Khan Academy
Solving for F in Terms of C, Linear Equations, Algebra I
The instructor uses the temperature formula to illustrate how the variables can be manipulated to solve a problem.
Khan Academy
Example: Solving For a Variable, Linear Equations, Algebra I
Sal uses the formula for the perimeter to show how the variables can be moved around to solve a problem. He demonstrates a few different ways to do this.
Khan Academy
Algebraic Word Problem
For most people, solving word problems takes a lot of work. But Sal makes it look simple! Follow along as he unpacks this complicated word problem. He even demonstrates how to answer. Excellent!
Khan Academy
Age Word Problems 3
This presentation demonstrates how to solve an age word problem. It is worth the time it takes to view it.
Khan Academy
Age Word Problems 2
Here are some more age word problems. The instructor uses a chart again to organize the information given. He works through the problem but ends the video with a solution that appears erroneous but is correct. The answer seems too large...
Khan Academy
Ex 1 Age Word Problem
A few word problems involving age are presented. Starting with a simple problem and progressing to more complicated word problems, Sal uses a chart to organize the information given in the more complicated problem to solve for the variable.
Khan Academy
Two Passing Bicycles Word Problem
In this video, Sal solves a word problem sent in by a listener with two cyclists riding towards each other over a given time. It is an interesting problem regarding ratios and the relationship between distance, rate, and time. He shows...
Khan Academy
Challenge Example: Sum of Integers, Linear Equations, Algebra I
The sum of three consecutive odd integers is 231. What is the largest integer? See how to unpack this word problem, set up an equation, and solve for the variable.
Khan Academy
Solving for F in Terms of C, Linear Equations, Algebra I
The instructor uses the temperature formula to illustrate how the variables can be manipulated to solve a problem.
Curated OER
Example: Solving for a Variable, Linear Equations, Algebra I
Sal uses the formula for the perimeter to show how the variables can be moved around to solve a problem. He demonstrates a few different ways to do this.
Khan Academy
Percent Word Problem Example 1, Ratios, rates, and percentages
Guava is on sale in this video. Here, two examples are shown to calculate a discounted rate.
Khan Academy
Word Problem Solving 3
This video focuses on three word problems involving measurements, percentages, and expenditures. Sal shows how to translate word problems into solvable equations.
Khan Academy
Proportion Word Problem (Example 1)
This video elaborates on the basic concept of finding an unknown by analyzing a word problem and then applying one of the techniques seen in the previous video. Tip: Use this word problem as a warm-up before your math lesson.
Mathispower4u
Determine a Basic Piecewise Defined Function
Not all functions have the same equation throughout. Learners see a word problem that requires more than one equation to model the situation. The video from the Mathispower4u Algebra 1 series introduces the concept of piecewise defined...
Corbett Maths
Forming and Solving Equations
Age becomes a problem. Learners see how to set up and solve age word problems. The video goes through two examples of word problems relating the ages of people. The first example uses the relationship between the ages of two people and...
Mathispower4u
Find an Age Given An Average Age and Relationship Between Two Ages (Example)
Apply solving linear equations to averages. A helpful video presents an average age problem given two unknown ages. Pupils learn how to set up the problem from the given information. They see how the equation is reduced to a two-step...
Mathispower4u
Polynomial Subtraction Application - Length (Example)
Cut a piece of molding by subtracting polynomials. Pupils watch a video as the presenter works through an example of a word problem involving the subtraction of polynomials. The problem involves finding the remaining length of a piece of...
Mathispower4u
Direct Variation Applications
What would I weigh there? A video uses the relationship of the weight of an astronaut on Earth and the moon to create a direction variation equation. Using the created equation, pupils find the weight of any astronaut on the moon.
Mathispower4u
Linear Equations in Standard Form
Get in line to explore linear equations. Young mathematicians learn all about linear equations in standard form. An informative video covers writing equations in standard form, using the standard form to graph linear equations, and...
Corbett Maths
Loci Part 3
How do you use a scale drawing to find the region in a lake where a treasure is located? The narrator of a short video problem identifies three criteria to determine the location of the treasure. Using a compass and ruler, he determines...
Mathispower4u
Write and Simplify a Variable Expression for Age (ax+b)
Age is just a number. The resource develops a multi-step expression to represent a person's age. Using the video, the presenter creates expressions for the age of four different people that build upon each other. The final age requires...
Mathispower4u
Writing Basic Algebraic Expressions (Example 2)
Just how much farther? A helpful video provides an example in determining an algebraic expression involving distance traveled. Graphics provide an illustration to demonstrate how to find the remaining distance to travel given a known...
Math Antics
Finding a Percent of a Number
Use the knowledge of multiplying fractions to find a percent of a number. The video builds the process to find the percent of a number by recalling that the word of in fraction problems meant to multiply. Finding the percent of a...
Krista King Math
Ratio and Proportion, Word problems
Combine several mathematics concepts as classes solve linear systems. After writing a system of equations involving a proportion, learners then solve the system. A video instructor uses the substitution method and must work...