angle-side congruence relationships. Using drawings, the video shows how these two congruence statements are...\n
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Instructional Video1:35
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\n\"Understanding\n\n
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\nCurated OER\n
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\nUnderstanding the Pythagorean Theorem\n

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\n\nFor Teachers\n\n5th - 7th\n
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\nWho is Pythagoras and what is the Pythagorean Theorem? Ben knows and he's made a video all about it! The Pythagorean Theorem is defined, the procedure is demonstrated, and an example is provided. Ben also mentions how the theorem is used...\n
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Printables
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\n\"Eight\n\n
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\nMr. Williams Maths\n
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\nEight Circle Theorems Page\n

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\n\nFor Teachers\n\n8th - 12th\n\nStandards\n
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\nYour learners will find these circle theorems nicely organized with diagrams included that present the geometric relationships between the circle circumference, chords, central and circumference angles and tangents.\n
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\n\nGet Free Access\n\nSee Review\n
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