We found 496 resources with the keyterm variable
Airplane Tails and Wings: Are You in Control?Lesson Planet
5th - 7th
Keep everything under control. The instructional activity, the 16th segment in a 22-part unit, provides a more detailed look at the parts of a plane, specifically the control surfaces. Pupils learn about the construction of the wings and...
Study Jams! Addition & Subtraction EquationsLesson Planet
5th - 7th CCSS: Adaptable
Zoe is decorating a cake for her grandpa's birthday and needs to know how many more candles to add. Follow along as she explains how to set up and solve algebraic equations in this step-by-step presentation. Equations with negative...
Read and Write an Algebraic Expression Containing a VariableLesson Planet
4 mins 5th - 7th CCSS: Designed
How do you write five less than a number as a mathematical expression? Show algebra learners how to read and write algebraic expressions by using variables with this introductory video. The first in a series, the video models how to...
Teacher Appreciation - Tom AndrewsLesson Planet
3 mins 5th - 8th
Spangler interviews Tom Andrews, a middle school science teacher. Mr. Andrews demonstrates a few simple activities that can be used to teach your class about the independent variable in a scientific investigation. Then the class members...
How Do You Figure Out Whether a Percent of Change is an Increase or a Decrease?Lesson Planet
7 seconds 6th - 8th
Another word problem to figure out. Well, first off you are trying to figure out the percent of something and this means your formula will be a proportional equivalent. Once you have the known terms in the correct places you can figure...
How Do You Solve a Proportion Using the Multiplication Property of Equality?Lesson Planet
4 mins 6th - 9th
Solve a proportion where the variable is the numerator of one of the fractions. How? Just use the multiplication property of equality. This means multiply both sides by the reciprocal value of the denominator. Then the variable will be...
How Do You Solve a Decimal Inequality Using Division with Negative Numbers?Lesson Planet
6 mins 6th - 9th
If your class is studying inequalities, consider this video. The focus is on solving a decimal inequality that has negative numbers in it. A lecturer works through an example problem, commenting on the steps and properties necessary to...
How Do You Solve a Decimal Inequality Using Addition?Lesson Planet
3 mins 8th - 9th
In order to solve this inequality use the addition property of inequality to isolate the variable. Don't forget that these are decimal numbers. So be sure to line up the decimals according to the rules of adding decimals.
How Do You Solve an Equation With Fractions With The Same Denominators Using Addition?Lesson Planet
4 mins 8th - 11th
You have an equation with an unknown variable and fractions. How do you solve this kind of equation? You can do it using the addition property of equality to first isolate the variable. Then, combine the fractions and since they have a...
How Do You Solve a Decimal Equation Using Subtraction?Lesson Planet
4 mins 8th - 9th
Solve this algebraic equation by isolating the variable. In this one-step problem that is done by using the subtraction property of equality. There are decimal numbers in this equation so be sure to line up the numbers according to the...
How Do You Find the Length of a Rectangle if You Know its Width and Area?Lesson Planet
3 mins 6th - 7th
Learn how to use the formula for area to solve a problem about a rectangle. The demonstrator shows how to plug in the known values of a rectangle, and then how to use the formula for area to solve for the variable in question.
How Do You Set Up a Percent Proportion From a Word Problem?Lesson Planet
2 mins 6th - 9th
So x amount of people were surveyed and 68 of them said algebra was their favorite subject. Set up a percent proportion to identify the number of people surveyed. That's often the hardest part, setting up the equation. So observe the...
How Do You Figure Out Sales Tax?Lesson Planet
2 mins 6th - 8th
Sales tax always increases the price of your purchases. How can you figure out how much you'll be paying in full? Teach your class how to figure out their total cost, including sales tax, with this video. Using an example of a pair of...
How Do You Figure Out the Time Traveled if You Know Distance and Speed?Lesson Planet
2 mins 6th - 9th
Yes, it's a word problem, but you know the formula for distance, d=rt. The word problem here gives you two values so all you have to do is plug them into the correct place and solve. Don't forget to use the division property of equality...
How Do You Find Angle Measures for Adjacent Angles?Lesson Planet
4 mins 6th - 10th
Two angles with given values are adjacent. Together they are 172.5 degrees. How do you find the degree of one of the angles? You will have to write an algebraic equation with the given information to solve for the value of the variable....
How Do You Evaluate an Expression with Exponents?Lesson Planet
3 mins 7th - 9th
An algebraic expression and a given value for the variable. Use the substitution property of equality to plug in the given value and solve the expression. Be careful and use the order of operations correctly because there is an exponent...