Sophia Learning
Sophia: Coordinate Geometry of Parallelograms
This lesson will demonstrate how to use slope, midpoint, and distance formulas to determine from the coordinates of the vertices if a quadrilateral is a parallelogram in a coordinate plane. Students can check their understanding with an...
Khan Academy
Khan Academy: Geometry: Ca Geometry: Triangles and Parallelograms
In this video lesson [11:14], the instructor demonstrates solutions to problems #21-25 of California Geometry released state test questions. Problems address understanding of the triangle inequality theorem, angle relationships with...
Sophia Learning
Sophia: Vsepr: Basic Geometry: Lesson 2
This lesson will illustrate the five basic shapes of simple molecules. It is 2 of 2 in the series titled "VSEPR: Basic Geometry."
Sophia Learning
Sophia: Language of Geometry
This video lesson defines and provides an example of common geometry terms including theorem, postulate, axiom, and corollary.
Math Planet
Math Planet: Geometry: Triangles
Discussion of triangles through the use of examples and a video lesson. [1:08]
Sophia Learning
Sophia: Coordinate Geometry of Rectangles
This detailed lesson uses slope, midpoint, and distance formulas to prove a quadrilateral is a rectangle in the coordinate plane.
Sophia Learning
Sophia: Vsepr: Basic Geometry
A narrated lesson introducing the five basic shapes of simple molecules. [2:47]
Sophia Learning
Sophia: Cpctc: Lesson 4
This video lesson [6:45] will demonstrate the use of CPCTC in triangle congruencey proofs. It is 4 of 4 in the series titled "CPCTC."
Sophia Learning
Sophia: Cpctc: Lesson 1
This lesson [8:19] will demonstrate the use of CPCTC in triangle congruency proofs. It is 1 of 4 in the series titled "CPCTC."
Sophia Learning
Sophia: Vsepr: Linear Molecules: Lesson 2
This lesson will explore linear shaped molecules. It is 2 of 2 in the series titled "VSEPR: Linear Molecules."
Sophia Learning
Sophia: Vsepr: Linear Molecules: Lesson 1
This lesson will explore linear shaped molecules. It is 1 of 2 in the series titled "VSEPR: Linear Molecules."
Sophia Learning
Sophia: Vsepr: Trigonal Pyramidal Molecules: Lesson 1
This lesson will explore trigonal pyramidal shaped molecules. It is 1 of 2 in the series titled "VSEPR: Trigonal Pyramidal Molecules."
Sophia Learning
Sophia: Vsepr: Bent Molecules: Lesson 2
This lesson will explore bent shaped molecules including bond angles. It is 2 of 2 in the series titled "VSEPR: Bent Molecules."
Massachusetts Institute of Technology
Mit: Blossoms: The Pythagorean Theorem: Geometry's Most Elegant Theorem
Use this video to help teach the Pythagorean Theorem. The video can be downloaded, there is a transcript of the video, and a teacher's guide to aid in using the video. [21:38]
Sophia Learning
Sophia: Coordinate Geometry of Isosceles Trapezoids: Lesson 2
This lesson [8:14] will demonstrate how to use slope, midpoint, and distance formulas to determine from the coordinates of the vertices if a quadrilateral is an isosceles trapezoid in a coordinate plane. It is 2 of 5 in the series titled...
Sophia Learning
Sophia: Coordinate Geometry of Isosceles Trapezoids: Lesson 5
This lesson [3:38] will demonstrate how to use slope, midpoint, and distance formulas to determine from the coordinates of the vertices if a quadrilateral is an isosceles trapezoid in a coordinate plane. It is 5 of 5 in the series titled...
Sophia Learning
Sophia: Coordinate Geometry of Isosceles Trapezoids: Lesson 1
This lesson [7:37] will demonstrate how to use slope, midpoint, and distance formulas to determine from the coordinates of the vertices if a quadrilateral is an isosceles trapezoid in a coordinate plane. It is 1 of 5 in the series titled...
Sophia Learning
Sophia: Coordinate Geometry of Parallelograms: Lesson 3
This lesson [7:43] will demonstrate how to use slope, midpoint, and distance formulas to determine from the coordinates of the vertices if a quadrilateral is a parallelogram in a coordinate plane. It is 3 of 6 in the series titled...
Sophia Learning
Sophia: Coordinate Geometry of Rectangles: Lesson 3
This lesson [7:55] will demonstrate how to use slope, midpoint, and distance formulas to determine from the coordinates of the vertices if a quadrilateral is a rectangle in a coordinate plane. It is 3 of 5 in the series titled...
Sophia Learning
Sophia: Coordinate Geometry of Rhombii: Lesson 3
This lesson will demonstrate how to use slope, midpoint, and distance formulas to determine from the coordinates of the vertices if a quadrilateral is a rhombus in a coordinate plane. It is 3 of 4 in the series titled "Coordinate...
Sophia Learning
Sophia: Coordinate Geometry of Rhombii: Lesson 4
This lesson [2:19] will demonstrate how to use slope, midpoint, and distance formulas to determine from the coordinates of the vertices if a quadrilateral is a rhombus in a coordinate plane. It is 4 of 4 in the series titled "Coordinate...
Sophia Learning
Sophia: Coordinate Geometry of Square: Lesson 2
This lesson [7:10] will demonstrate how to use slope, midpoint, and distance formulas to determine from the coordinates of the vertices if a quadrilateral is a square in a coordinate plane. It is 2 of 3 in the series titled "Coordinate...
Sophia Learning
Sophia: Coordinate Geometry of Square: Lesson 3
This lesson will demonstrate how to use slope, midpoint, and distance formulas to determine from the coordinates of the vertices if a quadrilateral is a square in a coordinate plane. It is 3 of 3 in the series titled "Coordinate Geometry...
Sophia Learning
Sophia: Coordinate Geometry of Squares: Lesson 1
This lesson [8:34] will demonstrate how to use slope, midpoint, and distance formulas to determine, from the coordinates of the vertices, if a quadrilateral is a square in a coordinate plane. It is 1 of 2 in the series titled "Coordinate...
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