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Hands-on activities for the Prime Colours cards. Pick a topic, or start at the beginning.

Ten Frames Coming soon Times tables practice 3 activities Factors Find the factors, then count them LCM and HCF Shortest path: HCF and LCM Ratio and proportion Coming soon Fractions Coming soon Area and perimeter Coming soon Factorisation Coming soon Indices and surds Coming soon Mental models and manipulatives Building with colours Installing the model Flash card practice: guess, test, self-assess Multiplication as action One disk change, one card change Additive vs multiplicative Coming soon

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Mental models and manipulatives · Game Building with colours The missing manipulative: build numbers from their prime factors, right in your browser. Factors · Instructions Find the factors, then count them Make every factor of a number from its own disks, in order, then look for factor patterns. Installing the model · Game Flash card practice: guess, test, self-assess Install the model a few minutes a day: read the colours, say the number, keep the ones you know. Times tables practice · Game Multiples hunt Times tables, the Prime Colours way: Choose your times table. take turns to hunt down every multiple of 6. Times tables practice · Game Multiplication triplets Explore the pack: find two cards that multiply to make a third, then turn them over to see the colours. How many triplets can you make? Multiplication as action · Game One disk change, one card change Multiplication and division as actions: change one disk at a time and build a chain of cards. LCM and HCF · Instructions Shortest path: HCF and LCM Get from one card to another one disk at a time. Two of the shortest paths pass through the HCF and the LCM. Times tables practice · Game Spot It Pick a Card from the deck and place it in the centre, colour side up. Which numbers would you use to build it? Can you work out hat number it is

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