SciShow
The Stroop Task: The Psych Test You Cannot Beat
The task sounds like it should be pretty easy, but the Stroop task is a fantastic, and very well studied, example of how your brain’s automatic processing can trip you up!
TED-Ed
TED-ED: How to prove a mathematical theory - Scott Kennedy
Euclid of Alexandria revolutionized the way that mathematics is written, presented or thought about, and introduced the concept of mathematical proofs. Discover what it takes to move from a loose theory or idea to a universally...
Curated Video
Geometry and Measurement: The Cube and The Cuboid
By the end of this learning object, the student will be able to: Recognize the cube and the cuboid.4464
Curated Video
Concepts and measurement: Congruence
By the end of this learning object, the student will be able to: Recognize the congruent meaning at line segment, angles, polygons, and the real life shapes.4596
Curated Video
Concepts and measurement: Constructing an Angle Congruent to a Given Angle
By the end of this learning object The learner will be able to: Construct a congruent angle to a given angle.4676
Curated Video
How to Find the Surface Area of Rectangular Prisms
In this video, the teacher demonstrates two methods for finding the surface area of a rectangular prism: creating a net by unfolding the prism and calculating the area of each face, or using a formula involving the area of the base and...
Curated Video
GCSE Maths - Congruent Triangle Rules #103
This video explains how to tell whether 2 triangles are congruent using 4 rules: SSS, SAS, AAS, RHS. This video is suitable for maths courses around the world. KS3 - Not on your course GCSE Foundation - All on your course GCSE Higher -...
Curated Video
GCSE Maths - Congruent Shapes #.102
This video explains what congruent shapes are. I.e. shapes that are the same shape and size, but may have different orientation (e.g. could have been rotated or reflected). This video is suitable for maths courses around the world. KS3 -...
Curated Video
Congruent Figures and Lines of Symmetry
Mr. Addit defines the terms: congruent figures and lines of symmetry. He then models how to determine if figures are congruent and where lines of symmetry can be drawn.
Curated Video
Congruent Triangles & Their Angle Measures | 8.G.A.5
In this math video we will learn about congruent triangles & their angle measures. We will review the definition of congruent figures which is that congruent figures have corresponding sides and corresponding angles that are congruent....
Curated Video
Similar Triangles & Slope | 8.EE.B.6
In this math video we will discuss similar triangles & slope. We will be presented with the graph of a line and two triangles arranged with their longest side on the line. We will have four statements to choose the one statement that...
Curated Video
Congruent Angles formed by Parallel Lines & a Transversal | 8.G.A.5
In this math video we will learn about congruent angles formed by parallel lines & a transversal. We will review the definitions of vertical angles, alternate interior angles and alternate exterior angles. We will also apply these...
Rock 'N Learn
What are Fractions?
What are fractions? You will learn how fractions are a way of writing the part or parts of something. All fractions have a numerator and a denominator. Parts that are the same size and shape are called congruent parts.
Curated Video
Translations & Congruency | 8.G.A.1
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...
Curated Video
Transformations: Congruent or Not Congruent | 8.G.A.2
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...
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
Proofs Using CPCTC
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...
Curated Video
Angle Construction
This video provides instruction on how to construct an angle bisector for a given angle.
Curated Video
Line Segment Construction
This video shows how to construct congruent line segments using a compass and a straightedge.
Curated Video
Constructing Segments and Angles
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.
Curated Video
Congruent Figures and Symmetry
A video entitled “Congruent Figures and Symmetry” which models how to determine if figures are congruent and where lines of symmetry can be drawn.
Curated Video
Transformations: Congruent or Similar Images
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...