This program provides a conceptual foundation to help students understand how to convert between English and metric units of mass, volume, length, and temperature. The program also discusses how it is possible to convert between units of...

In this video, Jabzy brings us historical tidbits and unknown facts about the Peasants Revolt

In this video, students will learn how to use a number line to compare lengths and calculate distances. They will explore examples of using a ruler and a number line to measure and compare lengths. The video also demonstrates how to add...

I ask Anne Wojcicki, founder and CEO of 23andMe to answer some logic and physics riddles. Yes, it's mean and fun.

Researchers on board the research vessel Atlantis have discovered a deep-sea coral reef about 160 miles off the coast of Charleston, South Carolina.

In this video, the teacher explains how to simplify a rate to its unit rate using a tape diagram. The teacher also highlights the common mistake of only considering one unit rate and emphasizes the importance of recognizing that there...

This video teaches students how to determine if their answers make sense by using estimation before solving problems. It emphasizes the importance of understanding units and thinking about the context of the problem to avoid making...

That plane is supersonic. How fast do you think that is? In this video we’ll look at the speed of some everyday items. You should already know that speed is a measure of the distance an object travels in a certain time, and that it’s...

Researchers keep tabs on deforestation in the Amazon by satellite imagery, but to know the reality of what's causing it, you have to be on the ground. Watch this video of researchers Robert Walker's and Eugenio Arima's recent Amazon...

This video lesson will provide instruction for students to learn how to find a rate from the graph of a proportional relationship. Students will be instructed how to interpret a point on a graph and use this to find the unit rate. We...

Using animated graphics and footage, this video helps students learn that a decimal number is based on the number 10, and has a decimal point. Viewers will come to understand that people use decimals in measurements and calculations and...

In this video, a teacher and students conduct a science experiment to create a stinky concoction using various ingredients like garlic, cheese, fish, and orange juice. They explore the concept of the corpse flower and its foul smell,...

This video explains how to represent a situation involving two runners, Mark and Paul, on a coordinate plane. By graphing ordered pairs, we can visually compare their running times and distances. The video demonstrates how to plot...

Learn how to write an equation that represents the proportional relationship between distance and time. Review how to find the unit rate and emphasize that distance should be divided by time to get the correct ratio. Using a table and...

In this video, the teacher explains how to find the percent of change and determine the percent the final amount is of the original amount. They demonstrate three different approaches: using diagrams, proportions, and equations.

In this lesson, mathematicians will learn how to place improper fractions and mixed numbers on a number line. By splitting the number line into equally sized pieces and using rectangles, students will be able to accurately locate these...

In this video, the teacher explains how to use scale maps and scale models to find the actual distance between two points or the dimensions of an object. They demonstrate how to calculate the distance using unit rates and provide...

This video illustrates how length and temperature are measured using common lab equipment. Students are shown how to accurately measure length using tools such as meter sticks and metric rulers, and how to record their observations....

This video explores the historical use of maps and compasses in exploration. Students will learn how a compass works, how to place a compass on a map and how to navigate with a compass. The program discusses a compasses relationship...

The theory that the asteroid which made all non-avian dinosaurs extinct also sent a mile-high tsunami crashing into North America has been further confirmed by the discovery of fossilised ‘megaripples.’

In this video, the teacher explains how to simplify a rate to its unit rate using diagrams. They emphasize that a unit rate is a comparison of one quantity to another, reduced to something over 1. The teacher provides examples and...

In this lesson, mathematicians learn how to divide whole numbers by fractions using models. They are taught to think of the division as how many groups of the fraction are in the whole number.

In this video, students learn how to find a fractional unit rate by using a graph. The teacher explains that unit rates can be expressed as fractions instead of decimals, and provides examples of how to calculate unit rates from graphs....