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Counting · Number words · Facts within 20 · goes with “Lia's Maths Book – Year 1 Review”

This guide helps Lia practise the Year 1 number work at home. It explains each part in easy English, with things to say, questions to ask, and games to play.

The most important word in this guide is again. Counting and number facts become easy only with short, happy practice, many times.

Made by Lia's dad with the help of AI. It follows the Year 1 Number programme in the National Curriculum for England (place value, and addition and subtraction), which Lia's school follows. It is home practice, not official school material.

What Year 2 expects from Year 1

Five things from Year 1. This guide has one topic for each.

Year 1 goal (National Curriculum)	What it means	Topic
count forwards and backwards to and across 100	Say numbers in order, up and down, from any number, and past 100 (… 99, 100, 101 …).	1
read and write numbers to 100 in numerals	Read 47 and write 47 when someone says “forty-seven”. Know tens and ones.	2
count in 2s, 5s and 10s	2, 4, 6, 8 … / 5, 10, 15 … / 10, 20, 30 … and back again.	3
write numbers 1 to 20 in words	Read and spell one, two, three … twenty.	4
addition and subtraction facts within 20	Know facts like 8 + 7 = 15 and 15 − 7 = 8 quickly.	5

count forwards and backwards to and across 100What it meansSay numbers in order, up and down, from any number, and past 100 (… 99, 100, 101 …).Topic1
read and write numbers to 100 in numeralsWhat it meansRead 47 and write 47 when someone says “forty-seven”. Know tens and ones.Topic2
count in 2s, 5s and 10sWhat it means2, 4, 6, 8 … / 5, 10, 15 … / 10, 20, 30 … and back again.Topic3
write numbers 1 to 20 in wordsWhat it meansRead and spell one, two, three … twenty.Topic4
addition and subtraction facts within 20What it meansKnow facts like 8 + 7 = 15 and 15 − 7 = 8 quickly.Topic5

Year 1 goals: from the National Curriculum in England, mathematics programmes of study (Year 1). Contains public sector information licensed under the Open Government Licence v3.0.

Why is this important?

In Year 2, every lesson uses these skills. For example, adding 38 + 5 needs counting across 40, and bonds to 10. If these skills are quick and easy, Lia can think about the new idea, not the counting.

Lia probably knows the maths. Now she needs it in English.

Children in Korea learn numbers to 100 and adding within 20 in Grade 1. So the maths is probably not new for Lia. What may be new is doing it in English: counting out loud quickly in English, reading and spelling English number words, and understanding English questions.

So in this guide, speaking and listening are as important as writing. Count out loud together every day.

The repeat plan (15 minutes a day)

Minutes	What to do	Where
3	Count out loud. One kind each day: forwards across 100, backwards, 2s, 5s, 10s.	Topic 1 and 3 games, or the Counting machine on the web page
8	One Daily Practice page. Lia works. You sit with her and ask questions.	Workbook: Daily Practice 1–10
2	Check together. Count the score. Colour the stars on the tracker.	Answers: at the back of the workbook. Tracker: How to use this book
2	One quick game from this guide or the web page.	“Games” in each topic

3What to doCount out loud. One kind each day: forwards across 100, backwards, 2s, 5s, 10s.WhereTopic 1 and 3 games, or the Counting machine on the web page
8What to doOne Daily Practice page. Lia works. You sit with her and ask questions.WhereWorkbook: Daily Practice 1–10
2What to doCheck together. Count the score. Colour the stars on the tracker.WhereAnswers: at the back of the workbook. Tracker: How to use this book
2What to doOne quick game from this guide or the web page.Where“Games” in each topic

Daily Practice 1 (workbook) →

The tracker: How to use this book (workbook) →

The Counting machine and games: Number Games →

Order	Plan
First	Learn Topics 1–3 with the workbook. Start Daily Practice 1–3.
Next	Learn Topics 4–5. Daily Practice 4–8.
Then	Daily Practice 9–10. Then start again from Daily Practice 1 (print new copies).
After that	Daily Practice again. Try to beat the first score. Use the web page games for extra practice.

FirstPlanLearn Topics 1–3 with the workbook. Start Daily Practice 1–3.
NextPlanLearn Topics 4–5. Daily Practice 4–8.
ThenPlanDaily Practice 9–10. Then start again from Daily Practice 1 (print new copies).
After thatPlanDaily Practice again. Try to beat the first score. Use the web page games for extra practice.

How to know Lia is ready:

she can count across 100 both ways without stopping, and she scores 34 or more out of 37 on two Daily Practice pages in a row. Then practise 2–3 times a week to keep it fresh.

Teaching Guide · Numbers to 100 and facts within 20 · liabooks.com/study

Topic 1 · Step 1 · Workbook pages 5–6

Count forwards and backwards앞으로·뒤로 세기

To and across 100, from any number. One more and one less.

한국어 요약

100을 넘어 앞으로, 거꾸로 세기와 1 큰 수·1 작은 수를 영어로 연습하는 대본이에요. 29에서 30처럼 십이 바뀌는 곳, 영국식 one hundred and one 읽기, 막힐 때 할 말과 종이 없이 하는 놀이를 담았어요.

The big idea핵심

Lia should count in English smoothly, starting from any number, going up or down, and going past 100. The hard places are where the tens change: 29 → 30, 70 → 69, 99 → 100 → 101. After 100, British English says “one hundred and one”.

the tens change at 70

across 100

Get ready준비물

Nothing! Counting is best done out loud.
The 100 square (workbook: My 100 Square) on the wall.
Optional: the Counting machine on the web page. It says each number in English.

My 100 Square (workbook)

태블릿으로 연습The Counting machine: Number Games

Teach it, step by step단계별 수업

YOU 부모가 할 말LIA 아이가 할 만한 대답DO 손으로 할 일

Count together, then take turns

YOU“Let's count together from 45 to 55. Ready? Forty-five, forty-six…”

YOU“Now let's take turns. I say one number, you say the next. Fifty-eight.”

LIAFifty-nine.

YOU“Sixty.”

LIASixty-one.

The tricky tens

YOU“What comes after 39?”

LIAForty.

YOU“Yes. After a number that ends in 9, the tens change. What comes after 59? After 89?”

YOU“Now backwards. What comes before 70?”

LIASixty-nine.

Backwards is harder than forwards. Practise going back across a ten: 72, 71, 70, 69, 68.

Across 100

DOPoint to 97 on the 100 square.

YOU“Let's count: ninety-seven, ninety-eight, ninety-nine, one hundred…”

YOU“What comes after 100?”

LIAOne hundred and one.

YOU“Great! Let's count to 110. Then back to 95.”

Start anywhere

YOU“Start at 36. Count forwards. Stop at 44.”

YOU“Start at 83. Count backwards. Stop at 76.”

YOU“Can you start at 112 and count back to 98?”

One more, one less

YOU“What is one more than 49?”

LIA50.

YOU“What is one less than 80?”

LIA79.

YOU“Is one more the number after, or the number before?”

LIAAfter!

Other ways to say it다른 표현

“What comes next?”
“What comes after 39?”
“What number is before 60?”
“What is one more than 99?”
“What is one less than 100?”
“Count on from 57.”
“Count back from 83.”
“Count up to 110.”
“Count down to 90.”
“What number is between 69 and 71?”
“Keep going!”

Good questions to ask좋은 질문

“What comes after 99? And after that?”
Note
100, then 101.
“Which is harder, forwards or backwards? Why?”
Note
Talking about learning helps.
“What happens to the tens digit after 39?”
Note
It changes from 3 to 4.
“Is one more than 69 seventy or sixty-ten?”
Note
A fun check of a common mistake.

If Lia is stuck막힐 때

When
She says “twenty-ten” after 29.
Stop at 29. Show the 100 square: “After 29 we go to the next row. The next row starts with 30, thirty.”
When
Backwards, she says 60, 69 or 60, 50.
Count forwards first (58, 59, 60), then backwards on the same numbers (60, 59, 58). Use the 100 square.
When
She says “one hundred one”.
That is American English. At a British school we say “one hundred and one”. Both are understood.
When
She mixes up thirteen and thirty.
Say them slowly with the stress: thir-TEEN, THIR-ty. See Topic 4.

Games (3)놀이

Game · Stop and go

You need: nothing

You count out loud: “forty-one, forty-two, forty-three…” Then stop suddenly.
Lia says the next three numbers.
Swap. Sometimes stop just before a new ten (…68, 69) or just before 100.

Game · Spot Dad's mistake

You need: nothing

You count, but make one mistake: “eighty-seven, eighty-eight, eighty-ten…”
Lia shouts “Stop!” and says the right number.
Children love catching adults. This is great for listening in English.

Game · Count and move

You need: space to move

Count forwards and jump on every number. Count backwards and walk backwards.
Or clap on every number that ends in 0 (30, 40, 50…).

Extra challenge더 도전

Count backwards from 120 to 90.
Count on in 1s from any 3-digit number to 120, like 109 to 120.
One more and one less than 100: 101 and 99. Then 10 more and 10 less than 100: 110 and 90.

In the workbook

Number tracks, one more and one less, before and after.

Teaching Guide · Numbers to 100 and facts within 20 · liabooks.com/study

Topic 2 · Step 2 · Workbook pages 7

Numbers to 100100까지의 수

Read and write numerals. Tens and ones.

한국어 요약

100까지의 수를 영어로 읽고, 불러 주는 수를 숫자로 받아쓰는 연습이에요. 블록으로 십과 일을 나누어 보고, forty-seven을 407로 쓰는 것처럼 자주 하는 실수에서 무슨 말을 해 줄지 정리했어요.

The big idea핵심

A 2-digit number has tens and ones. In 46, the 4 means 4 tens (40) and the 6 means 6 ones. Lia should read numbers out loud in English (46 → “forty-six”) and write numbers that she hears (“forty-six” → 46). A numeral is a number written in digits, like 46.

4 tens and 6 ones = 46

Get ready준비물

Lego towers of 10 and single bricks, or 10 sen coins and small items
Paper and pencil for number dictation
The 100 square

Teach it, step by step단계별 수업

YOU 부모가 할 말LIA 아이가 할 만한 대답DO 손으로 할 일

Build and say

DOBuild 4 towers of 10 and 6 single bricks.

YOU“How many tens? How many ones?”

LIA4 tens and 6 ones.

YOU“4 tens is forty. 6 ones is six. So the number is forty-six.”

YOU“Can you write it?”

Number dictation (very important!)

YOU“I will say a number. You write it. Ready? Seventy-three.”

DOLia writes 73.

YOU“Good! Now: fourteen. Now: forty.”

This is the best practice for listening. Include teen and ty numbers (14 and 40, 16 and 60) and numbers like 70 and 17.

Read my number

DOWrite 58 on paper.

YOU“Can you read this number?”

LIAFifty-eight.

YOU“How many tens? How many ones?”

The 100 square

YOU“Put your finger on 34. What is under it?”

LIA44.

YOU“Going down is 10 more. What is above it?”

LIA24. Going up is 10 less.

Other ways to say it다른 표현

“How many tens? How many ones?”
“What number is this?”
“Write the number I say.”
“Read this number out loud.”
“What is the tens digit?”
“What is the ones digit?”
“Which is bigger, 45 or 54?”
“Put these numbers in order.”
“Show me 62 with the Lego.”

Good questions to ask좋은 질문

“What does the 4 in 46 mean?”
Note
4 tens, forty. Not just four.
“Are 45 and 54 the same? Why not?”
Note
Different tens and ones.
“Which is more, 38 or 83? How do you know?”
Note
Compare the tens first.
“How do you write seventy? Why is there a 0?”
Note
7 tens and 0 ones.

If Lia is stuck막힐 때

When
She writes 407 for “forty-seven”.
Build it: 4 tens and 7 ones. “Forty is 4 tens. We write the 4 in the tens place, then the 7.”
When
She writes 74 for “forty-seven”.
Say it slowly: “FOR-ty… se-ven. Which do you hear first? The tens.”
When
She writes 16 when you say 60.
This is a listening problem. Practise pairs: 16/60, 17/70, 18/80. See Topic 4.
When
She reads 29 as “two nine”.
“Say the tens name: twenty. Then the ones: nine. Twenty-nine.”

Games (2)놀이

Game · Guess my number

You need: the 100 square

Think of a number between 1 and 100. Lia asks questions: “Is it more than 50?” “Is it less than 70?”
You answer only “yes” or “no”.
She finds the number in the fewest questions. Swap roles.
This practises the words more than and less than, too.

Game · Hidden numbers

You need: the 100 square and small sticky notes or coins

Lia closes her eyes. You cover 5 numbers.
She opens her eyes and says the hidden numbers: “This one is 57, because it is after 56.”

Extra challenge더 도전

Make the biggest and smallest number with two digit cards (for example 3 and 8 → 83 and 38).
What is 10 more than 67? 10 less than 67?
Numbers after 100: build 105 (1 hundred, 0 tens, 5 ones).

In the workbook

Base 10 pictures, tens and ones, 100 square pieces, and ordering numbers.

Teaching Guide · Numbers to 100 and facts within 20 · liabooks.com/study

Topic 3 · Step 3 · Workbook pages 8–9

Count in 2s, 5s and 10s2씩·5씩·10씩 세기

Forwards and backwards.

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.

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).

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.”

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)

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

Game · Hand count

You need: family hands

Everyone puts up both hands. Count the fingers in 5s.
Hide one hand: “How many fingers now?”

Game · Pattern hop

You need: chalk or paper numbers on the floor

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.

Teaching Guide · Numbers to 100 and facts within 20 · liabooks.com/study

Topic 4 · Step 4 · Workbook pages 10–11

Number words 1 to 201부터 20까지 영어 숫자 낱말

Read them, say them, spell them.

한국어 요약

one부터 twenty까지 영어 수 낱말을 읽고 쓰는 법이에요. 규칙을 따르는 낱말과 예외(eleven, twelve, fifteen, forty), -teen과 -ty 발음 구별, 영국 학교식 철자 연습 look, say, cover, write, check를 담았어요.

The big idea핵심

Lia should read and write the words zero to twenty, and later the tens (thirty, forty…). Most words follow a pattern, but some do not. The best way to learn spelling is a little every day, with the look, say, cover, write, check method that British schools use.

The patterns

Group	Words	Tip
1 to 10	one, two, three, four, five, six, seven, eight, nine, ten	Learn by heart. Tricky: two (silent w), eight (eigh).
Special	eleven, twelve	No pattern. Just learn them.
Easy teens	fourteen, sixteen, seventeen, nineteen	Number word + teen.
Tricky teens	thirteen (not threeteen), fifteen (not fiveteen), eighteen (only one t)	The start changes.
Tens	twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety	forty has no u! (four, fourteen, but forty)

1 to 10Wordsone, two, three, four, five, six, seven, eight, nine, tenTipLearn by heart. Tricky: two (silent w), eight (eigh).
SpecialWordseleven, twelveTipNo pattern. Just learn them.
Easy teensWordsfourteen, sixteen, seventeen, nineteenTipNumber word + teen.
Tricky teensWordsthirteen (not threeteen), fifteen (not fiveteen), eighteen (only one t)TipThe start changes.
TensWordstwenty, thirty, forty, fifty, sixty, seventy, eighty, ninetyTipforty has no u! (four, fourteen, but forty)

Say them clearly: -teen or -ty?

Teen	Ty	How it sounds
13 thirTEEN	30 THIRty	Teen: loud at the end, long “eeen”.
14 fourTEEN	40 FORty	Ty: loud at the start, short “tee”.
15 fifTEEN	50 FIFty
16 sixTEEN	60 SIXty
17 sevenTEEN	70 SEVenty
18 eighTEEN	80 EIGHty
19 nineTEEN	90 NINEty

13 thirTEENTy30 THIRtyHow it soundsTeen: loud at the end, long “eeen”.
14 fourTEENTy40 FORtyHow it soundsTy: loud at the start, short “tee”.
15 fifTEENTy50 FIFtyHow it sounds
16 sixTEENTy60 SIXtyHow it sounds
17 sevenTEENTy70 SEVentyHow it sounds
18 eighTEENTy80 EIGHtyHow it sounds
19 nineTEENTy90 NINEtyHow it sounds

The “Number words” tab on the web page reads every word aloud. Let Lia tap and repeat.

태블릿으로 연습Number words: Number Games

Teach it, step by step단계별 수업

YOU 부모가 할 말LIA 아이가 할 만한 대답DO 손으로 할 일

Read the word chart (workbook: My Number Words)

YOU“Let's read the number words. I point, you read.”

YOU“Which words look like their number? Six, sixteen…”

YOU“Which words are strange?”

LIAEleven, twelve!

Look, say, cover, write, check

YOU“Look at the word: fifteen.”

YOU“Say it: fif-teen.”

YOU“Cover it with your hand.”

YOU“Write it from memory.”

YOU“Check. Is it the same? Well done!”

Do 3 words a day. Choose the words she got wrong on the Daily Practice.

Match and say

DOWrite 5 numerals and 5 words on small cards. Mix them.

YOU“Can you find the pairs? Read each pair out loud.”

My Number Words (workbook)

Other ways to say it다른 표현

“Write the number in words.”
“Spell fifteen.”
“How do you spell twelve?”
“Read this word.”
“What number is this word?”
“Write it as a numeral.”
“Is this spelled right?”
“Which letter is missing? f_fteen”
“Say it, then write it.”

Good questions to ask좋은 질문

“Why is fifteen not spelled fiveteen?”
Good answers
“It is a tricky one. The start changes to fif.”
“What is the same about sixteen, seventeen and nineteen?”
Note
They are the number + teen.
“How are fourteen and forty different?”
Note
Spelling (four/for) and sound (TEEN at the end / FOR at the start).
“Can you find a number word in this book?”
Note
Reading practice in real life.

If Lia is stuck막힐 때

When
She writes fiveteen, threeteen.
Write the right word next to it. Look, say, cover, write, check. Praise the good try: “You found the pattern! These two break the rule.”
When
She writes fourty.
“Four and fourteen have a u. Forty doesn't. It's a rule-breaker.”
When
She mixes up 13 and 30 when listening.
Play the listen game on the web page, or say pairs and she points to the right card.

태블릿으로 연습The listen game: Number Games

Games (2)놀이

Game · Number word bingo

You need: paper with a 3 × 3 grid

Lia writes 9 numbers from 1 to 20 in her grid, as numerals.
You call out words: “fourteen!” She crosses it out if she has it.
Next time, she writes words in the grid and you call numerals.

Game · Missing letters

You need: paper

Write a word with missing letters: tw_lv_, e_gh_een.
Lia fills them in and reads the word.

Extra challenge더 도전

Write the tens in words: thirty, forty … one hundred.
Write 2-digit numbers in words: 47 = forty-seven (with a hyphen). This is Year 2 work.
Write a number sentence in words: seven plus eight equals fifteen.

In the workbook

Matching, writing words, reading words, and tricky spellings.

Teaching Guide · Numbers to 100 and facts within 20 · liabooks.com/study

Topic 5 · Step 5 · Workbook pages 12–13

Add and subtract within 2020 이내 덧셈과 뺄셈

Facts she can use quickly.

한국어 요약

20 이내 덧셈과 뺄셈을 손가락으로 세지 않고 빨리 떠올리게 돕는 영어 대본이에요. 같은 수 두 번 더하기(doubles), 10과 20 만들기, 식 하나에서 네 식 찾기, 등호(=)의 뜻을 질문과 놀이로 연습해요.

The big idea핵심

Lia should know adding and subtracting facts within 20 quickly, and use clever ways, not only counting. Three ideas help a lot: doubles (7 + 7 = 14), bonds to 10 and 20 (13 + 7 = 20), and facts that go together (if 8 + 7 = 15, then 15 − 7 = 8). The = sign means “is the same as”, so 14 = 7 + 7 is correct too.

13 + 7 = 20: fill the second ten

double 7 = 14

Get ready준비물

Two ten frames and 20 counters
Two dice
Playing cards (Ace to 10)

Teach it, step by step단계별 수업

YOU 부모가 할 말LIA 아이가 할 만한 대답DO 손으로 할 일

Doubles

YOU“Show me 5 fingers on each hand. 5 + 5?”

LIA10.

YOU“That's a double. Double 6? Double 7? Double 8?”

LIA12, 14, 16.

Doubles to 10 + 10 should become instant. They help with near doubles: 7 + 8 = 7 + 7 + 1 = 15.

Bonds to 20

YOU“We know 3 + 7 = 10. So what is 13 + 7?”

LIA20.

YOU“How do you know?”

LIA13 is 10 and 3. 3 and 7 make 10. 10 and 10 make 20.

Facts that go together

YOU“If 8 + 7 = 15, what is 15 − 7?”

LIA8.

YOU“And 15 − 8?”

LIA7.

YOU“One fact gives us four facts!”

The = sign

YOU“Is 14 = 7 + 7 true or false?”

LIATrue.

YOU“Yes. The = sign means both sides are the same. The answer can be on the left or the right.”

Other ways to say it다른 표현

“What is double 7?”
“What is 8 add 7?”
“What is 15 take away 7?”
“What do I add to 13 to make 20?”
“How many more to make 20?”
“What is 3 less than 12?”
“What is the total of 9 and 6?”
“Is it true or false?”
“What is the missing number?”

Good questions to ask좋은 질문

“How did you work it out?”
Note
Listen for clever ways: doubles, make 10, facts that go together.
“Can you find a quicker way?”
Note
For 9 + 6: 9 + 1 + 5 = 15.
“If you know 6 + 6 = 12, what is 6 + 7?”
Note
Near double: 13.
“Is 20 − 0 = 0 true?”
Note
False: taking away nothing leaves 20.

If Lia is stuck막힐 때

When
She counts on fingers for every fact.
That's OK at first. Then teach one strategy at a time: doubles first, then make 10.
When
She takes away the wrong way: 7 − 15.
“Start with the whole, the biggest number.”
When
She thinks = means “the answer comes next”.
Show both: 7 + 7 = 14 and 14 = 7 + 7. Use a balance picture: both sides the same.

Fact families (Year 2 guide)

Games (3)놀이

Game · Double trouble

You need: one dice

Roll the dice. Say the double: roll 4 → “double 4 is 8”.
Then say double plus one: “4 + 5 is 9”.

Game · Make 20 cards

You need: playing cards Ace to 10 (Ace = 1)

Turn over two cards. Add them. Then say how many more to make 20: “8 + 5 = 13. 13 and 7 make 20.”
If the total is over 10, subtract the smaller card from the total too: “13 − 5 = 8.”

Game · Dice facts race

You need: two dice, paper

Roll two dice. Add them. Write the fact and one related fact: 5 + 6 = 11 and 11 − 6 = 5.
How many can you write in 2 minutes?

Extra challenge더 도전

Three numbers: 7 + 3 + 8 = 18 (make 10 first!).
Missing numbers both sides: 9 + ? = 20 − 4.
Facts with tens: if 7 + 8 = 15, then 70 + 80 = 150.

In the workbook

Doubles, bonds to 20, true or false, and stories.

Teaching Guide · Numbers to 100 and facts within 20 · liabooks.com/study

For you D

Everyday English for maths time수학 시간 생활 영어

Useful sentences for giving instructions, praising and helping.

Starting and giving instructions

Say	It means
Let's do some maths.	Start of the session
Get your pencil, please.
Read the question.
Have a go.	Try it (it's OK to make a mistake)
Show me.	Show with objects or fingers
Count with me.
Write the number sentence.	Write 5 + 3 = 8
Fill in the missing number.	Complete the gap
Explain your thinking.	Say how you did it
Check your answer.
Circle the right one.
Underline the maths word.
Take your time.	There is no hurry
Say it in a full sentence.
Point to …
Let's do one together.

Let's do some maths.It meansStart of the session
Get your pencil, please.It means
Read the question.It means
Have a go.It meansTry it (it's OK to make a mistake)
Show me.It meansShow with objects or fingers
Count with me.It means
Write the number sentence.It meansWrite 5 + 3 = 8
Fill in the missing number.It meansComplete the gap
Explain your thinking.It meansSay how you did it
Check your answer.It means
Circle the right one.It means
Underline the maths word.It means
Take your time.It meansThere is no hurry
Say it in a full sentence.It means
Point to …It means
Let's do one together.It means

Praise that helps

Praise the effort and the thinking, not only the right answer. This helps children try hard things.

Praise

“Great thinking!”
“I like how you explained that.”
“You didn't give up. Well done!”
“That's a clever way!”
“You checked your answer. Good job!”
“You used a new maths word!”
“You found the mistake yourself!”
“Brilliant! Can you do another one?”
“You're getting faster!”
“I can see you worked hard.”

When the answer is wrong

Kind words for mistakes

“Nearly! Let's check together.”
“Hmm, let's look again.”
“Can you show me with the counters?”
“What do you notice?”
“Read the question one more time.”
“Mistakes help us learn.”
“That's a good try. What could we change?”
“Are you sure? How can we check?”

Ending the session

Talk about learning

“What did you learn today?”
“What was easy?”
“What was tricky?”
“Which new word did you learn?”
“Can you teach me one thing?”
“What do you want to practise tomorrow?”

How Lia can explain (sentence stems)

Sentence stem	Example
___ and ___ make ___.	7 and 3 make 10.
I have ___. I need ___ more to make 10.	I have 6. I need 4 more to make 10.
The whole is ___. The parts are ___ and ___.	The whole is 13. The parts are 9 and 4.
I know ___, so I know ___.	I know 3 + 4 = 7, so I know 30 + 40 = 70.
___ ones + ___ ones = ___ ones, so ___ tens + ___ tens = ___ tens.	2 ones + 5 ones = 7 ones, so 2 tens + 5 tens = 7 tens.
First I ___. Then I ___.	First I made 10. Then I added 3.
I think ___ is right / wrong because ___.	I think Amir is wrong because 20 + 50 is 70.
The answer is ___ because ___.	The answer is 9 because 9 + 7 = 16.

___ and ___ make ___.Example7 and 3 make 10.
I have ___. I need ___ more to make 10.ExampleI have 6. I need 4 more to make 10.
The whole is ___. The parts are ___ and ___.ExampleThe whole is 13. The parts are 9 and 4.
I know ___, so I know ___.ExampleI know 3 + 4 = 7, so I know 30 + 40 = 70.
___ ones + ___ ones = ___ ones, so ___ tens + ___ tens = ___ tens.Example2 ones + 5 ones = 7 ones, so 2 tens + 5 tens = 7 tens.
First I ___. Then I ___.ExampleFirst I made 10. Then I added 3.
I think ___ is right / wrong because ___.ExampleI think Amir is wrong because 20 + 50 is 70.
The answer is ___ because ___.ExampleThe answer is 9 because 9 + 7 = 16.

Counting time

Short sentences you can use every day.

Say	It means
Let's count together.
Your turn.
Keep going.	Continue
Start at …
Stop at …
Count up / count down.	Forwards / backwards
Louder, please!
Say it after me.	Repeat
What comes next?
What comes before …?
Write the number I say.	Dictation
How do you spell …?
Cover it and write it.	Spelling practice
Check with the 100 square.
Beat your score!	Try to get more right
That's a new record!	Best score

Let's count together.It means
Your turn.It means
Keep going.It meansContinue
Start at …It means
Stop at …It means
Count up / count down.It meansForwards / backwards
Louder, please!It means
Say it after me.It meansRepeat
What comes next?It means
What comes before …?It means
Write the number I say.It meansDictation
How do you spell …?It means
Cover it and write it.It meansSpelling practice
Check with the 100 square.It means
Beat your score!It meansTry to get more right
That's a new record!It meansBest score

Praise for counting

“Great counting!”
“You didn't stop once!”
“You got past 100!”
“Beautiful spelling!”
“You beat your score!”
“Your English is getting better every day!”
“You worked it out yourself!”

Teaching Guide · Numbers to 100 and facts within 20 · liabooks.com/study

이 세트의 단어

after / before — the number next up / next down
between — in the middle of two numbers
count on / count back — count forwards / backwards
digit — 0 1 2 3 4 5 6 7 8 9
double — the same number twice
equal to ( = ) — the same as
even / odd — even numbers are in the 2s count from 0; odd numbers are the ones in between
fewer / less / least — a smaller amount / the smallest
more / most — a bigger amount / the biggest
numeral — a number written in digits
one more / one less — the number after / before
ones / tens — the right digit / the left digit
pattern — numbers that change in the same way
pair — two things that go together

Teaching Guide · Numbers to 100 and facts within 20 · liabooks.com/study