Instructional Video21:37
Curated Video

Use equivalence and compensation strategies to solve addition problems in a range of contexts

Pre-K - Higher Ed
Pupil outcome: I can use equivalence and compensation strategies to solve addition problems in a range of contexts. Key learning points: - The part-whole structure can be used to represent additive problems in a range of contexts. - A...
Instructional Video25:10
Curated Video

Review using column addition to add 2- and 3-digit numbers by regrouping tens

Pre-K - Higher Ed
Pupil outcome: I can use column addition to add numbers by regrouping tens. Key learning points: - When using column addition, start by adding the numbers with the smallest place value first. - If the sum of the tens digits is ten or...
Instructional Video25:29
Curated Video

Review adding 3-digit numbers using column addition without regrouping

Pre-K - Higher Ed
Pupil outcome: I can add 3-digit numbers using column addition. Key learning points: - The addends are written in columns with the same value digits in the same column. - The sum is recorded underneath the addends with the same value...
Instructional Video22:07
Curated Video

Explain how adjusting one part affects the sum

Pre-K - Higher Ed
Pupil outcome: I can explain how adjusting one addend or part affects the sum or whole. Key learning points: - If I increase this part or by __ then the whole will increase by the same amount. - If I decrease this part by __ then the...
Instructional Video17:39
Curated Video

Use knowledge of balancing equations to solve problems

Pre-K - Higher Ed
Pupil outcome: I can use knowledge of balancing equations to solve problems Key learning points: - Knowledge of addition and subtraction can be used to solve problems involving comparing balancing expressions. - Expressions can be formed...
Instructional Video25:02
Curated Video

Checking understanding of multiplication with fractions

Pre-K - Higher Ed
Pupil outcome: I can use the mathematical structures that underpin the multiplication of fractions. Key learning points: - An array can help expose the structure behind multiplying fractions. - The denominators give us the number of rows...
Instructional Video24:23
Curated Video

Use column subtraction to subtract from a 2- or 3-digit number

Pre-K - Higher Ed
Pupil outcome: I can use column subtraction to subtract from a 2- or 3-digit number. Key learning points: - Start by subtracting the number with the smallest place value first. - The minuend always appears first in a column subtraction....
Instructional Video22:40
Curated Video

Converting fractions with technology

Pre-K - Higher Ed
Pupil outcome: I can convert from fractions to decimals and back again using the converter key on a calculator. Key learning points: - A calculator can be used to simplify fractions. - A calculator can be used to convert fractions to...
Instructional Video19:09
Curated Video

Use place value to compose numbers up to 2,000 using hundreds, tens and ones

Pre-K - Higher Ed
Pupil outcome: I can use place value to compose numbers up to 2,000 Key learning points: - Numbers can be composed in different ways. - Each thousand is equal to 10 hundreds or 100 tens. - Numbers can be read in different ways. 1,300 is...
Instructional Video26:08
Curated Video

Expressing an integer as a product of its prime factors

Pre-K - Higher Ed
Pupil outcome: I can write any positive integer uniquely as a product of its prime factors. Key learning points: - Every composite number has prime number factors. - All the factors of a number can be broken down into prime factors. -...
Instructional Video28:48
Curated Video

Use column addition with regrouping in ones and tens

Pre-K - Higher Ed
Pupil outcome: I can use column addition with regrouping in the ones and tens. Key learning points: - When using column addition, start by adding the numbers with the smallest place value first. - Make sure that any regrouped 10s are...
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 Video34:51
Curated Video

Checking understanding of arithmetic procedures with integers and decimals

Pre-K - Higher Ed
Pupil outcome: I can add, subtract, multiply and divide with integers and decimals. Key learning points: - The decimal point determines the place value of each digit. - The decimal point can help ensure that digits with the same place...