Say the forwards and backwards number word sequences in the range 0–10.
Say the forwards and backwards number word sequences in the range 0–20.
Say the forwards and backwards number word sequences in the range 0–100.
Say the forwards and backwards skip–counting sequences in the range 0–100 for twos, fives, and tens.
Say the forwards and backwards whole number word sequences by ones, tens, hundreds, and thousands in the range 0–1 000 000, including finding numbers that are 10, 100, and 1 000 more or less than a given number.
Number Framework Stages 1-6
Slavonic abacus
Flip strip (Material Master 4-2)
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?”