Instructional Video23:32
Curated Video

Find 10 more or less than a 2-digit number.

Pre-K - Higher Ed
Pupil outcome: I can find 10 more or 10 less than a two-digit number. Key learning points: - When finding 10 more or 10 less than any two-digit number, the ones digits does not change. - When finding 10 more than a number below 100, the...
Instructional Video23:50
Curated Video

Know that addition and subtraction are inverse operations

Pre-K - Higher Ed
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...
Instructional Video23:49
Curated Video

Finding the missing numbers

Pre-K - Higher Ed
Pupil outcome: You can work out what the missing number is on a number track or number line. Key learning points: - Secure knowledge and recognition of the digits 0-10 to work out missing numbers on both number track and number lines.
Instructional Video18:59
Curated Video

Explain how a divisor of one affects the quotient

Pre-K - Higher Ed
Pupil outcome: I can explain how a divisor of one affects the quotient. Key learning points: - If the divisor is equal to 1, then the dividend and the quotient will be equal. - Any number divided by 1 is equal to itself.
Instructional Video25:16
Curated Video

Addition and subtraction involving zero

Pre-K - Higher Ed
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...
Instructional Video22:17
Curated Video

Identify missing factors when one factor is 2

Pre-K - Higher Ed
Pupil outcome: I can identify missing factors when one of the factors is 2 Key learning points: - When one of the factors is 2, the other factor is half of the product. - We can use our knowledge of doubling and halving to help us find a...
Instructional Video23:36
Curated Video

Explain how doubling and halving are related

Pre-K - Higher Ed
Pupil outcome: I can explain how doubling and halving are related. Key learning points: - If double 4 is 8, then half of 8 is 4 - Halving means to partition the number into two equal groups. - Halving is the inverse of doubling. -...
Instructional Video24:24
Curated Video

Explain the relationship between adjacent multiples of 5

Pre-K - Higher Ed
Pupil outcome: I can explain the relationship between adjacent multiples of 5 Key learning points: - Adjacent multiples of 5 have a difference of 5 - If you add 5 to a multiple of 5 you get the next multiple of 5 - If you subtract 5 from...
Instructional Video20:55
Curated Video

Multiply a 3-digit by a 1-digit number with no regroups

Pre-K - Higher Ed
Pupil outcome: I can multiply a 3-digit by a 1-digit number using expanded and short multiplication (no regroups). Key learning points: - Expanded multiplication of a 3-digit by a 1-digit number will give three numbers to add to...
Instructional Video22:25
Curated Video

Add three addends by finding pairs that total 10

Pre-K - Higher Ed
Pupil outcome: I can recognise number pairs that total 10 and use them to find the sum of three numbers. Key learning points: - Rearranging the addends identifies the pairs that total 10. - Place value means we can add a single digit to...
Instructional Video22:52
Curated Video

Solve one and two-step problems in different contexts

Pre-K - Higher Ed
Pupil outcome: I can solve one and two-step problems in different contexts. Key learning points: - When a part is missing, subtract the other part from the whole. - When the whole is missing, add the parts together. - Look for the...
Instructional Video24:16
Curated Video

Explain why the product stays the same when one factor is doubled and the other is halved

Pre-K - Higher Ed
Pupil outcome: I can explain why the product stays the same when one factor is doubled and the other is halved. Key learning points: - When one factor is doubled and the other is halved, the product remains the same. - Arrays can be...
Instructional Video21:29
Curated Video

Explain the effect on the quotient when scaling the dividend and the divisor by the same amount

Pre-K - Higher Ed
Pupil outcome: I can explain the effect on the quotient when scaling the dividend and the divisor by the same amount. Key learning points: - If the dividend and divisor are both scaled by the same amount, the quotient will remain the...
Instructional Video25:20
Curated Video

Explain the effect on the product when scaling the factors up and down by the same amount

Pre-K - Higher Ed
Pupil outcome: I can scale factors up and down by the same amount and explain the effect. Key learning points: - When one factor is scaled and the other is scaled down by the same amount, the product remains the same. - Arrays can...
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 Video20:42
Curated Video

Add 3 numbers together in different contexts

Pre-K - Higher Ed
Pupil outcome: I can represent addition problems using ‘first, then, then, now’ and bar models. Key learning points: - Addition of three addends can be described with a first …, then …, then …, now structure. - A bar model can be used to...
Instructional Video24:40
Curated Video

Use representations to round a decimal number with tenths to the nearest whole number

Pre-K - Higher Ed
Pupil outcome: I can use representations to round a decimal number with tenths to the nearest whole number. Key learning points: - Identify the next and previous whole numbers to the number being rounded. - Identify which whole number is...
Instructional Video19:49
Curated Video

Calculate the difference using knowledge of an adjusted subtrahend: difference structure

Pre-K - Higher Ed
Pupil outcome: I can calculate the difference using knowledge of an adjusted subtrahend in a difference structure Key learning points: - The more you subtract the smaller the difference. - The less you subtract the greater the...
Instructional Video23:12
Curated Video

Explain how adjusting the subtrahend affects the difference: partitioning

Pre-K - Higher Ed
Pupil outcome: I can explain how increasing or decreasing the subtrahend affects the difference in a partitioning structure. Key learning points: - The more you subtract the less you are left with. - The less you subtract the more you...
Instructional Video21:41
Curated Video

Identify knowns and unknowns in subtraction equations

Pre-K - Higher Ed
Pupil outcome: I can identify knowns and unknowns in subtraction equations. Key learning points: - Equations can be represented using part-part-whole or bar models. - If the minuend is missing, you add the subtrahend and difference. - To...
Instructional Video20:30
Curated Video

Use knowledge of the relationship between the 2, 4 and 8 times tables to solve problems

Pre-K - Higher Ed
Pupil outcome: I can use the relationship between the 2, 4 and 8 times tables to solve problems. Key learning points: - If you double the multiples of 2 you get the multiples of 4 - If you double the multiples of 4 you get the multiples...
Instructional Video18:22
Curated Video

Divide a 2-digit by a 1-digit number using short division (no regrouping )

Pre-K - Higher Ed
Pupil outcome: You can divide a 2-digit by a 1-digit number using short division (no regrouping or remainders) Key learning points: - Short division helps us to organise division by partitioning. - The language of unitising helps to...
Instructional Video16:53
Curated Video

Explain how to balance an equation with two unknowns

Pre-K - Higher Ed
Pupil outcome: I can explain how to balance an equation with two unknowns. Key learning points: - The same sum rule can be used to balance equations. - The same difference rule can be used to balance equations. - Understanding of the...
Instructional Video18:53
Curated Video

Explain how you know you have found all the possible solutions to a problem with two unknowns

Pre-K - Higher Ed
Pupil outcome: I can explain how you know you have found all the possible solutions to a problem with two unknowns. Key learning points: - A trial and improvement approach can be used if a model can't easily be drawn. - A table can be...