The Hubble Space Telescope has made over 1.5 million observations since its launch in 1990, capturing stunning subjects such as the Eagle Nebula and producing data that has been featured...

In this lesson, students will learn how to solve addition problems using complements of 10 and their multiples. Complements of 10 are pairs of numbers that add up to 10, and understanding these complements is essential for understanding...

In this video, the teacher explains how to round numbers that end in nines using base 10 blocks and place value concepts. The students learn how to identify benchmark numbers and the midpoint between them to determine whether to round up...

In this video, the teacher explains how to determine the percent rate of change using exponential models. They review compound interest and linear functions, and then go on to discuss exponential growth and depreciation.

Which travels faster, Usain Bolt or a formula 1 car? In this video we’ll find out how to calculate speed using distance and time… Which we’ll then use to work out the answer to who’s faster. Speed is a measure of the distance an object...

In this video, students learn about the importance of place value in determining the value of digits in a number. They are introduced to the concept of base 10 blocks and a place value chart to help them understand how each digit's...

In this video, students learn how to represent numbers with zeros in numeric word and expanded form using base 10 blocks and place value charts. The importance of understanding the value of each digit based on its place within the number...

In this lesson, students learn how to subtract decimals using a place value chart. They understand the concept of place value and the importance of regrouping when subtracting numbers.

Restriction Enzyme Set: 1. This clip introduces DNA-snipping restriction enzymes and takes a simplified look at how enzymes function.

This live-action video program is about the word Galaxy. The program is designed to reinforce and support a student's comprehension and retention of the word Galaxy through use of video footage, photographs, diagrams and colorful,...

This video is an educational lesson that teaches about place value and how to understand the relationship between the different place values within a number. The lesson explains how to count the number of ones, tens, and hundreds that...

In this video, students learn how to skip-count by 10s and 100s from any number using base-10 blocks. The teacher explains that skip-counting is counting by an amount larger than 1 and can start from any number. Students practice...

This video teaches how to round numbers to the nearest hundred using base ten blocks. It begins with a review of base ten blocks and place value charts. Then, the video explains the process of rounding by considering the midpoint and...

Learn all about numbers in Spanish. This clip is part 1 in the series 'Learning Spanish: Beyond the Basics'.

In this lesson, students learn how to interpret the rate of change of a line of best fit by calculating the slope. They review the concept of slope as the ratio of change in Y to change in X, also known as rise over run. The lesson...