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TED-Ed
TED-Ed: Can you solve the fortress riddle? | Henri Picciotto
Bad news: your worst enemies are at the gate. Your fledgling kingdom guards the world's only herd of tiny dino creatures. To you, they're sacred. To everyone else, they're food. The three closest nation-states have teamed up to smash...
SciShow
Superfetation: When You Get Pregnant... Even Though You're Already Pregnant
The process of human baby making seems pretty straightforward: egg+sperm+time=baby. But hold on to your ovaries, folks! It’s pretty rare, but sometimes, days or weeks after a person gets pregnant, they can get pregnant again in a process...
Curated Video
How to Multiply Decimals
Howcast - When multiplying decimals, the key is to keep track of the number of decimal places. Learn how with this guide.
Curated Video
Subtract multiples of ten from 2-digit numbers
Pupil outcome: I can use number facts to subtract multiples of ten from a two-digit number. Key learning points: - When subtracting multiples of ten from a two-digit number, the tens digit changes but the ones digit stays the same. - We...
Curated Video
Represent multiples of ten in an expression or an equation
Pupil outcome: I can represent multiples of ten in a calculation. Key learning points: - Multiples of ten can be represented with addition of tens. - 10 + 10 + 10 is equal to three tens which is equal to 30 - An expression shows the...
Curated Video
Use different strategies to subtract multiples of 100
Pupil outcome: I can use different strategies to subtract multiples of 100 Key learning points: - Known facts help us to subtract multiples of 100 - If 5 subtract 3 is equal to 2 then 5 hundred subtract 3 hundred is equal to 2 hundred. -...
Curated Video
Explain patterns and relationships between the 5 and 10 times tables
Pupil outcome: I can explain the patterns and relationships between the 5 and 10 times tables Key learning points: - When we multiply the same factor by 5 and 10, the product of the factor × 10 is double the product of the factor x 5 -...
Curated Video
Position five-digit multiples of 1,000 on a marked but unlabelled number line
Pupil outcome: I can position five-digit multiples of one thousand on a marked but unlabelled number line. Key learning points: - Counting on and back identifies the unlabelled marks on the number line. - Thinking about the value of the...
Curated Video
Explain how to identify a common multiple of two or more numbers
Pupil outcome: I can explain how to identify a common multiple of two or more numbers. Key learning points: - A common multiple is a multiple which is shared by 2 or more numbers
Curated Video
Explain the relationship between adjacent multiples of seven
Pupil outcome: I can explain the relationship between adjacent multiples of seven Key learning points: - Adjacent multiples of 7 have a difference of 7 - If you add 7 to a multiple of 7 you get the next multiple of 7 - If you subtract 7...
Curated Video
Explain the relationship between adjacent multiples of three
Pupil outcome: You can explain the relationship between adjacent multiples of three Key learning points: - Adjacent multiples of 3 have a difference of 3. - If you add 3 to a multiple of 3 you get the next multiple of 3. - If you...
Curated Video
Solve problems involving adjacent multiples of nine
Pupil outcome: I can solve problems involving adjacent multiples of nine. Key learning points: - Adjacent multiples of nine have a difference of 9 and alternate between odd and even numbers. - If you add 9 to a multiple of nine you get...
Curated Video
Explain the relationship between adjacent multiples of six
Pupil outcome: I can explain the relationship between adjacent multiples of six Key learning points: - Adjacent multiples of 6 have a difference of 6 - If you add 6 to a multiple of 6 you get the next multiple of 6 - If you subtract 6...
Curated Video
Explain the relationship between adjacent multiples of four
Pupil outcome: I can explain the relationship between adjacent (neighbouring) multiples of four. Key learning points: - Adjacent multiples of 4 have a difference of 4 - If you add 4 to a multiple of 4 you get the next multiple of 4 - If...
Curated Video
Use the divisibility rules to find multiples of 3
Pupil outcome: I know the divisibility rule for multiples of 3 and can use it with 3- and 4-digit numbers. Key learning points: - Numbers that can be divided by 3 and leave no remainder are divisible by 3 - To find the digit sum of a...
Curated Video
Explain the relationship between adjacent multiples of nine
Pupil outcome: I can explain the relationship between adjacent multiples of nine. Key learning points: - Adjacent multiples of nine have a difference of 9 - If you add 9 to a multiple of nine you get the next multiple of nine. - If you...
Curated Video
Partition one of the factors in a multiplication equation using representations
Pupil outcome: I can partition one of the factors in a multiplication equation in different ways using representations. Key learning points: - We can easily calculate multiples of a number by adding on or subtracting that number from an...
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...
Curated Video
Explain how many '500s' and '250s', 1,000 is composed of
Pupil outcome: I can explain how many 500s and 250s 1,000 is composed of. Key learning points: - There are two 500s in 1,000 - There are four 250s in 1,000 - Knowing how many 500s and 250s 1,000 is composed of helps to interpret scales...
Curated Video
Explain which is the most efficient factor to partition to solve a multiplication problem
Pupil outcome: I can explain which is the most efficient factor to partition to solve a multiplication problem. Key learning points: - Multiplying a number by a group of numbers added together is the same as doing each multiplication...
Curated Video
Unit Circle 1 - Degrees and Radians
This is the first of several videos about the Unit Circle. In this video, we will define the unit circle and fill in the radians and degrees. This video explains how to DERIVE the unit circle, but not necessarily how to use it.
Curated Video
E Maths O Level 2019 Paper 1 - Question 4b
Welcome to our complete high school mathematics tutorial series! Whether you’re a student preparing for exams, a teacher seeking additional resources, or a parent helping your child succeed in math, these videos cover a wide range of...
Curated Video
Factors and Common Multiples (2019 PSLE Q1)
Learn the trick to finding factors and common multiples easily!
Curated Video
Hercio (Hz)
Unidad de frecuencia del Sistema Internacional. Un hercio equivale a un ciclo por segundo. <br/<br/>>
Twig - Física
Twig - Física