Percents Teacher Resources

Converting percents to decimals, and the other way around, can be tricky. Sal shows young mathematicians how to simplify this process with two sample equations and one word problem.

High schoolers find the percent composition of oxygen in potassium chlorate. In this percent composition lesson plan, students heat a sample of potassium chlorate to decompose it into potassium chloride and oxygen. They weight their...

Learners who view this video will gain a stronger understanding of percent of change. The tutorial provides a formula and a sample problem. As the tutor completes the example, she explains and clarifies each step that she takes to find...

Take young mathematicians' understanding of percents into the real world with this series of word problems. Involving a variety of contexts from calculating scores on math tests and savings account interest, to determining sale prices...

We see percents everywhere! Building a solid understanding of their meaning is important to future mathematics, but also as citizens. Young scholars practice rewriting decimals, percents, and fractions. They also determine percents of a...

Percent of a number? Learn how to set this problem up as a proportion to solve. It's not as hard as you think.

A word problem, chemistry, and percent? I know you want to throw your hands in the air and run away from this problem, but please don't. Pay close attention as the instructor helps you unpack this word problem to set up an equation that...

Multiply a decimal number by 100 to get a percent number. Or take a shortcut and merely move the decimal point two places to the right. But don't forget to write the percent sign after you move the decimal. Otherwise it's just a number...

A percent is a value over 100. You are given a fraction and need to make it a percent. Some calculations will need to be made to find an equivalent fraction. The instructor shows you how to make those calculations to the numerator and...

What percentage of your class understands percents? Pupils learn the meaning of percents based upon rates per 100 in the 24th lesson in a series of 29. They represent percents as fractions, decimals, ratios, and models. The scholars...

A percent is a value over 100. You are given a fraction and need to make it a percent. Some calculations will need to be made to find an equivalent fraction. The instructor shows you how to make those calculations to the numerator and...

Powers of 10 are about moving the decimal around. The instructor illustrates how to move the decimal when it's ten percent or it's one percent. Once you understand this procedure you can do the mental math, in your head of course!

Powers of 10 are about moving the decimal around. The instructor illustrates how to move the decimal when it's ten percent or it's one percent. Once you understand this procedure you can do the mental math, in your head of course!

What number is 40% of 30? Learn the formula and be able to figure out all of the percent problems. The instructor demonstrates the basic formula. Then she shows how and where to plug in the numbers according to what the problem is asking...

Create a percent proportion using the given values in this word problem. Not sure how to set that up? Then watch this short video and see how the teacher sets up this percent proportion according to the given values.

Percent is the number of something per 100. It can be written with a percent sign (%), or as a decimal, or as a fraction- a number over 100.

Percent is the number of something per 100. It can be written with a percent sign (%), or as a decimal, or as a fraction- a number over 100.

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...

The concept of percent discount is very clearly explained in this informative tutorial. Learners will work through a real life discount problem using algebraic reasoning and a clearly outlined procedure. This is a good video.

Pre algebraic learners will be able to master conversion of fractions, decimals, and percents in no time when they use the illustrations on this resource.

Grasp conversion with these excellent fraction, decimal, and percent worksheets that have a graphic model of place value. Mathematicians will grasp the concept in no time.