지도서 · Topic 3 · 3 / 5

Count in 2s, 5s and 10s2씩·5씩·10씩 세기

Forwards and backwards.

Step 3워크북 8–9쪽 →
한국어 요약

양말, 손가락, 동전으로 2씩, 5씩, 10씩 묶어 세기를 가르치는 영어 대본이에요. 앞으로와 거꾸로 세기, 100칸 수 배열표에 색칠해 규칙 찾기, 집에서 바로 할 수 있는 놀이를 담았어요.

이 주제 차례 (8)

The big idea핵심

Counting in 2s, 5s and 10s is counting in groups. It is faster than counting in 1s, and it is the start of the times tables (2×, 5×, 10× tables come in Year 2). Lia should say these counts smoothly, forwards and backwards, and use them to count real things: pairs of socks (2s), fingers on hands (5s), and 10 sen coins (10s).

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counting in 5s makes two straight columns

Get ready준비물

  • Pairs of socks or shoes
  • Everyone's hands!
  • 10 sen coins
  • The 100 square and colouring pencils

Teach it, step by step단계별 수업

YOU 부모가 할 말LIA 아이가 할 만한 대답DO 손으로 할 일

Real things first

DOPut out 6 pairs of socks.
YOU“Let's count the socks in 2s: 2, 4, 6, 8, 10, 12.”
YOU“How many socks?”
LIA12.
YOU“Counting in 2s is faster than counting in 1s!”

Do the same with hands (5s: 5, 10, 15, 20…) and 10 sen coins (10s: 10, 20, 30…).

Whisper and shout

YOU“Let's count to 20. Whisper the odd numbers and shout the others.”
DOone (whisper), TWO (shout), three (whisper), FOUR (shout)…
YOU“Now say only the loud numbers.”
LIA2, 4, 6, 8, 10…
YOU“That is counting in 2s!”

Colour the pattern

YOU“Colour every number you say when you count in 5s.”
YOU“What do you notice?”
LIAThey are in two lines. They end in 5 or 0.
YOU“Now count in 10s. Where are those numbers?”
LIAIn the last line. They all end in 0.

Backwards

YOU“Count back in 10s from 100.”
LIA100, 90, 80…
YOU“Count back in 5s from 50.”
LIA50, 45, 40, 35…
YOU“Count back in 2s from 20.”

Start anywhere

YOU“Count in 10s from 30.”
YOU“Count in 2s from 14.”
YOU“Count in 5s from 35 to 70.”
광고

Other ways to say it다른 표현

  • “Count in twos.”
  • “Count in 2s.”
  • “Count in steps of 5.”
  • “Count up in tens.”
  • “Count back in fives.”
  • “What comes next in the pattern?”
  • “What is the missing number?”
  • “How many socks are there? Count in 2s.”
  • “How much money? Count in 10s.”

Good questions to ask좋은 질문

  • “Why is counting in 5s faster than counting in 1s?”

  • “What do you notice about numbers when you count in 2s?”

    Note

    They end in 0, 2, 4, 6 or 8 (even numbers).

  • “Will you say 35 if you count in 10s from 0? Why not?”

    Note

    Numbers ending in 5 are not in the 10s count from 0.

  • “How many fingers are on 4 hands?”

    Note

    Count in 5s: 20.

If Lia is stuck막힐 때

  • When

    She loses the pattern after 10 (in 2s).

    Use the 100 square. Point and jump: “Skip one, say one.”

  • When

    In 5s she says 5, 10, 15, 20, 30.

    Look at the 100 square: “5s end in 5 or 0. After 20 comes…?”

  • When

    Backwards is hard.

    Count forwards first, then backwards on the same numbers. Use coins: take one away each time.

Games (3)놀이

Game · Coin count

You need: 10 sen coins (and later 5 sen and 20 sen)

  1. Grab a handful of 10 sen coins. Lia counts them in 10s: “10, 20, 30… 70 sen!”
  2. Take one away: “How much now?” (Count back in 10s.)
Game · Hand count

You need: family hands

  1. Everyone puts up both hands. Count the fingers in 5s.
  2. Hide one hand: “How many fingers now?”
Game · Pattern hop

You need: chalk or paper numbers on the floor

  1. Write 0–30 on the floor. Lia hops in 2s, then 5s, and says each number as she lands.

Extra challenge더 도전

  • Count in 2s starting from 1: 1, 3, 5, 7… (odd numbers).
  • Count in 10s from 7: 7, 17, 27, 37… What changes and what stays the same?
  • Count in 5s to 120.
In the workbook

Socks, fingers and coins, number patterns, and colouring the 100 square.

워크북 8–9쪽 보기이 주제 인쇄

자주 묻는 질문

뛰어 세기는 영어로 뭐라고 하나요?

count in 2s, 5s and 10s처럼 count in 뒤에 묶는 수를 붙여요. 거꾸로 셀 때는 count back in 10s처럼 말해요.

광고