Instructional Video2:20
Curated Video

Translations & Congruency | 8.G.A.1

9th - 12th
In this math video we will learn about the relationship between translations & congruency. We will review how to perform a translation by translating a line segment four units right and four units down in a coordinate plane. We will find...
Instructional Video5:53
Curated Video

Transformations: Congruent or Not Congruent | 8.G.A.2

9th - 12th
In this math video we will be discussing transformation and congruent or not congruent. We will identify the four types of transformations to be translation, reflection, rotation, and dilation. We will understand a translation to result...
Instructional Video6:23
Curated Video

Geometric Transformations

K - 8th
This video illustrates the sequence that a geometric figure takes through a transformation. Transformations may include translations, reflections, and/or rotations.
Instructional Video6:30
Curated Video

Proofs Using CPCTC

K - 8th
Congruent triangles are two triangles that share the same shape and size, but their positioning may be different. If you know that two triangles are congruent, you can prove every corresponding angle and every corresponding side is...
Instructional Video3:19
Curated Video

Angle Construction

K - 8th
This video provides instruction on how to construct an angle bisector for a given angle.
Instructional Video3:16
Curated Video

Line Segment Construction

K - 8th
This video shows how to construct congruent line segments using a compass and a straightedge.
Instructional Video6:47
Curated Video

Constructing Segments and Angles

K - 8th
In this video, you will learn how to construct congruent line segments and congruent angles. To complete constructions in mathematics, you will need only two tools: a compass and a straightedge.
Instructional Video3:22
Curated Video

Congruent Figures and Symmetry

K - 8th
A video entitled “Congruent Figures and Symmetry” which models how to determine if figures are congruent and where lines of symmetry can be drawn.
Instructional Video2:45
Curated Video

Proofs

K - 8th
A video entitled “Proofs” which explores how to set up geometric proofs.
Instructional Video4:55
Curated Video

Transformations: Congruent or Similar Images

9th - 12th
In this video, the teacher explains the four types of transformations in math - translation, reflection, rotation, and dilation. They then use a given problem to demonstrate how to identify a transformation that would result in a similar...
Instructional Video3:27
Curated Video

High Five Facts - Polygons

Pre-K - 5th
This video explores five fun facts about polygons.
Instructional Video5:59
Curated Video

Using Angle Facts

9th - 12th
In this video, the teacher uses angle facts to solve math problems. The students are given a diagram with intersecting lines and angles, and they are asked to write algebraic equations to find the values of X and Y. The teacher walks...
Instructional Video1:35
Curated Video

A congruent angle to a given angle

K - 8th
A congruent angle to a given angle
Instructional Video2:10
Curated Video

The cube and the cuboid

K - 8th
The cube and the cuboid
Instructional Video1:28
Curated Video

The congruent meaning at line segment

K - 8th
The congruent meaning at line segment
Instructional Video6:47
Curated Video

Solving for X in Right Triangles using the Sine Ratio

K - 5th
In this video, we learn about solving for X in triangles using the sine ratio. By comparing the ratios of the length of the side opposite an acute angle to the length of the hypotenuse in right triangles, we can determine the value of X....
Instructional Video7:39
TMW Media

Geometric Proofs: Part 3 of 3 of learning to solve proofs

K - 5th
This video contains 1 proof to solve.<br/>
Geometric Proofs, Part 6
Instructional Video2:40
Curated Video

Identifying Congruent Figures

K - 5th
In this video, students will learn how to identify congruent figures by comparing their segments and angles. They will understand that congruent means having the same length, measure, or size. The video explains the symbol used to...
Instructional Video5:40
Curated Video

Using Similarity Criteria to Find the Distance Across a Canyon

K - 5th
In this lesson, students learn how to solve real-world problems involving similarity criteria. Using the example of finding the distance across a canyon, they apply the vertical angle theorem and angle-angle similarity postulate to...
Instructional Video6:39
Curated Video

Finding Missing Measures in Triangles

K - 5th
In this video, the teacher explains how to find missing measures in triangles using congruence and similarity criteria. They cover different congruence criteria, such as side-side-side and angle-side-angle, as well as similarity criteria...
Instructional Video6:23
Brian McLogan

Geometry - How to Write a Proof of Congruent Triangles Using AAS

12th - Higher Ed
👉 Learn how to prove that two triangles are congruent. Two or more triangles are said to be congruent if they have the same shape and size. There are many postulates and theorems to determine whether two triangles are congruent. They...
Instructional Video4:23
Curated Video

Classifying Quadrilaterals by Describing Properties

K - 5th
It's not enough to just consider the number of sides in a quadrilateral, we must also consider the congruence of sides, the types of angles formed, and the presence of parallel or perpendicular lines. Using a square as an example, we...
Instructional Video8:06
Curated Video

GCSE Secondary Maths Age 13-17 - Geometry & Measures: Parallel Lines - Explained

9th - 12th
SchoolOnline's Secondary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 13-17, they cover every key topic and sub topic covered in GCSE Maths in clear and easy to follow...
Instructional Video8:00
Brian McLogan

Proving Parallel Lines with Angle Relationships

12th - Higher Ed
👉 Learn about converse theorems of parallel lines and a transversal. Two lines are said to be parallel when they have the same slope and are drawn straight to each other such that they cannot meet. In geometry, parallel lines are...