Mathispower4u
Identify the Solution to a System of Equation Given a Graph, Then Verify (Example)
Is the solution really the solution? Given a graph of a linear system, an informative video shows learners how to determine the solution as the point of intersection. The presenter verifies the solution as a solution to the system by...
Mathispower4u
Solve a System of 2 Equations with 2 Unknowns by Graphing on the TI84 (Example)
Let the technology do the graphing. Learners watch a helpful algebra video that shows how to use a graphing calculator to solve a system of linear equations. The presentation works through one example using a TI-84 to solve a system and...
Mathispower4u
Determine Solutions to Systems of Linear Equations Graphically (Example)
Picture the solution. The Mathispower4u Algebra I video uses three examples of finding the solution of a system of linear equations given as a graph. Pupils use their knowledge of linear graphs to also identify the equations for the...
Mathispower4u
Solving Equations Using the Story of x (Part 2)
The story continues with more complex equations. Learners see that using the story method works even with multi-step equations. Pupils learn the process of undoing a description of a multi-step expression to solve an equation containing...
Mathispower4u
Solving Equations Using the Story of x (Part 1)
Tell the story of solving an equation. With words and symbols, viewers learn to describe what is happening in an equation. Using that description, pupils reverse the story to arrive at the value of x that makes the equation true.
Mathispower4u
Solve a Linear System of Equations by Graphing (No Solution) - Example
Provide an inconsistent example. Learners view an algebra video demonstrating how to solve a system of linear equations by graphing. The system does not have any solutions or is inconsistent. Scholars realize that the graphs of the two...
National Woman's History Museum
Anna Maria Jarvis: The History of Mother's Day
Anna Maria Jarvis may be considered the mother of Mother's Day, but the history of the celebration goes all the way back to Ancient Greeks who honored Rhea, the mother of their gods. The narrator of a short video traces the history of...
National Woman's History Museum
Women's History Minute: Suffrage
The American West may have been a wild place in the late 18th and early 19th centuries, but they were far more progressive than eastern states in granting women the right to vote. A brief video outlines how Wyoming and other western...
National Woman's History Museum
Women's History Minute: Flight
You know Amelia Earhart and Sally Ride, but few recall the contributions of Harriet Quimby, Bessie Coleman, Florence Lowe Barnes, and Jacqueline Cochran to the history of flight. A short video introduces viewers to these high-flying women.
National Woman's History Museum
Women's History Minute: Finance
An advocate for equal pay and promotional opportunities for women, Muriel Siebert, was the first woman to sit on the New York Stock Exchange. A short video provides viewers with an introduction to Siebert's achievements.
National Woman's History Museum
Women's History Minute: Ellen Ochoa
Imagine spending 978 hours in space! Meet Ellen Ochoa, the first Hispanic woman astronaut and the Johnson Space Center director who has done just that. The accomplishments of this amazing woman will inspire viewers.
National Woman's History Museum
Women's History Minute: Dr. Chien-Shiung Wu
Born in Suzhou, China, experimental physicist Dr. Chien-Shiung Wu immigrated to the United States, where she worked on the Manhattan Project. A short video introduces viewers to the amazing achievements of this remarkable woman.
National Woman's History Museum
Women's History Minute: Dorothea Lange
Teach young scholars how to, in the words of Dorothea Lange, see life without a camera by looking at her life through the lens of a short video. Viewers are introduced to Lange's life, her work, and some of her famous photographs.
Mathispower4u
Solve a One Step Equation With Decimals by Adding and Subtracting (Example)
Apply decimal operations to solving equations. Learners first observe two examples of one-step linear equations being solved. They then watch as each equation is solved by either adding or subtracting decimals using strategies they...
Mystery of Matter
Into the Atom, Part 4: The Atom Splits
Scientific discord is part of the road to new discoveries. Scholars learn how scientists challenge each other to prove and explain their conclusions in the final lesson of the four-part series Into the Atom. The video lesson explains the...
Mystery of Matter
Into the Atom, Part 3: Numbering the Elements
Amazing scientific discoveries do not require fancy equipment. An interesting video lesson describes the process historical scientists used to identify the order of elements based on X-ray spectra. Learners discover the complex studies...
Mystery of Matter
Into the Atom, Part 2: The Atom’s First Pieces
Could electrons really be as small as the numbers suggest? This is the hurdle for the initial study of electrical properties of elements. Learners view a video to follow the history of the science that led to the discovery of the parts...
Mystery of Matter
Into the Atom, Part 1: Atoms Have Parts
Finally mysteries are revealed! A thorough lesson shows how the scientific method helps to solve mysteries of now common elements. Young scientists watch the video presentation to gain a thorough understanding of how Madam Curie...
Mathispower4u
Solve a One Step Equation by Multiplying by Reciprocal (a/b)x=-c/d (Example)
There is more than one way to solve an equation. Scholars watch as the presenter solves a one-step equation with fraction multiplication two different ways. Viewers see how to use a reciprocal to solve the equation and also how to clear...
Exploratorium
How Big Is a Virus?
Get a magnified look at cells. Learners see the relative size of cells by virtually viewing a display at the Exploratorium. When the width of a hair is scaled to be almost a foot, a virus is no bigger than a poppy seed. Scholars hear an...
Exploratorium
How Does Soap Inactivate Coronaviruses?
Washing hands is a simple way to stop the spread. Viewers watch a short video on why it is important to wash hands to curtail coronaviruses. The presenter provides an explanation of how soap and alcohol disrupt the membrane of a virus,...
Mathispower4u
Graph a Piecewise Defined Function (Example 1)
Determine what the pieces look like together. The Mathispower4u video for Algebra 1 provides a simple example of graphing a piecewise function. The function is made up of three segments that consist of constant functions. Pupils see...
Mathispower4u
Graph a Piecewise Defined Function (Example 3)
This time, try graphing three segments. Another Mathispower4u Algebra I Video provides an additional example on graphing a piecewise function. Pupils observe how to graph a function that is made from two constant functions and one linear...
Mathispower4u
Graph a Piecewise Defined Function (Example 2)
Take two linear pieces and make a complete graph. A helpful video shows how to graph a linear piecewise function. Pupils review graphing linear functions and then see how to restrict their domains based on the defining domains for the...