In this lesson, students will learn how to add decimals using a number line. Review number lines and how they can represent both whole numbers and fractions. Understand the importance of correctly marking fractions on the number line....

In this video, students learn how to add and subtract money using mental math. They practice skip counting to find the total amount and calculate change. The video emphasizes the importance of understanding that change should be less...

The concepts of work and power help us unlock and understand many of the physical laws that govern our universe. In this Lesson, Peter Bohacek explores the interplay of each concept when applied to two common objects---a lightbulb and a...

In the previous video, you learned about creating a bank account object and setting its attributes. In this lesson, you will learn more about the methods and understand how the object behaves with the methods imparted.
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In this video, the teacher explains how to model and solve problems involving linear inequalities with multiple variables. Using the example of determining the number of different types of stamps needed for a specific amount of postage,...

In this video, the teacher explains how to make change in money word problems by using a number line. The students learn about friendly numbers and how to add up on the number line to determine the amount of change.

In this lesson, we are introduced to finding the mean and calculating the deviations from the mean for a set of data. Through a real-life example of shopping expenses for boys and girls, students practice finding the mean absolute...

The video explains how grouping and ungrouping can be useful in math. It demonstrates how to find many combinations for the same number by breaking it down into smaller parts of equal value and then grouping them back together. It...