Videos
![2 and 5 as Factors](/sites/infoplease.com/files/styles/scale220w/public/thumb_large_OWRJxOzc-720.jpg?itok=fEJMewRQ)
2 and 5 as Factors
In this video, Carlos learns about patterns in the multiplication of 2 and 5.
![Acid-Base Neutralization Reactions](/sites/infoplease.com/files/styles/scale220w/public/thumb_large_poster_0000.jpg?itok=lHub_Q9z)
Acid-Base Neutralization Reactions
This video demonstrates the neutralization reaction that takes place when combining a strong acid (hydrochloric acid) with a strong base (sodium…
![Add 3-Digit Numbers](/sites/infoplease.com/files/styles/scale220w/public/thumb_large_o49nA6or-720.jpg?itok=WOY0qIob)
Add 3-Digit Numbers
In this video, Alex learns how to use place values to add 3-digit numbers.
![Add and Subtract Fractions](/sites/infoplease.com/files/styles/scale220w/public/thumb_large_0mTWNPIl-720.jpg?itok=WdAe4E_P)
Add and Subtract Fractions
In this video, Jada learns how to use common denominators for addition and subtraction.
![Add More Than Two 2-Digit Numbers](/sites/infoplease.com/files/styles/scale220w/public/thumb_large_oMNmUH9P-720.jpg?itok=2DHc5lX9)
Add More Than Two 2-Digit Numbers
In this video, Daniel learns how to add multiple 2-digit numbers using place value, tens and ones.
![Add Using Mental Math](/sites/infoplease.com/files/styles/scale220w/public/thumb_large_3WSLeCNY-720.jpg?itok=CK1kdr0i)
Add Using Mental Math
In this video, Alex learns how to add 3-digit numbers uses mental math to add hundreds.
![Adding Decimals Using Mental Math Grade 5](/sites/infoplease.com/files/styles/scale220w/public/thumb_large_My0kj3pJ-720.jpg?itok=hm8ljO4L)
Adding Decimals Using Mental Math Grade 5
In this video, Carlos learns how to mentally add numbers with decimals.
![Adolf Hitler: Germany's New Chancellor](/sites/infoplease.com/files/styles/scale220w/public/thumb_large_kJqVMpfL-720.jpg?itok=WGVxETzO)
Adolf Hitler: Germany's New Chancellor
Watch this video about how Germany reacts to the end of World War I and the Treaty of Versailles by electing Adolf Hitler as chancellor, who…
![Bar Graphs](/sites/infoplease.com/files/styles/scale220w/public/thumb_large_5g8RgjDR-720.jpg?itok=mVMzsKth)
Bar Graphs
In this video, Emily learns how to read numerical data from bar graphs.
![Bat and Owl: Night Hearing](/sites/infoplease.com/files/styles/scale220w/public/thumb_large_RmnHb4ZK-720.jpg?itok=4QT9-s4P)
Bat and Owl: Night Hearing
Find information and a video about the nocturnal predator bat, its use of echolocation to find prey and ultrasound songs to attract a mate.