Curated OER
How Do You Solve a Word Problem Using the Elimination by Subtraction Method?
Use word problems to teach systems of equations! The instructor in this video demonstrates how to solve a word problem using a system of equations and the elimination by subtraction method. She goes through each step, carefully...
National Education Association
Interpret the Rate of Change/Slope and Intercepts within the Context of Everyday Life
Rates of change can be a slippery slope. The resource makes the connection between the rate of change and the slope of a line. It continues on to provide examples of how to interpret the slope and the y-intercepts of linear equations...
National Education Association
Scatter Plots
What's my line, anyway? A video covers the aspects of finding an equation of the best-fit line for a set of data. It works through plotting the points to drawing a line that appears to represent the data. The presenter suggests finding...
Curated OER
Translate Word Phrases and Sentences into Equations
Use this video to show your learners an example of how to translate word phrases into an equation to solve a real-world problem. The presenter begins with a review of how to use cross products to solve a proportion, including how to do...
Curated OER
What Does the Constant 'k' do in y = |x|+k?
How do you translate absolute value equations vertically? What's a parent equation? What is a constant k in an equation? How does the value of the constant k change the graph of the equation vertically? So many questions. Watch as the...
Curated OER
What Does the Constant 'h' do in y = |x-h|?
Translating the graph of an absolute value equation horizontally based on the value of a constant, seems to be a big task. That sentence was a mouthful. So what does it all mean? Click on this video to observe the instructor illustrate...
National Education Association
Perpendicular and Parallel Lines
Provide the definitions of parallel and perpendicular lines, as well as the relationships between their slopes. Two examples explain the process of finding the equation of either a perpendicular or parallel line to another line through a...
Curated OER
How Do You Use an Equation with Consecutive Numbers to Solve a Word Problem?
Mrs. Jenkins has five children. How old is each one of them? A big word problem with lots of numbers to figure out. Show this video to your class! The more exposure your learners have to word problems, the more comfortable they will be...
Curated OER
Word Problem Solving 3
Three word problems involving measurements, percentages, and expenditures are the focus of this video. Sal shows how to translate word problems into solvable equations.
National Education Association
Independent and Dependent Variable
Introduce learners to independent and dependent variables with an informative video.The two variables are defined via inputs and outputs. It makes clear that the independent variable is the one that the person has control over, while the...
Curated OER
How Do You Use Addition to Solve an Inequality Word Problem?
Word problems. Inequalities. Money. What? Does Marissa have enough money left in her bank account to go to the movies? One variable, two given amounts. Set up this inequality to determine how much Marissa needs to have in her bank...
Curated OER
How Do You Use Subtraction to Solve an Inequality Word Problem?
Don't be afraid of this word problem because it has an inequality. There is only one variable and this inequality can be solved in one step. It's pretty straightforward.
Curated OER
The Mole and Avogadro's Number
Sal introduces chemistry students to the concept of "moles." He points out that a mole is number that helps a student to translate between grams and atomic mass units of any substance. Sal uses the element Aluminum to illustrate this...
National Education Association
Solving Absolute Value Inequalities
You know how to find absolute values and you know how to solve inequalities — but what happens when these two concepts are in the same problem? A YouTube video first reviews absolute values and moves on to solving absolute value...
Khan Academy
SAT Prep: Test 6 Section 3 Part 4
The strength of this video lies in Sal's ability to immediately translate word problems to equations - a skill that might allow many SAT takers to have a better chance at finding the correct answer. If students watch him practice this...
Curated OER
Word Problem Solving Plan 1
Word problems are a problem no more with this helpful and informative video. Sal demonstrates different ways to solve typical algebraic word problems (and one geometry problem), especially how to translate the word problem into an...
Khan Academy
Shifting functions
Though Sal expects that viewers are "reasonably familiar" with square roots, he takes this opportunity to explain some of the notation, and how to graph square root functions. He uses a graphing calculator from my.hrw.com/math06 to...
Curated OER
Division of Rational Numbers
Practicing dividing fractions first in a straightforward equation, Sal translates those skills for use in a word problem later in the video. This lesson would be helpful for those who struggle to understand what word problems are truly...
Curated OER
How Do You Solve a Word Problem Using an Absolute Value Inequality?
After reading this inequality word problem, young learners might just skip over it and not even make the attempt to solve it. It seems rather complicated. So watch this video as the teacher explains all that needs to be done to solve...
National Education Association
Use Coordinate Geometry to Represent and/or Solve Problems
A geometry video explains how to solve for midpoint, length of a line, and use the Pythagorean Theorem. It includes multiple guided practice problems for all three equations.
Curated OER
How Do You Solve a Word Problem Using the Direct Variation Formula?
Have your class figure out how much "Teddy" weighs on the moon and how to translate words into algebra! This video shows pupils how to take a word problem, and then solve it using the direct variation formula and given information. Great...
Curated OER
How Do You Solve a Word Problem By Writing an Inequality?
An inequality in a word problem? And there's a fraction too? As if word problems weren't hard enough? You can do this, just follow along as the instructor explains each step in solving this word problem.
Northeast Arkansas Education Cooperative
Interpret The Rate of Change /Slope in the Context of Everyday Life
Find slope all around us and calculate the rate of change during this video that uses real-life situations. Your learners will start by creating a table to see how each change creates the pieces of slope. Plug that slope into your...
JFR Science
Gas Laws: Why Do My Tires Deflate in Winter?
How many phenomena in the natural world can you explain through the relationship between temperature, pressure, and volume? Science scholars explore the gas laws with a video from JFR Science. Topics include manipulating gas laws...