Just One!

Just one step is all you need to find success in solving equations. The 27th installment in a series of 36 teaches how to solve one-step equations involving addition and subtraction. Tape diagrams help future mathematicians in this task.

Using a number line, pupils are asked to identify which of four fractions is closest to one half. Includes a single problem that can serve as a practice problem or formative assessment for 3rd or 4th graders learning to partition number...

The object is to model fraction division by asking “How many are in one group?” It is a difficult concept to understand, but developing the model that shows one cup to a certain amount of container or one container to a certain amount of...

Young mathematicians dive into the number line to discover decimals and how the numbers infinitely get smaller in between. They click the zoom button a few times and learn that the number line doesn't just stop at integers. Includes a...

Introduce your class to solving one-step equations. In this short video, Sal walks through the process of solving simple equations. He solves the problem and then shows how to check the answer by completing the inverse operation.

Help your students understand how to use their algebraic reasoning to solve a one-step equation, where they must solve for X. Add this video to a lesson or assign it as homework.

Practice problems are great ways to engage your charges with a new concept. Sal solves for x + 8 less than or equal to 6 and then graphs the solution. First, he subtracts 8 from both sides, and then he subtracts 6. Next, he draws a...

Understanding place value is a basic mathematics skill. This Khan Academy video shows students how to write the number 14,897 in the expanded form. He explains that the 7 in the ones place is the same as 7x1, the 9 in the tens place is...

The method of converting a mixed number to an improper fraction is fully explained in this video. Sal completely details how and why one is able to convert a mixed number. He uses multiple colors and drawings to demonstrate the...

There are two Khan Academy videos on representing numbers as decimals, percents, and fractions. This one shows students how to represent a fraction as a decimal and a percent. Sal demonstrates the process used to convert the fraction 7/8...