Instructional Video24:27
Curated Video

Add three addends efficiently by finding two addends that total 10

Pre-K - Higher Ed
Pupil outcome: I can use my knowledge of number pairs to 10 to add three addends efficiently. Key learning points: - The order of the addends can change and the sum stays the same. - When adding three addends, it is efficient to first...
Instructional Video19:07
Curated Video

Partition two-digit numbers into tens and ones

Pre-K - Higher Ed
Pupil outcome: I can represent and interpret the structure of two-digit numbers on part-part-whole and bar models. Key learning points: - Two-digit numbers can be partitioned into tens and ones. - The order of the digits indicates their...
Instructional Video24:22
Curated Video

Use divisibility rules for multiples of 6

Pre-K - Higher Ed
Pupil outcome: I can use divisibility rules for multiples of 6 Key learning points: - For every one group of 6 there are two groups of 3 - For a number to be divisible by 6, it must be divisible by both 2 and 3
Instructional Video22:58
Curated Video

Use different strategies to add multiples of 100

Pre-K - Higher Ed
Pupil outcome: I can use different strategies to add multiples of 100 Key learning points: - Known facts help us to add multiples of 100 - If 3 plus 2 is equal to 5 then 3 one-hundreds plus 2 one-hundreds is equal to 5 one-hundreds. -...
Instructional Video24:43
Curated Video

Use number pairs to 10 in subtraction contexts

Pre-K - Higher Ed
Pupil outcome: I can use number pairs to ten to solve subtraction problems and equations. Key learning points: - Our knowledge of pairs that sum can help when solving subtraction problems and equations. - Quickly remembering these number...
Instructional Video23:27
Curated Video

Subtracting numbers that bridge through 10

Pre-K - Higher Ed
Pupil outcome: I can subtract through 10 using bridging. Key learning points: - When the subtrahend is bigger than the ones value of the minuend, we will have to bridge through 10 - Composition of numbers to 10 allows us to partition...
Instructional Video24:49
Curated Video

Use known facts to find pairs of numbers that total 100

Pre-K - Higher Ed
Pupil outcome: I can use known facts to find pairs of numbers that total 100 Key learning points: - Number facts to 10 can be applied to multiples of 10 - If 3 plus 2 is equal to 5 then 3 tens plus 2 tens is equal to 5 tens. - When you...
Instructional Video25:39
Curated Video

Subtract by bridging a multiple of ten

Pre-K - Higher Ed
Pupil outcome: I can bridge ten to subtract single digit numbers from two-digit numbers. Key learning points: - When we subtract a one-digit from a two-digit number, the equation may be solved more efficiently by 'bridging ten'. - When...
Instructional Video26:06
Curated Video

Bridge 100 by adding or subtracting a single-digit number

Pre-K - Higher Ed
Pupil outcome: I can bridge 100 by adding or subtracting a single-digit number. Key learning points: - Knowledge of number facts to 20 can support calculation across the 100 boundary. - If 8 plus 7 is equal to 15 then 98 plus 7 is equal...
Instructional Video25:53
Curated Video

Addition by bridging through 10

Pre-K - Higher Ed
Pupil outcome: I can add two numbers by bridging through ten. Key learning points: - Partitioning addends supports bridging 10. - Pairs to 10 can be used to add two or more addends.
Instructional Video31:30
Curated Video

Use known facts to find complements to 100 efficiently

Pre-K - Higher Ed
Pupil outcome: I can use known facts to find complements to 100 efficiently. Key learning points: - Number facts to 10 can be applied to multiples of 10 - Using pairs to 10 and pairs to 100 we can find pairs to 100 - If we have a pair to...
Instructional Video31:49
Curated Video

Pupils use strategies to make solving calculations more efficient

Pre-K - Higher Ed
Pupil outcome: I can use strategies to make solving calculations more efficient. Key learning points: - Equivalent calculations can be used with the same difference or same sum to make calculations ‘easier’. - A number line can be used...