Lumos Video Store
This page provides a list of educational videos related to Equal Ratios and Proportions. You can also use this page to find sample questions, apps, worksheets, lessons , infographics and presentations related to Equal Ratios and Proportions.
Testing if Ratios are Proportional
By Khan Academy
Watch this video to learn a method to test if two (or more) ratios are equal. Equal ratios are called proportional. If the ratios can be reduced the same fraction in lowest terms then they are proportional.
Writing proportions
By Khan Academy
Some examples of writing two ratios and setting them equal to each other to solve proportion word problems
1.8 - Finding the inverse of a rational function with a root as a denominator - coolmath
By Mr. McLogan's Math Channel
In this video tutorial I will show you how to find the inverse of a function f(x). I do this by first writing the equation substituting y for f(x). I then solve the equation for x. The result is the inverse. The inverse can be written, substituting y back in for x, and x for y. I also show how to verify that a function is an inverse of another function. I am a math teacher that provides free online math tutoring by working through problems for the website www.freemathvideos.com These questions are usually to help students understand their math homework or to do well on their math test. The videos are made for students that want help with math and want to be shown a step by step process into solving the problems. In addition to solving the problems I also offer explanations into why I am doing each step. I offer free math videos so that my students can learn math online if they missed a day of school. However I also like to answer questions that are no
Hooke's Law and Elastic Potential Energy
By The Organic Chemistry Tutor
This video provides a basic introduction into Hooke's law. It explains how to calculate the elastic potential energy and how to determine the amount of work required to stretch a spring.
01 - Direct Variation and Proportion in Algebra - Part 1 (Constant of Variation & More)
By Math and Science
Quality Math And Science Videos that feature step-by-step example problems!
8th Grade Math
By Lumos Learning
8th grade math lesson addressing Common Core Standards (Massachusetts Curriculum Framework Standard 8.EE.6).
8th Grade Math
By
8th grade math lesson addressing Common Core Standards (Massachusetts Curriculum Framework Standard 8.EE.6).
2011 Roundtable at Stanford: Redefining K-12 Education in America
By Lumos Learning
October 22, 2011 - Designing an education that truly builds the necessary skills for today's enormously diverse student population is not easy. But it's the key to opportunity for our citizens, economic vitality for our nation, and to assuring the U.S. remains a world leader. There is hope: innovations and innovators that challenge the status quo; research to help us understand how to move the education needle; a virtual army of reformers experimenting with new ways to teach, learn, and run our public schools.