Instructional Video5:03
TED-Ed

TED-Ed: Can you solve the fortress riddle? | Henri Picciotto

Pre-K - Higher Ed
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...
Instructional Video6:23
SciShow

Superfetation: When You Get Pregnant... Even Though You're Already Pregnant

12th - Higher Ed
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...
Instructional Video1:33
Curated Video

How to Multiply Decimals

9th - Higher Ed
Howcast - When multiplying decimals, the key is to keep track of the number of decimal places. Learn how with this guide.
Instructional Video18:54
Curated Video

Subtract multiples of ten from 2-digit numbers

Pre-K - Higher Ed
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...
Instructional Video20:17
Curated Video

Represent multiples of ten in an expression or an equation

Pre-K - Higher Ed
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...
Instructional Video22:48
Curated Video

Use different strategies to subtract multiples of 100

Pre-K - Higher Ed
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. -...
Instructional Video24:24
Curated Video

Explain patterns and relationships between the 5 and 10 times tables

Pre-K - Higher Ed
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 -...
Instructional Video15:56
Curated Video

Position five-digit multiples of 1,000 on a marked but unlabelled number line

Pre-K - Higher Ed
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...
Instructional Video23:03
Curated Video

Explain how to identify a common multiple of two or more numbers

Pre-K - Higher Ed
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
Instructional Video19:26
Curated Video

Explain the relationship between adjacent multiples of seven

Pre-K - Higher Ed
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...
Instructional Video24:18
Curated Video

Explain the relationship between adjacent multiples of three

Pre-K - Higher Ed
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...
Instructional Video21:43
Curated Video

Solve problems involving adjacent multiples of nine

Pre-K - Higher Ed
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...
Instructional Video21:42
Curated Video

Explain the relationship between adjacent multiples of six

Pre-K - Higher Ed
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...
Instructional Video19:04
Curated Video

Explain the relationship between adjacent multiples of four

Pre-K - Higher Ed
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...
Instructional Video24:42
Curated Video

Use the divisibility rules to find multiples of 3

Pre-K - Higher Ed
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...
Instructional Video24:54
Curated Video

Explain the relationship between adjacent multiples of nine

Pre-K - Higher Ed
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...
Instructional Video25:23
Curated Video

Partition one of the factors in a multiplication equation using representations

Pre-K - Higher Ed
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...
Instructional Video25:38
Curated Video

Add and subtract multiples of ten

Pre-K - Higher Ed
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...
Instructional Video26:27
Curated Video

Explain how many '500s' and '250s', 1,000 is composed of

Pre-K - Higher Ed
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...
Instructional Video26:18
Curated Video

Explain which is the most efficient factor to partition to solve a multiplication problem

Pre-K - Higher Ed
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...
Instructional Video5:42
Curated Video

Unit Circle 1 - Degrees and Radians

6th - Higher Ed
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.
Instructional Video3:32
Curated Video

E Maths O Level 2019 Paper 1 - Question 4b

9th - Higher Ed
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...
Instructional Video3:13
Curated Video

Factors and Common Multiples (2019 PSLE Q1)

K - 8th
Learn the trick to finding factors and common multiples easily!
Instructional Video0:54
Curated Video

Hercio (Hz)

3rd - 8th
Unidad de frecuencia del Sistema Internacional. Un hercio equivale a un ciclo por segundo. <br/<br/>>

Twig - Física