Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdAbout
AboutM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
When we say that there are about 20 people, we mean that the actual number of people is close to 20.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdAfternoon
AfternoonM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
The time of the day that is between morning and night.
Example:
Ari eats his lunch at 1 o’clock in the afternoon.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdAs heavy as
As heavy asM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
Having the same mass.
Example:
The pineapple is as heavy as the bag of apples.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdAs long as
As long asM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
Having the same length.
Example:
Ribbon B is as long as Ribbon D.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdAs short as
As short asM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
Having the same length; also means ‘as long as’ or ‘as tall as’.
Example:
Dotty is as short as Curvy.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdAs tall as
As tall asM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
Having the same length; also means ‘as short as’.
Example:
Dotty is as tall as Curvy.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdCapacity
CapacityM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
The capacity of a container is the measure of how much the container can hold.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdCents
CentsM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
One of the units for money; we use ¢ to stand for cents.
Example:
The dime has a value of ten cents (10¢).
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdCoin
CoinM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
A coin has two sides and can have different values.
Example:
These are some coins.
Nickel5¢
Quarter25¢
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdColumns
ColumnsM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
A table is made up of columns.
Example:
The table shown above has 3 columns.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdData
DataM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
Also means information.
Example:
The data in the table shows the type and number of sports items in the sports room.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdDay
DayM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
There are seven days in a week – Monday, Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdDime
DimeM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
A dime has a value of ten cents (10¢).
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdDollars
DollarsM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
One of the units for money; we use $ to stand for dollars.
Example:
This is a dollar coin. It has a value of one dollar ($1).
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdDouble
DoubleM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
When we find the double of a number, we add the number to itself.
Example:
Double 2 is 2 + 2.So, double 2 is 4.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdEmpty
EmptyM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
When we say something is empty, it means that it does not contain anything.
Example:
Glass B is empty.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdEqually
EquallyM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
In the same amount.
Example:
Tom has 4 crayons. He shares his crayons equally with Ari.
Each of them gets 2 crayons.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdEven
EvenM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
The number of items in a group is even if the items can be shared equally into two groups.
Example:
2, 4, 6, 8 and 10 are even numbers.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdEvening
EveningM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
The time of the day that is between afternoon and night.
Example:
Rita eats her dinner at half past 6 in the evening.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdExchange
ExchangeM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
Replace with something else that has the same value.
Example:
I can exchange 1 ten-cent coin for 2 five-cent coins.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdFull
FullM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
When we say a glass is full, it means that it is filled to the brim and cannot contain anything more.
Example:
The glass is full.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdHalf-dollar
Half-dollarM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
A half-dollar coin has a value of fifty cents (50¢).
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdHalf full
Half fullM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
When we say a glass is half full, it means that it is exactly half-filled with water. We can also say that a half full glass is half empty.
Example:
The glass is half full.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdHalf past
Half pastM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
When the minute hand is pointing at 6, we read the time as half past.
Example:
The time is half past 2.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdHeading
HeadingM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
The headings of a table tell us what data is in each row or column.
Example:
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdHeavy
HeavyM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
Having a large mass.
Example:
The sack of potatoes is heavy.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdHeavier
HeavierM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
Having more mass than another item.
Example:
The pineapple is heavier than the papaya.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdHeaviest
HeaviestM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
Having the greatest mass of all the items.
Example:
The watermelon is the heaviest.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdHigh
HighM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
Refers to a position that is far upwards or above the ground.
Example:
The balloons are high up in the sky.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdHigher
HigherM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
Being further upwards or further away from the ground than another item.
Example:
The green balloon is higher than the orange balloon.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdHighest
HighestM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
Being furthest away from the ground.
Example:
The blue balloon is the highest of the three balloons.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdHolds less
Holds lessM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
Example:
Container A holds less water than Container B.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdHolds more
Holds moreM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
Example:
Container B holds more water than Container A.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdHour hand
Hour handM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
The hour hand is the shorter hand on the clock. It shows the hour.
hour hand
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdLarger capacity
Larger capacityM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
Having the ability to hold more than another container.
Example:
The red pot has a larger capacity than the blue pot.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdLargest capacity
Largest capacityM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
Having the ability to hold the most among a group of containers.
Example:
Container B can hold the most, so it has the largest capacity.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdLight
LightM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
Having a small mass.
Example:
The feather is light.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdLighter
LighterM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
Having less mass than another item.
Example:
The tennis ball is lighter than the basketball.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdLightest
LightestM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
Having the least weight.
Example:
The beach ball is the lightest.
tennis ballbeach ball
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdList
ListM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
A way of organising data.
Example:
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdLong
LongM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
Example:
Crayon A is long.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdLonger
LongerM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
Example:
Crayon B is longer than Crayon A.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdLongest
LongestM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
Example:
Crayon C is the longest.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdMinute hand
Minute handM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
The minute hand is the longer hand on the clock. It shows the minutes.
minute hand
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdMonth
MonthM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
There are 12 months in a year – January, February, March, April, May, June, July, August, September, October, November and December.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdMorning
MorningM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
The time of the day that comes just after the sun rises.
Example:
Min eats her breakfast at 7 o’clock in the morning.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdNearly empty
Nearly emptyM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
Almost does not contain anything.
Example:
Container D is nearly empty.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdNearly full
Nearly fullM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
Almost filled up to its brim.
Example:
Container B is nearly full.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdNickel
NickelM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
A nickel has a value of five cents (5¢).
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdNight
NightM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
The time of the day that comes just after the sun sets.
Example:
Tom goes to bed at 10 o’clock at night.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdO’clock
O’clockM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
When the minute hand is pointing at 12, we read the time as o’clock.
Example:
The time is 7 o’clock.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdOdd
OddM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
The number of items in a group is odd if there is 1 left over after sharing the items equally into two groups.
Example:
3, 5, 7, 9 and 11 are odd numbers.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdPenny
PennyM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
A penny has a value of one cent (1¢).
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdPictogram
PictogramM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
A way to organise data using pictures or symbols; can also be known as a picture graph or pictograph.
Example:
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdQuarter
QuarterM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
A quarter has a value of twenty-five cents (25¢).
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdRows
RowsM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
A table is made up of rows.
Example:
The table shown above has 2 rows.
row
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdScale
ScaleM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
We can measure mass of objects using a scale.
Example:
The pineapple is as heavy as the bag of apples.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdShare
ShareM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
Giving someone a certain amount of an item such that both end up with some of the same item.
Example:
Sofea buys some sweets and shares some with her brother.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdShort
ShortM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
Example:
Crayon A is short.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdShorter
ShorterM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
Example:
Crayon C is shorter than Crayon A.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdShortest
ShortestM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
Example:
Crayon B is the shortest.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdSmaller capacity
Smaller capacityM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
Having the ability to hold less than another container.
Example:
The blue pot has a smaller capacity than the red pot.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte Ltd
Smallest capacity
Smallest capacityM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
Having the ability to hold the least among a group of containers.
Example:
Container C can hold the least, so it has the smallest capacity.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdStart line
Start lineM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
Used when comparing lengths.
Example:
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdTable
TableM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
A way to organise data.
Example:
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdTall
TallM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
Example:
Giraffe A is tall.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdTaller
TallerM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
Example:
Giraffe B is taller than Giraffe A.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdTallest
TallestM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
Example:
Giraffe C is the tallest.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdTitle
TitleM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
The title of a table tells us about the type of data presented in the table.
Example:
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdToday
TodayM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
Example:
If yesterday was Tuesday and tomorrow is Thursday, then today is Wednesday.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdTomorrow
TomorrowM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
The day that comes after today.
Example:
If today is Wednesday, then tomorrow is Thursday.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdUnit
UnitM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
We can write the lengths or masses of objects in units.
Example:
The length of the magnifying glass is 5 units.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdValue
ValueM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
The amount of something.
Example:
The value of a dime is ten cents.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdWeek
WeekM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
A week is made up of seven days.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdWeekends
WeekendsM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
Saturday and Sunday are known as the weekends.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdWeekdays
WeekdaysM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
Monday, Tuesday, Wednesday, Thursday and Friday are known as the weekdays.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdYear
YearM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
A year is made up of 12 months.
Maths SM
ART Grade 1 ©
2012 Alston Publishing House Pte LtdYesterday
YesterdayM
aths SMART G
rade 1 © 2012 Alston Publishing H
ouse Pte Ltd
The day that comes before today.
Example:
If today is Wednesday, then yesterday was Tuesday.