Count the seats around the tables on screen. One square table seats four people. Push two square tables together and more people can sit. Push three together for a longer table.

How many seats do you think each new table adds when we join one more? Hands up with your guess.

Here are three growing patterns on the number line. Look at where the markers sit, and be ready to say the jump between each pair.

For the first two, what is the same jump happening every time — and where would the very next marker go? The last one is different: its jump does not stay the same size. To double means to make something twice as big, so 1 doubles to 2, 2 doubles to 4, 4 doubles to 8. Watch how those jumps get bigger and bigger.

We record each stage as a marker on the line, then predict the next one. Work in order:

• Grow by 2: 2, 4, 6, predict the next
• Grow by 5: 5, 10, 15, predict the next
• 1, 4, 7, predict the next

• Chairs around 1, 2, 3 tables: 4, 6, 8 — place the next
• Dots in a growing L: 2, 4, 6 — place the next
• Matchstick squares: 4, 7, 10 — place the next
• Double each time: 1, 2, 4, 8 — place the next. This one's jump is not the same each time; remember it doubles, so watch it grow.

Which one grows the fastest? Say your prediction before each check.