Curated Video
Calculate the difference when information is presented in a pictogram
Pupil outcome: I can calculate the difference when information is presented in a pictogram. Key learning points: - A pictogram is a graph that uses pictures to represent information. - A pictogram’s key tells us what each picture...
Curated Video
Identify knowns and unknowns in addition equations
Pupil outcome: I can identify knowns and unknowns in addition equations. Key learning points: - If the sum is missing, you add the addends. - If an addend is missing, subtract the other addend from the sum to calculate the missing value....
Curated Video
Explain how increasing or decreasing the minuend affects the difference
Pupil outcome: I can explain how increasing or decreasing the minuend affects the difference. Key learning points: - If I increase the minuend, the difference increases by the same amount. - If I decrease the minuend, the difference...
Curated Video
Use equivalence and compensation strategies to solve subtraction problems in a range of contexts
Pupil outcome: I can use equivalence and compensation strategies to solve subtraction problems in a range of contexts. Key learning points: - Compensation can be used to solve subtraction calculations. - Equivalence can be used to solve...
Curated Video
Explain and represent constant difference for subtraction
Pupil outcome: I can explain and represent constant difference for subtraction. Key learning points: - If the minuend and subtrahend are both increased by the same amount, the difference stays the same. - If the minuend and subtrahend...
Curated Video
Use constant difference to balance equations and find unknowns
Pupil outcome: I can use the same difference rule to balance equations. Key learning points: - If I add __ to the minuend and add the same number to the subtrahend, the difference stays the same. - If I subtract __ from the minuend and...
Curated Video
Identify the minuend and subtrahend in column subtraction
Pupil outcome: I can identify the minuend and subtrahend in column subtraction. Key learning points: - The minuend is written first in a column subtraction. - The subtrahend is written beneath the minuend. - The difference is recorded...
Curated Video
Explain the difference between consecutive even numbers
Pupil outcome: I can explain the difference between consecutive even numbers. Key learning points: - Consecutive even numbers have a difference of 2 - We can use our knowledge to solve missing number problems when 2 is the known part.
Curated Video
Explain the difference between consecutive odd numbers
Pupil outcome: I can explain the difference between consecutive odd numbers. Key learning points: - Consecutive odd numbers have a difference of 2 - We can use this knowledge to solve missing number problems when 2 is the known part.
Curated Video
Use number pairs to 10 in subtraction contexts
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...
Curated Video
Measure length and height from zero using whole m or cm
Pupil outcome: I can measure length and height from zero using whole metres and centimetres. Key learning points: - When measuring, it is more efficient to start at zero. - The length of the object is the difference between the numbers...
Curated Video
Use and explain the most efficient strategies when subtracting quantities of money
Pupil outcome: I can use and explain the most efficient strategies when subtracting quantities of money. Key learning points: - Informal calculation strategies such as rounding and compensating can be applied to calculating with money. -...
Curated Video
Explore mental and written strategies to solve problems
Pupil outcome: I can explore written and mental strategies to solve problems. Key learning points: - Looking at the numbers involved and using number-sense supports us to know which strategy is more efficient. - A number line is a useful...
Curated Video
Calculate the difference using knowledge of an adjusted subtrahend: difference structure
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...
Curated Video
Explain how adjusting the subtrahend affects the difference: reduction structure
Pupil outcome: I can explain how adjusting the subtrahend affects the difference in a reduction structure. Key learning points: - The more you subtract the less you are left with. - The less you subtract the more you are left with. - A...
Curated Video
Explain how adjusting the subtrahend affects the difference: partitioning
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...
Curated Video
Review identifying the minuend and subtrahend in column subtraction
Pupil outcome: I can identify the minuend and subtrahend in column subtraction. Key learning points: - The minuend and subtrahend are written in columns with the same value digits in the same column. - The subtrahend is written beneath...
Curated Video
Identify knowns and unknowns in subtraction equations
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...
Curated Video
Subtract a pair of 2-digit numbers by finding the difference
Pupil outcome: I can subtract a pair of 2-digit numbers by finding the difference. Key learning points: - When the minuend and subtrahend are close in value, finding the difference can be an efficient strategy for subtraction - Finding...
Curated Video
Compare the structure of problems with one or two unknowns
Pupil outcome: I can compare the structure of problems with one or two unknowns. Key learning points: - Unknowns can be connected additively. - Unknowns can be connected multiplicatively. - Representations can show if unknowns are...
Curated Video
Explain how to balance an equation with two unknowns
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...
Curated Video
Subtract 2 or 3-digit numbers using partitioning and bridging a multiple of 10
Pupil outcome: I can subtract 2 or 3-digit numbers using partitioning and bridging a multiple of 10 Key learning points: - By looking at the minuend and subtrahend we know if we will have to bridge 10 or 100 - If the ones digit of the...
Curated Video
Measuring length and height using cm and mm
Pupil outcome: I can measure length and height using mm or whole cm and mm. Key learning points: - The length or height of objects can be measured in mm or in whole cm and mm. - It is more efficient to start at zero when measuring. - If...
Curated Video
Use the additive relationship to rearrange subtraction equations
Pupil outcome: I can rearrange subtraction equations. Key learning points: - Equations can be represented using part-part-whole or bar models. - The subtrahend and difference are parts and the minuend is the whole. - Subtraction...