Videos

Add 3-Digit Numbers
Add 3-Digit Numbers
In this video, Alex learns how to use place values to add 3-digit numbers.
Can You Power an Electric Clock with...Lemons?!
Can You Power an Electric Clock with...Lemons?!
This video demonstrates an electric clock being powered by a large group of lemons wired together to form a natural battery. Viewers are challenged…
Determining Rational, Irrational, and Real Numbers
Determining Rational, Irrational, and Real Numbers
Use this video to show students the difference between rational and irrational numbers, integers, whole, and natural numbers.
Estimate Differences
Estimate Differences
In this video, Alex and Marta learn how to estimate differences by rounding numbers.
Force and Friction: How an Object Moves
Force and Friction: How an Object Moves
Explore force, friction, and the movement of objects. This video demonstrates how a student in a wheelchair uses force throughout the day to move…
Grammar Song: Sentences
Grammar Song: Sentences
A sentence is a group of words that begin with a capital letter. This video shows the two parts of a sentence: the subject followed by predicate.…
Hippo and Baboon Use of Senses
Hippo and Baboon Use of Senses
Find information and a video about the highly social hippo and baboon who use their senses of smell, sight, and touch to find a mate and defend their…
How to Find Area of a Circle
How to Find Area of a Circle
This video demonstrates how students can use what they know about the area of a parallelogram to find the area of a circle.
Kangaroo and Koala Use of Senses
Kangaroo and Koala Use of Senses
Find information and a video about the kangaroo and koala who use their senses of smell, sound, and touch to find a mate and defend their territory…
Multiply 4-Digit by 1-Digit Numbers
Multiply 4-Digit by 1-Digit Numbers
In this video, Alex and Marta learn how to multiply 4-digit numbers and 1-digit numbers using place values.