Instructional Video23:08
Curated Video

Find missing numbers between 20 and 100

Pre-K - Higher Ed
Pupil outcome: I can use a range of strategies to help find missing numbers on a number track. Key learning points: - You can find missing numbers on number tracks in different ways. - You can count forwards or backwards to find a...
Instructional Video2:04
Curated Video

Missing Numbers in Fraction Addition: Solving for the Unknown

3rd - 5th
This video shows the process for solving the problem presented in SATs 2022 Paper 3 Q13, which involves finding mission fractions. Students will use the concept of equivalent fractions to determine the missing fraction in an addition...
Instructional Video6:32
Curated Video

Strategies for Finding Missing Numbers in Addition and Subtraction

K - Higher Ed
In this lesson, students are introduced to another strategy for problem solving: number bonds. Number bonds are useful when finding the unknown number in a problem, such as 8 + ? = 11. They can be used for addition and subtraction,...
Instructional Video3:35
Curated Video

Finding Missing Parts in Part-Whole Models

K - 12th
This video teaches learners how to find a missing part in a number sentence, using a part-whole model.
Instructional Video28:09
Curated Video

Solve equations involving the subtraction of two-digit numbers

Pre-K - Higher Ed
Pupil outcome: I can solve equations involving the subtraction of two-digit numbers. Key learning points: - The known part can be partitioned into tens and ones before subtracting to help subtract two-digit numbers. - Known facts and the...
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 Video33:11
Curated Video

Add and subtract one to or from a two-digit number within a decade

Pre-K - Higher Ed
Pupil outcome: I can add and subtract 1 to and from a 2-digit number within a decade. Key learning points: - Finding one more is the same as adding 1. Finding one less is the same as subtracting 1 - Numbers that are one more or one less...
Instructional Video33:50
Curated Video

Solve problems finding a missing part when one part and the whole is known

Pre-K - Higher Ed
Pupil outcome: I can solve problems finding the missing part when the other part and the whole is known. Key learning points: - Each of the numbers one to five can be partitioned into two parts. - Use the sentence, the whole is ___ and...
Instructional Video4:38
Curated Video

Missing Addend Word Problems

K - 8th
“Missing Addend Word Problems” explains how mathematical symbols represent specific words and demonstrates how to write equations for sample word problems.
Instructional Video23:47
Curated Video

Multiply hundredths by whole numbers

Pre-K - Higher Ed
Pupil outcome: I can use known multiplication facts and unitising to multiply hundredths by whole numbers. Key learning points: - There are one hundred hundredths in one whole. - There are ten hundredths in one tenth. - Unitising can...
Instructional Video26:23
Curated Video

Review adding 2-digit numbers using column addition without regrouping

Pre-K - Higher Ed
Pupil outcome: I can add 2-digit numbers using column addition. Key learning points: - The addends are written in columns with the same value digits in the same column. - Start by adding the numbers with the smallest place value first. -...
Instructional Video24:10
Curated Video

Partition the numbers 8 and 9 in different ways

Pre-K - Higher Ed
Pupil outcome: I can partition the numbers 8 and 9 in different ways and organise them in a systematic way. Key learning points: - Partitioning can be represented on a part-part-whole diagram. - A bar model can be used to represent ways...
Instructional Video25:21
Curated Video

Multiply tenths by whole numbers

Pre-K - Higher Ed
Pupil outcome: I can use known multiplication facts and unitising to multiply tenths by whole numbers. Key learning points: - There are 10 tenths in one whole. - Unitising can help to multiply tenths by whole numbers. - Multiplication of...
Instructional Video28:06
Curated Video

Order and compare decade numbers on number tracks

Pre-K - Higher Ed
Pupil outcome: I can order the decade numbers 0-100 on a number track and say which number is greater than or less than another. Key learning points: - Decade numbers can be ordered on a number track by counting in tens or by looking at...
Instructional Video24:20
Curated Video

Explain that the digits in the numbers 11 to 19 express position on a number line

Pre-K - Higher Ed
Pupil outcome: I can explain that the digits in the numbers 11 to 19 express position on a number line. Key learning points: - The numbers 11 - 19 can be positioned on a number line. - Saying the teen numbers as one ten and __ ones helps...
Instructional Video31:46
Curated Video

Use number bonds to 10 to add/subtract one-digit and two-digit numbers

Pre-K - Higher Ed
Pupil outcome: I can use number bonds to add and subtract one-digit and two-digit numbers. Key learning points: - When the ones digits in an equation sum to ten, the sum in the equation will always be a multiple of ten. - When...
Instructional Video28:14
Curated Video

Add and subtract 1 to and from a 2-digit number crossing the tens boundary

Pre-K - Higher Ed
Pupil outcome: I can add and subtract one to and from a two-digit number crossing the tens boundary. Key learning points: - Finding one more is the same as adding one; finding one less is the same as subtracting one. - Numbers that are...
Instructional Video26:09
Curated Video

Add and subtract 10 to and from a 2-digit number.

Pre-K - Higher Ed
Pupil outcome: I can add and subtract 10 to and from a two-digit number. Key learning points: - When adding or subtracting 10, the ones digits does not change. - When adding 10, the tens digit increases by one; when subtracting 10, the...
Instructional Video20:27
Curated Video

Add two numbers that bridge through 10

Pre-K - Higher Ed
Pupil outcome: I can add two numbers that bridge through 10 Key learning points: - Partition one of the addends to make a pair that total 10 with the other addend. - Use known facts to partition an addend.
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...
Instructional Video29:52
Curated Video

Find the missing addend when adding two-digit numbers

Pre-K - Higher Ed
Pupil outcome: I can find the missing addends when adding two-digit numbers. Key learning points: - Two-digit numbers can be partitioned to help find a missing digit or a missing addend. - One equation can be used to help solve another...
Instructional Video23:18
Curated Video

Partition two-digit numbers into tens and ones using place value resources

Pre-K - Higher Ed
Pupil outcome: I can partition two-digit numbers into tens and ones using place value resources and represent this on part-part-whole models and bar models. Key learning points: - Two-digit numbers can be partitioned into tens and ones....
Instructional Video25:51
Curated Video

Estimate the position of multiples of ten on a 0 - 100 number line

Pre-K - Higher Ed
Pupil outcome: I can estimate the position of multiples of ten on a 0 - 100 number line. Key learning points: - There are ten jumps of ten on a line from 0 to 100 - The multiples of ten are equally spaced. - Knowledge of counting to ten...
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...