\( \DeclareMathOperator{cosec}{cosec} \)

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Here are some specific activities, investigations or visual aids we have picked out. Click anywhere in the grey area to access the resource.

- Number Grids Investigate the properties of number with these interactive number grids.
- Factor Trees Create factor trees to find the prime factors of the given numbers.
- Factor Pairs Find the factor pairs of the given numbers and arrange them in order.
- Flabbergasted Game This game for one or two players is an exciting challenge to demonstrate an understanding of factors and multiples.
- How Many Factors? Work out the number of factors a number has then write them all as a list.
- Fizz Buzzer The digital version of the popular fizz buzz game. Press the buzzers if they are factors of the counter.
- Convoluted Find the runs of four multiples in order as quickly as you can.
- Connect 4 Factors This a game for one or two players. The winner is the first to line up four numbers with a common factor.
- HCF and LCM Video Learn different methods for finding the highest common factor and lowest common multiple of two or three numbers.
- HCF and LCM Practise finding the highest common factor (H.C.F), sometimes called the greatest common divisor, and the lowest common multiple (L.C.M) of two numbers.
- Factor Trees Challenge Can you determine the unique digits that will complete these factor trees?
- Divisibility Test Practise using the quick ways to spot whether a number is divisible by the digits two to nine.
- Divisibility Tests 2-12 A visual aid designed to be projected in the classroom. Here you can find the quick ways of telling whether a number is exactly divisible by the numbers two to twelve.
- Divisibility Tests Worksheet This worksheet contains a list of the divisibility tests along with a fill-in-the-table exercise.
- Remainder Race A game involving chance and choice requiring an ability to calculate the remainder when a two digit number is divided by a single digit number.
- Satisfy Place the nine numbers in the table so they obey the row and column headings about the properties of the numbers.
- Three Ways Find three different ways of multiplying four different digits together to get the given target number. There are nine levels for this online challenge.

Click on a topic below for suggested lesson Starters, resources and activities from Transum.

How do you teach this topic? Do you have any tips or suggestions for other teachers? It is always useful to receive feedback and helps make these free resources even more useful for Maths teachers anywhere in the world. Click here to enter your comments.