Curated Video
Geometric Transformations
This video illustrates the sequence that a geometric figure takes through a transformation. Transformations may include translations, reflections, and/or rotations.
Curated Video
Combined Transformations
This video will demonstrate how to use a combination of transformations to achieve the desired graph.
Curated Video
Drawing Images of Dilation with Negative Scale Factors
In this lesson, students will learn how to draw images of dilation with a negative scale factor using the center of dilation at the origin on the coordinate plane. They will understand that a dilation takes a segment not going through...
Brian McLogan
Learn how to rotate a figure 180 degrees about the origin ex 2
👉 Learn how to rotate a figure and different points about a fixed point. Most often that point or rotation will be the original but it is important to understand that it does not always have to be at the origin. When rotating it is also...
Brian McLogan
Learn how to apply a translation using a translation vector ex 2
👉 Learn how to label points, lines, and planes. A point defines a position in space. A line is a set of points. A line can be created by a minimum of two points. A plane is a flat surface made up of at least three points. A point is...
Brian McLogan
Learn how to reflect over the y=x line ex 3
👉 Learn how to reflect points and a figure over a line of symmetry. Sometimes the line of symmetry will be a random line or it can be represented by the x or y-axis. Either way when reflecting a point and or figure over the line of...
Brian McLogan
Learn how to reflect a triangle over the y axis ex 2
👉 Learn how to solve for unknown variables in congruent triangles. Two or more triangles are said to be congruent if they have the same shape and size. When one of the values of a pair of congruent sides or angles is unknown and the...
Curated Video
Drawing Images of Dilation with Different Centers and Scale Factors
In this video, the teacher explains how to draw an image of dilation using a center of dilation and a scale factor. The examples provided show different scenarios, including when the center of dilation is inside the pre-image, on the...
Curated Video
Graphing Dilations Using Coordinates
In this video, the teacher explains how to dilate a triangle without using a graph. They review the concept of scale factor and show how it affects the dimensions of an image. By multiplying the coordinates of each point by the scale...
Brian McLogan
Learn how to reflect a figure over a line of symmetry
👉 Learn how to reflect points and a figure over a line of symmetry. Sometimes the line of symmetry will be a random line or it can be represented by the x or y-axis. Either way when reflecting a point and or figure over the line of...
Curated Video
Understanding Rotations: Exploring Figures' Segments and Angles
In this video, students learn about rotations as a type of transformation in geometry. They explore how rotations differ from translations and reflections, focusing on the concept of maintaining the size and shape of a figure while...
Curated Video
Recognizing Congruence Through Reflections
In this video, the teacher explains how to recognize congruence between figures by using reflections. They demonstrate how to identify corresponding points and parts, and show how reflections can be used to determine if two figures are...
Curated Video
Solve Word Problems by Doing Dilations
In this video, the teacher explains how to use a photographic enlarger to create a print from a negative while maintaining proper proportions. The lesson also covers solving word problems involving dilations using different scale factors.
Curated Video
Calculating the Scale Factor of a Dilation
This video explains how to determine the scale factor of a dilation by comparing the side lengths of the preimage and image. It demonstrates two methods: dividing the corresponding vertices and finding the ratio of the corresponding...
Curated Video
Investigating Translations: Applying the Properties of Congruence
This video teaches about the properties of congruence and how they are applied in video game design through investigating translations. It explains the concept of corresponding points and how to identify them to determine if two figures...
Curated Video
Understanding Reflections in Geometry
In this video, we discuss how reflections are a type of rigid transformation where the image maintains the same size and shape as the preimage. We emphasize the importance of the line of reflection and how the distances of line segments...