SciShow
What's Really Behind The Adderall Shortage?
You may have heard that there's an ongoing shortage of the medication Adderall. But there's a lot more going on here than you may expect, and the real culprit behind the shortage isn't what you might think.
Curated Video
Mastering Addition: Adding Numbers with Place Values
New ReviewThis video is a beginner's guide to addition, explaining how addition is used in everyday situations such as banking and shopping. It breaks down the concept of addition as combining two or more numbers to get a larger number, known as...
Curated Video
Add And Subtract Expressions
New ReviewA video entitled "Add and Subtract Expressions" which shows how before adding and subtracting expressions it's important to understand written and unwritten coefficients.
Curated Video
Add and Subtract Rationals
New ReviewA video entitled "Add and Subtract Rationals" which shows how to use a least common denominator to rewrite rational fractions so that they can be added or subtracted.
Curated Video
How to Create a Classic Updo
Howcast - Add instant elegance to your look by pulling your hair into a classic updo.
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How to Look Taller
Howcast - Add inches to your appearance without wearing 12-inch platform shoes.
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How to Make Teardrop Chandelier Earrings
Howcast - Add a touch of elegance to your accessories with these fun-to-make earrings.
Curated Video
Find the missing part in addition and subtraction stories
Pupil outcome: I can solve addition and subtraction stories where the ‘end’ of the story is missing. Key learning points: - The more that is added to an amount at the start of an addition, the greater the amount at the end of the story...
Curated Video
Find the missing part of an addition story
Pupil outcome: I can find the missing part of a ‘First, then, now’ addition story. Key learning points: - When we know two parts of a ‘First, then, now’ story, we can find the missing part.
Curated Video
Find the missing part of a subtraction story
Pupil outcome: I can find the missing part of a subtraction story when the other two parts are known. Key learning points: - When an amount is changed by subtracting, to undo the change, we must add the same amount back on. - The amount...
Curated Video
Use knowledge of facts and unitising to add and subtract multiples of ten
Pupil outcome: I can use knowledge of known facts and unitising to add and subtract multiples of ten. Key learning points: - Tens numbers can be added to or subtracted from a multiple of ten. - When you add a tens number to a multiple of...
Curated Video
Use knowledge of addition facts within 10 to add within 20
Pupil outcome: I can use knowledge of addition facts within 10 to add within 20 Key learning points: - Addition facts within ten can be applied to addition within 20, e.g. if 3 + 2 is equal to 5 then 13 + 2 is equal to 15 - A number line...
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Create addition and subtraction stories
Pupil outcome: I can make addition and subtraction stories and write equations to match. Key learning points: - If starting with and adding/subtracting the same amount, the number at the end of the story will be the same. - When more are...
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Know that addition and subtraction are inverse operations
Pupil outcome: I can recognise addition and subtraction as the inverse of each other. Key learning points: - Addition is the inverse of subtraction. Addition can 'undo' subtraction. - Subtraction is the inverse of addition. Subtraction...
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Represent the inverse relationship between addition and subtraction
Pupil outcome: I can interpret and represent the inverse relationship between addition and subtraction. Key learning points: - Addition is the inverse of subtraction. Addition can 'undo' subtraction. - Subtraction is the inverse of...
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Addition and subtraction involving zero
Pupil outcome: I can add and subtract zero and know when the difference is zero. Key learning points: - When zero is added to a number the number, the number does not change. - When zero is subtracted from a number, the number does not...
Curated Video
Represent addition and subtraction facts within 10
Pupil outcome: I can represent addition and subtraction facts within 10 Key learning points: - Representing a problem can help us to find addition and subtraction facts. - In addition, we can change the order of the addends and the sum...
Curated Video
Add and subtract multiples of ten
Pupil outcome: I can add and subtract multiples of ten. Key learning points: - Unitising and known facts help you to add and subtract multiples of ten. - If 3 + 2 is equal to 5 then 3 tens + 2 tens is equal to 5 tens which is equal to 50...
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Solve problems using knowledge of addition and subtraction of multiples of 10
Pupil outcome: I can solve problems by applying different strategies for adding and subtracting multiples of 10 Key learning points: - Representations help to identify the calculation needed to solve a problem. - Different strategies can...
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Solve problems involving multiples of ten in a range of contexts
Pupil outcome: I can solve problems involving multiples of ten in a range of contexts. Key learning points: - Unitising and known facts help you to add and subtract multiples of ten - If 3 + 2 is equal to 5 then 3 tens + 2 tens is equal...
Curated Video
Solve problems involving multiples of ten
Pupil outcome: I can solve problems involving multiples of ten. Key learning points: - Unitising and known facts help you to add and subtract multiples of ten - If 3 + 2 is equal to 5 then 3 tens + 2 tens is equal to 5 tens which is...
Curated Video
Mean
The average value of a set of data, calculated by adding all the values and dividing by the number of values. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual...
Curated Video
Singular Possessive Nouns
Mr. Griot explains how to change a singular noun to show possession.
Curated Video
Commutative and Associative Addition and Multiplication
Mr. Addit applies the commutative and associative properties to both addition and multiplication problems and shows examples.