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Unit Plan
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\n\"Transformations\n\n
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\nCurated OER\n
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\nTransformations in the Coordinate Plane\n

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\n\nFor Teachers\n\n9th - 12th\n\nStandards\n
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\nYour learners connect the new concepts of transformations in the coordinate plane to their previous knowledge using the solid vocabulary development in this unit. Like a foreign language, mathematics has its own set of vocabulary terms...\n
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Unit Plan
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\n\"Module\n\n
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\nMathematics Vision Project\n
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\nModule 3: Geometric Figures\n

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\n\nFor Teachers\n\n9th - 12th\n\nStandards\n
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\nIt's just not enough to know that something is true. Part of a MVP Geometry unit teaches young mathematicians how to write flow proofs and two-column proofs for conjectures involving lines, angles, and triangles. \n
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Interactive
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\n\"Bisectors\n\n
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\nCK-12 Foundation\n
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\nBisectors of Line Segments and Angles: Cut a Line\n

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\n\nFor Students\n\n9th - 12th\n
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\nGeometric constructions build relationships —by simply manipulating simple tools. An interactive lesson presents a completed construction of a segment bisector and has learners analyze the important aspects. Ultimately, they should be...\n
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Instructional Video3:02
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\n\"Isosceles\n\n
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\nCK-12 Foundation\n
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\nIsosceles Triangles: Lesson\n

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\n\nFor Students\n\n8th - 11th\n\nStandards\n
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\nTwo sides give us two angles. A segment of a playlist on basic geometry revisits isosceles triangles. The presentation explains several properties and theorems related to isosceles triangles.\n
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Instructional Video4:47
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\n\"Construct\n\n
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\nCorbett Maths\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 Video10:50
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\n\"Unit\n\n
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\nFlipped Math\n
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\nUnit 1 Review: Tools for Geometry\n

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\n\nFor Students\n\n9th - 12th\n\nStandards\n
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\nPupils review the vocabulary, formulas, and postulates from the opening unit in Geometry. Individuals use these to solve a problem set that requires learners to apply algebraic skills along with providing reasons within a proof. Scholars...\n
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Lesson Plan
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\n\"Pointzero:\n\n
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\nBowland\n
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\nPointzero: Confined\n

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\n\nFor Teachers\n\n6th - 8th\n\nStandards\n
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\nGroups plan their escape carefully. Three three-tiered puzzles help a story character escape their situation, each involving integer sequences, transformations, and geometric constructions. The teacher resource includes...\n
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Assessment
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\n\"In\n\n
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\nConcord Consortium\n
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\nIn Oz We Tryst\n

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\n\nFor Students\n\n9th - 11th\n\nStandards\n
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\nThe shortest distance from point A to point B is a straight line, but measuring distance gets more complicated when there are three points! Given the location of three friends, individuals determine the best point for all three friends...\n
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Instructional Video7:19
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\n\"Loci\n\n
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\nCorbett Maths\n
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\nLoci Part 2\n

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\nCloser to this point and farther from that one. Continuing with loci problems, a short video shows how to work problems that are not straightforward. The presenter works loci problems that result in a region that meets several criteria.\n
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Instructional Video7:24
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\n\"Loci\n\n
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\nCorbett Maths\n
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\nLoci Part 1\n

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\n\nFor Students\n\n6th - 12th\n
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\nWhere can it go? The first video on loci develops a definition and provides some quick sketches of the loci of all points with given characteristics. The presenter does an example of the loci of points a given distance from an L shape.\n
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Assessment
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\n\"Loci\n\n
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\nMathed Up!\n
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\nLoci and Constructions\n

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\n\nFor Students\n\n8th - 11th\n\nStandards\n
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\nA General Certificate of Secondary Education math review has class members make basic constructions. Using a protractor and a ruler along with a compass, pupils develop drawings of triangles with given measurements. Scholars use their...\n
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Assessment
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\n\"Detective\n\n
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\nConcord Consortium\n
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\nDetective Stories\n

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\n\nFor Students\n\n9th - 12th\n\nStandards\n
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\nThe truth will always come out. A short performance task has learners considering a witness statement given to a detective. They apply special line segments in triangles and Ceva's Theorem to prove that the witness is actually lying. \n
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Lesson Plan
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\n\"Special\n\n
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\nCurated OER\n
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\nSpecial Segments in a Triangle\n

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\n\nFor Teachers\n\n10th\n
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\nIn this geometry worksheet, 10th graders review the vocabulary associated with the special segments of a triangle and the associated points of concurrency and solve problems in which they find the indicated missing angle or...\n
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Lesson Plan
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\n\"Isosceles\n\n
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\nCurated OER\n
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\nIsosceles Triangles\n

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\n\nFor Teachers\n\n9th - 10th\n
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\nStudents identify the properties of an isosceles triangle. In this geometry lesson, students find the midpoint, median and angle bisector of a triangle. They construct angle bisectors and measure missing angles.\n
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Lesson Plan
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\n\"Incenter\n\n
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\nCurated OER\n
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\nIncenter of a Triangle\n

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\n\nFor Teachers\n\n10th\n
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\nTenth graders find the incenter of a triangle. For this geometry lesson, 10th graders define the way to create an incenter with an angle bisector. They differentiate between incenter and incircle.\n
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Lesson Plan
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\n\"Heron's\n\n
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\nCurated OER\n
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\nHeron's Formula\n

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\n\nFor Teachers\n\n9th - 10th\n
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\nStudents use Heron's formula to calculate the area of a triangle. For this geometry lesson, students use three different methods to solve the area of a triangle. They find and construct the incentor and angle bisector of a triangle.\n
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Lesson Plan
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\n\"IGD:\n\n
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\nCurated OER\n
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\nIGD: Perpendicular Bisector\n

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\n\nFor Teachers\n\n9th - 12th\n
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\nStudents draw perpendicular bisectors.  In this perpendicular bisectors lesson, students identify the perpendicular bisector in a polygon.  They use web tools to create and measure perpendicular bisectors.  Students...\n
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Worksheet
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\n\"Angle\n\n
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\nCurated OER\n
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\nAngle Constructions\n

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\n\nFor Students\n\n6th\n
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\nIn this angle constructions worksheet, 6th graders solve and complete 4 various types of problems. First, they construct a perpendicular bisector of two points. Then, students construct an angle bisector for the angle shown. In addition,...\n
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Lesson Plan
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\n\"Incenter\n\n
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\nCurated OER\n
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\nIncenter of a Triangle\n

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\n\nFor Teachers\n\n10th\n
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\nTenth graders explore the properties of the incenter of a triangle. In this geometry lesson, 10th graders construct a triangle and the angle bisectors of each angle. The dynamic properties of Cabri Jr. allow students to locate and...\n
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Lesson Plan
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\n\"Pedal\n\n
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\nCurated OER\n
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\nPedal Triangles\n

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\n\nFor Teachers\n\n8th - 10th\n
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\nStudents identify the properties and theorems of triangles. In this geometry instructional activity, students construct angle bisectors using a compass and straight edge. They identify triangular similarity and congruency.\n
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Worksheet
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\n\"Congruent\n\n
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\nCurated OER\n
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\nCongruent Triangles\n

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\n\nFor Students\n\n10th\n
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\nIn this congruent triangles worksheet, 10th graders solve and complete 13 different problems. First, they use the illustrated congruent triangles to show other congruency in each problem. Then, students determine and prove the angle...\n
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Lesson Plan
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\n\"Hospital\n\n
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\nCurated OER\n
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\nHospital Locator\n

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\n\nFor Teachers\n\n7th - 9th\n
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\nStudents apply properties of triangles to the real world. In this geometry lesson plan, students identify the median and angle bisectors of triangles. They plan the appropriate are to place a new medical center based on their knowledge...\n
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Lesson Plan
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\n\"Constructing\n\n
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\nCurated OER\n
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\nConstructing Perpendiculars\n

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\n\nFor Teachers\n\n9th - 10th\n
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\nStudents construct perpendicular lines. In this geometry lesson, students use a compass and straight edge to do construction. They start from a point to a line.\n
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Worksheet
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\n\"Geometry\n\n
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\nCurated OER\n
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\nGeometry Worksheet\n

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\n\nFor Students\n\n10th\n
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\nIn this geometry worksheet, 10th graders solve for the missing angles using the angles theorems. There are 3 questions asking about angle bisectors and missing angles.\n
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