Instantly recognise patterns to 5, including finger patterns.
Instantly recognise patterns to 10, including finger and tens frame patterns.
Recall groupings of twos, threes, fives, and tens that are in numbers to 100 and the resulting remainders.
Number Framework Stages 1, 2 and 6.
Practise making finger patterns for the numbers 1 to 10. The focus is on grouping not counting.
Begin with finger patterns the students will know, like one, two, five, and 10. Find other patterns from these numbers. For example: “Show me five fingers ... Now, show me six. What did you do to make six (add a finger)? What would seven look like? What about four?”
“Show me 10 fingers ... How do you know it is 10?” (five and five) “Change it into nine.” “How did you do that?” (took off a finger) “What would five look like?”
Repeat this activity with the students hiding their fingers behind their backs and imagining the finger patterns.
Activity – Fly Flip Cards
Show the students a fly flip card with the five flies and a number on the front, for example, “8”.
Ask how many flies there will be on the back. Ask the students to show eight on their fingers.
(They need to have five fingers showing on one hand.) Ask how many fingers they need to show on their other hand to make eight (three). Turn the card over to reveal the other three flies that make eight.
Repeat for the fly flip cards from six to 10.
Activity
Show an eight-fly card. Ask, “How many more flies would make this a 10-fly card?” (two). Repeat for the fly flip cards from 6 to 10.
Activity – Slavonic Abacus
Push over a small number of beads, for example, six. Ask “How many beads did I just push over?” and “How did you know it was six without counting the beads?” Aim for responses like “I know that one more than five is six.” Get the students to show you six fingers to reinforce the connection. Try this for other “five and ...” groupings. For example, “Eight is five and what?”
Alternatively, start by pushing across five beads and ask “How many more to make eight?”
Follow up by asking “How did you know?” Ask the students to show you the same fact with their fingers.
Push across a small number of beads and ask how many more are needed to make 10. This is reinforcing the key knowledge of pairs of numbers that add up to 10. Connect this with the finger patterns and matching fly flip card.
Activity – Murtles 5
Murtles 5 and ... (Material Master 5–9) is an excellent game for students to practise groupings with five.