Let's count the whole class in fives together: 5, 10, 15, 20... Keep going until we pass thirty. Watch the numbers appear on the board as we call them out. Now look at every number we landed on. What do you notice about the last digit of each one? Do they all end in the same few numbers?
Look at the three hundred squares showing the multiples of 5, of 3, and of 6. Watch the shape each pattern makes. Keep an eye out for numbers that are shaded on more than one square.
One person comes up to shade each fact on the board. Everyone else skip-counts aloud together as they shade, 5, 10, 15 and so on, so we read the answer as a class.
Now we work through some facts together on the class hundred square: first 5 × 4, then 3 × 6, then 6 × 3, and finally 6 × 5.
For each six-fact, check together that the sixes land on multiples of three.
In your maths copy, write out the 3-times table. Then, beside each three-fact, write its double to make the matching six-fact. For example, next to 3 × 4 = 12 write 6 × 4 = 24, because 24 is 12 doubled.
Now we build up the pattern picture together. Shade the multiples of 5, then clear and shade the multiples of 3, then the multiples of 6, and finally shade the numbers that are multiples of both 3 and 6. Predict before each reveal what the shading will look like.
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