Corbett Maths
Finding the Mirror Line
Where does the reflection come from? The vivdeo starts with a quick review of the form of the equation of horizontal and vertical lines and diagonals passing through the origin. Using a pre-image and an image of a reflected figure, the...
Corbett Maths
Midpoint of a Line
Don't leave your geometry knowledge only halfway complete. An informative video shows how to find the midpoint of a line segment. It introduces the midpoint formula and explains how to use the formula to find the midpoint given the...
Mathispower4u
Midpoint of a Segment (Example)
Finding the midpoint is as simple as finding the middle. Given a graph of a segment, a video tutorial demonstrates how to find the midpoint. The instructor uses the midpoint formula and then reinforces the calculations with the graph.
Corbett Maths
Coordinates and Shapes
Where is the point? Given three points on the coordinate plane, the video walks through the steps to find the location of the fourth point to create a given special quadrilateral. The narrator first determines the coordinates of the...
Corbett Maths
Enlargements
Count on the scale to enlarge a figure. The video shows how to create an enlargement given a scale factor and a center of enlargement. The presenter multiplies the vertical and horizontal distance by the scale factor to find the new...
Corbett Maths
Area of a Shape on a Grid
What does a grid have to do with area? Well, just about everything! Learners view composite shapes on a grid and watch as the video instructor finds their areas. The examples use shapes composed of rectangles and triangles. Scholars...
Anywhere Math
Polygons in the Coordinate Plane
You'll be ready to plot something after a lesson on coordinate geometry! The video instructor begins by discussing how to plot four points to create a quadrilateral. The second example demonstrates finding the area and perimeter from the...
CK-12 Foundation
Transformation - Rotation: Lesson
Change places by pivoting the figure. The section of a geometry playlist introduces rotations by making the connection to rotational symmetry. The presentation provides formulas to use with the coordinates when rotating a figure around...
CK-12 Foundation
Transformation - Translation: Lesson
Develop a prime example of sliding about the coordinate plane. Using figures on the coordinate plane, a segment of an extensive geometry playlist introduces the transformation of translations. The presentation uses coordinate notation to...
CK-12 Foundation
Dilation in the Coordinate Plane: Lesson
Multiply coordinates to either shrink or enlarge a figure. An informative segment of a geometry playlist introduces dilation on the coordinate plane. The dilations in the resource use the origin as the center of dilation, which makes...
CK-12 Foundation
Midsegment Theorem: Lesson
Use half the length to connect the midpoints. A section of a playlist on geometry introduces the concept of a midsegment of a triangle and how to find it. The video states the properties of the midsegment which make up the Midsegment...
CK-12 Foundation
Finding the Distance Between Two Points: Lesson
Point out an application of Pythagoras. The segment of an essential playlist on geometry provides a quick review of the Pythagorean Theorem. Using a right triangle to show the positions of two points, the presenter calculates the...
CK-12 Foundation
Perpendicular Lines in the Coordinate Planes: Lesson
Get the slope right with two easy steps. By placing two perpendicular lines on the coordinate plane, the video determines the relationship of the slopes of the two line lines. The resource is a part of an informative and extensive...
FuseSchool
Finding the Midpoint of 2 Coordinates
Demonstrate how to find the midpoint between two ordered pairs. A detailed video lesson connects finding the midpoint to finding the average of the coordinates of the ordered pairs. Using a graph helps to visually reinforce the concept.
PBS
When Pi is Not 3.14
Isn't pi supposed to be constant? An intriguing video shows how the value of pi can change when the definition of distance varies. It explains how using various L^p metrics, where p = 2 represents the traditional Euclidean metric,...
Mathed Up!
Mixed Transformations
Viewers learn how to identify and perform a variety of transformations with a video that provides seven items on transformations. Pupils demonstrate their understanding of dilations, reflections, rotations, and translations. The video...
Mathed Up!
Translations
Introduce translations as transformations that move figures in horizontal and vertical distances with a video that shows how to translate the figures. A second video covers how to determine the translation that has occurred. Pupils...
Krista King Math
Area of Trapezoids
Rectangles, 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...
Krista King Math
Area of a Triangle
Triangles are not all created the same. The instructor shows how to find the area of different types of triangles using the formula. She also includes an example requiring coordinate geometry.
National Education Association
Use Coordinate Geometry to Represent and/or Solve Problems
A geometry video explains how to solve for midpoint, length of a line, and use the Pythagorean Theorem. It includes multiple guided practice problems for all three equations.
Corbett Maths
Distance Between Two Coordinates
Go the distance in learning about the coordinate system. Scholars watch a video that first explains how the distance formula is simply an application of the Pythagorean Theorem. They see how to determine the distance between two points...
Corbett Maths
3D Coordinates
Three-dimensional space requires three coordinates. Makes sense, right? Scholars learn about coordinates in three-dimensional space. They watch a video that explains the three-dimensional coordinate system and highlights an exam problem...
Corbett Maths
Coordinates
Over and up, it's really that easy. A short video describes how to locate points and how to identify the coordinates of points on a two-dimensional coordinate plane. A worksheet provides some additional problems to help scholars master...
CK-12 Foundation
Midpoints and Segment Bisectors: Lesson
Let's meet in the middle. As part of a comprehensive playlist on basic geometry, the video introduces the definitions of a midpoint and segment bisector. The resource shows a graphical approach to finding the midpoint of a line segment...