Get the students to clap as they count in ones. Flip over the numbers on the hundreds board as they are said. Practise the number sequences forwards and backwards.

Ask the students to identify individual numbers on the hundreds board from the sequence they have just counted.

Repeat with the Slavonic abacus. Repeat with flip strips.

Activity

Use body “percussion” to skip-count in twos. For example, the students touch their knees and silently think “One”, then clap and say “Two”, then touch their knees and think “Three”, then clap and say “Four” ...

Repeat skip-counting by twos by flipping over every second number on the hundreds board.

Similarly skip-count by fives and tens.

Repeat skip-counting by twos by moving pairs of beads on the Slavonic abacus. Relate the counting sequence to sets of objects and ask the students to give the total number of beads.

Similarly skip-count by fives and tens.

Extension Activity

Repeat the activity above with skip-counting by threes and fours.

Ask the students to predict whether a given number will be in the pattern of multiples as shown on the hundreds board. For example, “Will 335 be in our fives pattern? Why do you think so?”, or “What is the twentieth number in our tens pattern?”