Videos

Video thumbnail for How to Calculate ANGLES on Parallel Lines - GEOMETRY 101 - Grade 8
07:09
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How to Calculate ANGLES on Parallel Lines - GEOMETRY 101 - Grade 8

Don't forget to watch the previous video on Angles on intersecting and straight lines, link is below: https://youtu.be/kvTIus99haU This is the follow up lesson and today Mr Oosthuizen teaches us how to calculate angles on parallel lines. SHFT affords independent and motivated candidates the freedom to work at their own pace and achieve academic ...
YouTube
· Aug 19, 2022
Video thumbnail for 8th Grade Geometry Lesson 9 – Volume of Cylinders, Cones, and Spheres
21:46
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8th Grade Geometry Lesson 9 – Volume of Cylinders, Cones, and Spheres

Using the formulas to calculate the volume of circular solids; finding missing dimensions, given the volume.
YouTube
· Jan 16, 2022
Video thumbnail for Pythagorean theorem in 3D | Geometry | 8th grade | Khan Academy
05:55
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Pythagorean theorem in 3D | Geometry | 8th grade | Khan Academy

The Pythagorean theorem is useful in 3D figures, too! Can you find the right triangles hidden within the prisms and pyramids? Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-geometry/cc-8th-pythagorean-theorem/e/pythagorean-theorem-in-3d?utm_source=YT&utm_medium=Desc&utm ...
YouTube
· Oct 15, 2014
Video thumbnail for Grade 8 Geometry
11:12
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Grade 8 Geometry

Geometry of Straight Lines: Complementary and Supplementary Angles www.youcandomaths.co.za
YouTube
· Feb 19, 2018
Video thumbnail for Pythagorean Theorem | 8th Grade Math STAAR Test Review Lesson
14:03
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Pythagorean Theorem | 8th Grade Math STAAR Test Review Lesson

Join me as I review how to model the pythagorean theorem, find the missing side lengths of right triangles, prove if triangles are right or not with the pythagorean theorem converse, and find the distance between two points for the 8th grade math STAAR Test. My name is Lauren Casias. I am an 8th grade math and Algebra 1 teacher from Texas ...
YouTube
· Apr 12, 2023
Video thumbnail for Slope-Intercept Form Tables on the TI-84 Calculator | 8th Grade Math Pre-Algebra
07:36
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Slope-Intercept Form Tables on the TI-84 Calculator | 8th Grade Math Pre-Algebra

Join me as I show you how to type a linear equation in slope-intercept form into the calculator in order to view the table of ordered pairs. My name is Lauren Casias. I am an 8th grade math teacher from Texas. Thank you for watching! You can find the handout used on my Teachers Pay Teachers store here: https://www.teacherspayteachers.com ...
YouTube
· May 21, 2023
Video thumbnail for Transformations in Geometry:Translations, Reflections, and Rotations Explained!|Math Defined|8.G.A.1
03:49
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Transformations in Geometry:Translations, Reflections, and Rotations Explained!|Math Defined|8.G.A.1

Discover the exciting world of transformations in geometry! In this video, Mrs. C breaks down the three main types of transformations—translations, reflections, and rotations with easy-to-follow examples and real-world connections. You’ll learn: How to slide, flip, and turn shapes while preserving their size and shape Step-by-step examples ...
YouTube
· Dec 21, 2024
Video thumbnail for Angles formed by parallel lines and transversals | Geometry | Khan Academy
07:07
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Angles formed by parallel lines and transversals | Geometry | Khan Academy

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-geometry/cc-8th-angles-between-lines/v/angles-formed-by-parallel-lines-and-transversals Parallel lines, transversal lines, corresponding angles Practice this lesson yourself on KhanAcademy ...
YouTube
· Sep 21, 2011
Video thumbnail for Perimeter, Area, and Volume Explained | Math with Mr. J
10:21
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Perimeter, Area, and Volume Explained | Math with Mr. J

Welcome to Perimeter, Area, and Volume Explained with Mr. J! Need help with perimeter, area, and volume? You're in the right place! Whether you're just starting out, or need a quick refresher, this is the video for you if you're looking for help with understanding perimeter, area, and volume. Mr. J will explain and go through an example of ...
YouTube
· Sep 8, 2023
Video thumbnail for Coordinate plane examples | Linear equations and functions | 8th grade | Khan Academy
06:50
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Coordinate plane examples | Linear equations and functions | 8th grade | Khan Academy

Let's get familiar with the x/y coordinate plane, both from the perspective of plotting points and interpreting the placement of points on a plane. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-linear-equations-functions/8th-solutions-to-two-var-linear-equations/e ...
YouTube
· Apr 3, 2010
Video thumbnail for Grade 8 Math #11.1a, Transversals - Parallel lines and Angles
08:29
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Grade 8 Math #11.1a, Transversals - Parallel lines and Angles

An explanation of how a set of parallel lines, with a transversal line cutting through them, will have 8 angles. The difference between interior and exterior angles. Corresponding angles, Alternate interior angles, Alternate exterior angles, Same side interior angles and how they relate to angle measures. #11.1a Grade 8 Math #11.1a ...
YouTube
· Sep 9, 2016
Video thumbnail for 8th Grade Math Dilations
05:00
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8th Grade Math Dilations

Learn how to generalize that the ratio of corresponding sides of similar shapes are proportional, including a shape and its dilation. Find all my videos and even more math resources at https://www.FiveMinuteMath.net.
YouTube
· Jul 15, 2022
Video thumbnail for Triangles - Basic Introduction, Geometry
23:02
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Triangles - Basic Introduction, Geometry

This geometry video provides a basic introduction into triangles. It explains how to calculate the measure of an interior angle of a triangle as well as the exterior angle. The sum of all three interior angles is 180. The exterior angle is the sum of the two remote interior angles according to the exterior angle theorem. In addition, this video ...
YouTube
· Dec 27, 2017
Video thumbnail for Finding more angles | Angles and intersecting lines | Geometry | Khan Academy
06:05
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Finding more angles | Angles and intersecting lines | Geometry | Khan Academy

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-geometry/cc-8th-triangle-angles/v/finding-more-angles Example of angle hunting! Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry ...
YouTube
· Sep 22, 2011
Video thumbnail for Geometry Translations Explained!
05:49
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Geometry Translations Explained!

On this lesson, you will learn how to perform translations on the coordinate plane including how to translate a line, translate a point, translate a triangle, and translate a figure. Free PDF Guide to Translations: www.mashupmath.com/blog/geometry-translations-explained For more MashUp Math content, visit http://www.mashupmath.com and join our ...
YouTube
· Mar 30, 2015
Video thumbnail for Angle basics | Angles and intersecting lines | Geometry | Khan Academy
06:49
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Angle basics | Angles and intersecting lines | Geometry | Khan Academy

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-geometry/cc-7th-angles/v/angle-basics The naming of an angle is related to the line segments that create it. We'll also learn about the angle's vertex. Come on. Let's do this. Watch the ...
YouTube
· Sep 21, 2011
Video thumbnail for Geometry Rotations Explained (90, 180, 270, 360)
11:28
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Geometry Rotations Explained (90, 180, 270, 360)

On this lesson, you will learn how to perform geometry rotations of 90 degrees, 180 degrees, 270 degrees, and 360 degrees clockwise and counter clockwise and visually explore how to rotate a point, line segment, and figure in the coordinate plane. For more MashUp Math content, visit http://www.mashupmath.com and join our free mailing list ...
YouTube
· Apr 13, 2015
Video thumbnail for Introduction to transformations | Transformations | Geometry | Khan Academy
07:22
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Introduction to transformations | Transformations | Geometry | Khan Academy

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/math/geometry/hs-geo-transformations/hs-geo-transformations-intro/v/introduction-to-transformations Introduction to transformations Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org ...
YouTube
· Jul 16, 2015
Video thumbnail for Introduction to the Desmos Graphing Calculator
01:58
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Introduction to the Desmos Graphing Calculator

Welcome to a quick introduction to the Desmos graphing calculator. Access the calculator at https://www.desmos.com/. Learn more at http://learn.desmos.com/graphing.
YouTube
· Feb 12, 2020
Video thumbnail for The Pythagorean theorem intro | Right triangles and trigonometry | Geometry | Khan Academy
10:46
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The Pythagorean theorem intro | Right triangles and trigonometry | Geometry | Khan Academy

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-geometry/cc-8th-pythagorean-theorem/v/the-pythagorean-theorem Introduction to the Pythagorean Theorem Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy ...
YouTube
· Aug 9, 2010
Video thumbnail for Converting linear equations to slope-intercept form | 8th grade | Khan Academy
05:07
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Converting linear equations to slope-intercept form | 8th grade | Khan Academy

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-linear-equations-functions/8th-slope/v/converting-to-slope-intercept-form Converting to slope-intercept form Practice this lesson yourself on KhanAcademy.org right now: https://www ...
YouTube
· Jun 13, 2010
Video thumbnail for Graphs of linear equations | Linear equations and functions | 8th grade | Khan Academy
13:10
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Graphs of linear equations | Linear equations and functions | 8th grade | Khan Academy

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/math/in-in-grade-9-ncert/xfd53e0255cd302f8:linear-equations-in-two-variables/xfd53e0255cd302f8:graph-of-a-linear-equation-in-two-variables/v/graphs-of-linear-equations Practice this lesson yourself on KhanAcademy.org ...
YouTube
· Apr 3, 2010
Video thumbnail for Graphing systems of equations | Systems of equations | 8th grade | Khan Academy
06:35
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Graphing systems of equations | Systems of equations | 8th grade | Khan Academy

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-systems-topic/cc-8th-systems-graphically/v/graphings-systems-of-equations Graphing Systems of Equations Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy ...
YouTube
· Jan 1, 2009
Video thumbnail for Multiplying and Dividing Fractions | A Complete Guide | Math with Mr. J
01:42:56
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Multiplying and Dividing Fractions | A Complete Guide | Math with Mr. J

Welcome to Multiplying and Dividing Fractions: The Ultimate Guide with Mr. J! Need help with how to multiply and divide fractions? You're in the right place! Whether you're just starting out, or need a quick refresher, this is the video for you if you're looking for help with multiplying and dividing fractions. Mr. J will go through examples of ...
YouTube
· Jun 22, 2023
Video thumbnail for Challenging triangle angle problem | Angles and intersecting lines | Geometry | Khan Academy
08:37
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Challenging triangle angle problem | Angles and intersecting lines | Geometry | Khan Academy

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-geometry/cc-8th-triangle-angles/v/challenging-triangle-angle-problem Interesting problem finding the sums of particular exterior angles of an irregular pentagon Watch the next lesson ...
YouTube
· Sep 22, 2011
Video thumbnail for Introduction to Geometry
34:03
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Introduction to Geometry

This video tutorial provides a basic introduction into geometry. Geometry Introduction: https://www.youtube.com/watch?v=302eJ3TzJQU Algebra Review: https://www.youtube.com/watch?v=i6sbjtJjJ-A ____________________________________ Lines, Rays, Line Segments, & Angles: https://www.youtube.com/watch?v=oeO8f0taQDA Acute, Obtuse, Right, & Straight ...
YouTube
· Sep 5, 2018
Video thumbnail for Comparing rates | Linear equations and functions | 8th grade | Khan Academy
01:25
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Comparing rates | Linear equations and functions | 8th grade | Khan Academy

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-linear-equations-functions/cc-8th-graphing-prop-rel/e/comparing-proportional-relationships?utm_source=YT&utm_medium=Desc&utm_campaign=8thgrade Watch the next lesson: https://www.khanacademy.org/math/cc-eighth-grade-math/cc ...
YouTube
· Aug 18, 2015
Video thumbnail for Triangle angle example 3 | Angles and intersecting lines | Geometry | Khan Academy
05:42
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Triangle angle example 3 | Angles and intersecting lines | Geometry | Khan Academy

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-geometry/cc-8th-triangle-angles/v/triangle-angle-example-3 Multiple ways to solve for the angles of multiple triangles Watch the next lesson: https://www.khanacademy.org/math/geometry ...
YouTube
· Sep 22, 2011
Video thumbnail for Finding Missing Angles Vertical and Supplementary Angles
05:25
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Finding Missing Angles Vertical and Supplementary Angles

This video covers one example on how to find the missing angle when given a set of lines, using angle relationships. Like, Subscribe & Share!! If you have a suggestion for a video that I don't have, please let me know in the comments or email me at khernandez.mathvids@gmail.com
YouTube
· May 25, 2018
Video thumbnail for Dilations: Geometry Transformations Explained!
06:31
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Dilations: Geometry Transformations Explained!

On this geometry transformations lesson, you will learn how to perform math dilations and dilate geometric figures based on a given dilation scale factor. Free PDF Lesson Guide: https://bit.ly/2KsADo7 For more MashUp Math content, visit http://www.mashupmath.com and join our free mailing list! :) This lesson answers the questions: How do I ...
YouTube
· Mar 30, 2015
Video thumbnail for Use Pythagorean Theorem to Find Missing Side Lengths in Right Triangles | 8th Grade Math Pre-Algebra
13:20
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Use Pythagorean Theorem to Find Missing Side Lengths in Right Triangles | 8th Grade Math Pre-Algebra

Join me as I show you how to find the missing side length of a right triangle (legs & hypotenuse) using the pythagorean theorem. My name is Lauren Casias. I am an 8th grade math teacher from Texas. Thank you for watching! You can find the handout used on my Teachers Pay Teachers store here: https://www.teacherspayteachers.com/Product/The ...
YouTube
· Jul 15, 2021
Video thumbnail for Square Roots and Cube Roots | Math with Mr. J
05:03
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Square Roots and Cube Roots | Math with Mr. J

Welcome to Square Roots and Cube Roots with Mr. J! Need help with square roots and cube roots? You're in the right place! Whether you're just starting out, or need a quick refresher, this is the video for you if you're looking for help with square roots and cube roots. Mr. J will go through examples of square roots, examples of cube roots, and ...
YouTube
· Nov 10, 2022
Video thumbnail for Grade 8 Math Geometry Lesson Overview
01:23
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Grade 8 Math Geometry Lesson Overview

Explore the fundamentals of geometry in Grade 8 with this comprehensive lesson overview. Learn about basic geometric shapes, line properties, and more. #GEOMETRY#math#studynotes#learnitontiktokph HS Study Notes(@hsstudynotes). original sound - High School Study Notes - HS Study Notes. MATH 8 Quarter 4 Topics #GEOMETRY#math#mathlesson#studynotes ...
TikTok
· May 2, 2024
Video thumbnail for Identifying Slope and Y-Intercept | How to Find Y-Intercept | 8th Grade Math Pre-Algebra
08:25
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Identifying Slope and Y-Intercept | How to Find Y-Intercept | 8th Grade Math Pre-Algebra

Join me as I show you how to identify slope and y-intercept from graphs, tables, and sets of ordered pairs. My name is Lauren Casias. I am an 8th grade math teacher from Texas. Thank you for watching! You can find the handout used on my Teachers Pay Teachers store here: https://www.teacherspayteachers.com/Product/Identify-Slope-Y-Intercept-from ...
YouTube
· Jul 20, 2021
Video thumbnail for STAAR 8th Grade Math Test May 2022 (questions 1 - 42)
01:07:12
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STAAR 8th Grade Math Test May 2022 (questions 1 - 42)

In this video I go through the STAAR 8th Grade Math Test May 2022 (questions 1-42). I show a combination of algebraic and calculator techniques to go through all 42 questions. Some of the concepts covered in this video include: finding slope between two points, writing the equation of a line, direct variation, volume of 3D shapes, types of ...
YouTube
· Mar 2, 2023
Video thumbnail for Functions and Slope | 8th Grade Math STAAR Test Review Lesson
08:49
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Functions and Slope | 8th Grade Math STAAR Test Review Lesson

Join me as I review how to identify functions, find slope from a graph, use slope formula, and find the rate of change from real world situations for the 8th grade math STAAR Test. My name is Lauren Casias. I am an 8th grade math and Algebra 1 teacher from Texas. Thank you for watching! You can find the handout used on my Teachers Pay Teachers ...
YouTube
· Apr 25, 2023
Video thumbnail for Graphing linear equations tutorial for 7th and 8th grade students
02:29
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Graphing linear equations tutorial for 7th and 8th grade students

Graphing linear equations tutorial for 7th and 8th grade students. This is a math lesson in which the teacher in the video teaches students how to calculate points represented by (xy) coordinates on a graph. These points will form a straight line if plotted. There are more of such activities on linear graphs in the form of games, quizzes and ...
YouTube
· Feb 23, 2018
Video thumbnail for Calculating the slope, Pre-algebra lesson for 7th and 8th graders
01:16
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Calculating the slope, Pre-algebra lesson for 7th and 8th graders

http://www.kidsmathtv.com/ Teach kids how to calculate the slope based on (X,Y) coordinate pairs. Pre-algebra lesson for 7th and 8th graders. This is an easy step by step tutorial which children can learn on their own by watching.
YouTube
· Dec 25, 2013
Video thumbnail for 8th Grade Geometry Lesson 10 – Volume of Composite Solids
07:08
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8th Grade Geometry Lesson 10 – Volume of Composite Solids

Using known volume formulas (prisms, cylinders, cones, & spheres) to find the volumes of combinations of geometric solids.
YouTube
· Jan 10, 2022
Video thumbnail for Dilations on the Coordinate Plane | 8th Grade Math Pre-Algebra
11:19
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Dilations on the Coordinate Plane | 8th Grade Math Pre-Algebra

Join me as I show you how to find the scale factor and write a rule for dilations on the coordinate plane. My name is Lauren Casias. I am an 8th grade math teacher from Texas. Thank you for watching! You can find the handout used on my Teachers Pay Teachers store here: https://www.teacherspayteachers.com/Product/Dilations-on-the-Coordinate ...
YouTube
· Jul 23, 2021
Video thumbnail for Scatter Plots | 8th Grade | Mathcation
06:47
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Scatter Plots | 8th Grade | Mathcation

Scatter Plots are graphic representations of the relationship between two variables. Scatter Plots are a good way to look at the correlation between the two variables. The correlation of a Scatter Plot can be three different things. There can be a positive correlation, a negative correlation, and no correlation. A positive correlation means ...
YouTube
· Oct 7, 2018
Video thumbnail for The angle sum of a triangle - proof and exercises (8th grade math)
04:17
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The angle sum of a triangle - proof and exercises (8th grade math)

See a simple way to prove that the angle sum in a triangle is 180 degrees. After the proof, we also look at two exercises: one with an unknown angle, and another that leads to an equation to solve. Math Mammoth Grade 8 Curriculum https://www.mathmammoth.com/complete/grade_8
YouTube
· Jan 3, 2025
Video thumbnail for 8th Math Weekly #25 Two Way Tables
07:10
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8th Math Weekly #25 Two Way Tables

YouTube
· Mar 2, 2016
Video thumbnail for Translations on the Coordinate Plane | 8th Grade Math Pre-Algebra
11:14
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Translations on the Coordinate Plane | 8th Grade Math Pre-Algebra

Join me as I show you how to identify translations on the coordinate plane and write an algebraic rule to describe the translation. My name is Lauren Casias. I am an 8th grade math teacher from Texas. Thank you for watching! You can find the handout used on my Teachers Pay Teachers store here: https://www.teacherspayteachers.com/Product ...
YouTube
· Jul 23, 2021
Video thumbnail for Transformations 8th Grade Math
06:31
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Transformations 8th Grade Math

YouTube
· May 29, 2013
Video thumbnail for Geometric transformations: the basics of dilations (8th grade math)
05:17
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Geometric transformations: the basics of dilations (8th grade math)

A dilation enlarges or shrinks a figure proportionally, so it maintains it shape, but not (necessarily) its size. We look at the mathematical definition of a dilation, which involves a center point of the dilation and a scale factor. Then I also "play around" with a triangle, showing how the center point of the dilation affects the dilation ...
YouTube
· Nov 20, 2024
Video thumbnail for Reflections on the Coordinate Plane | 8th Grade Math Pre-Algebra
08:24
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Reflections on the Coordinate Plane | 8th Grade Math Pre-Algebra

Join me as I show you how to identify reflections over the x-axis and y-axis and write an algebraic rule to describe the reflection. My name is Lauren Casias. I am an 8th grade math teacher from Texas. Thank you for watching! You can find the handout used on my Teachers Pay Teachers store here: https://www.teacherspayteachers.com/Product ...
YouTube
· Jul 23, 2021
Video thumbnail for 8th Grade Geometry Lesson 2 – Angle Relationships and Triangles
20:22
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8th Grade Geometry Lesson 2 – Angle Relationships and Triangles

Interior angle sums of triangles, supplementary angles, and remote interior + exterior angle relationships.
YouTube
· Nov 28, 2021
Video thumbnail for 8th Grade Math Slope in Similar Right Triangles
04:57
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8th Grade Math Slope in Similar Right Triangles

Learn how to use similar right triangles to develop an understanding that slope, m, given as the rate comparing the change in y- values to the change in x- values, (y2 - y1 ) / (x2 - x1 ), is the same for any two points (x1 , y1 ) and (x2 , y2 ) on the same line. Find all my videos and even more math resources at https://www.FiveMinuteMath.net.
YouTube
· Jul 17, 2022
Video thumbnail for 8th Grade Math STAAR Review
43:57
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8th Grade Math STAAR Review

YouTube
· May 11, 2021