Wednesday 29 April 2020

Primary Maths Vocabulary and Model

NAMING Position/Words
First (1st), second (2nd) , third (3rd) , Fourth (4th), … tenth(10th)
Between, odd number, even number, left, altogether, twice, thrice

FRACTIONS
halves, quarters, fifths, tenths, whole, part

COMPARE and ORDER
(1)   Great/greater/greatest; as great as, greater than
(2)   Small/smaller/smallest; as small as, smaller than
(3)   Many/More/Most; as many as, more than       
(4)   Little/Less/Least; as little as, less than
(5)   Few/Fewer/Fewest; as few as, fewer than
(6)   Long/Longer/Longest; as long as, longer than                     
(7)   Short/Shorter/Shortest; as short as, shorter than
(8)   Tall/Taller/Tallest, taller than, as tall as  
(9)   Heavy/Heavier/Heaviest; as heavy as, heavier than                          
(10) Light/Lighter/Lightest; as light as; lighter than

EQUAL/ADD/SUBTRACT/MULTIPLY/DIVIDE
EQUAL:  
~ value of, same as, answer, represents, means, will be, whole lot
ADD:
~ more than, total, sum of, increase, plus, additional, and
MINUS/SUBTRACT:
~take, decrease, subtract, remove, subtraction, take away, pull, difference, less than, take
MULTIPLCATION:
multiply, times, lots of, by, product of, of, power of, bracket () = square
DIVISION: 
the fraction line -, divide, /, split, group, out of, give

MONEY
(1) Expensive/More Expensive/Most Expensive; as expensive as                     
(2) Cheap/Cheaper/Cheapest; as cheap as, cheaper than
(3)  Mary receives a Change of $20.
(4) Judy’s saving is 80cents.

TIME
1.        O’clock                        2.       Midnight                    3.       Morning
4.        Noon                           5.       Afternoon                  6.       Night
7.        a.m.                             8.       p.m.                          9.       Hour
10.      Minutes                      11.      Seconds                  12.       Earlier
13.      Later                          14.      Before.                     15.       After
16.      Minutes past              17.      Minutes to                18.      Quarter past
19.      Quarter to                  20.      Half past                   21.      Clockwise
22.      Anti-clockwise           23.      Starting time             24.      Finishing time
25.      Duration                    26.      Slower                      27.      Faster

SHAPE
edge, corner, face, round, curve, straight line
square, rectangle, triangle, trapezium, rhombus, parallelogram, circle, semicircle, quarter circle
sphere, cylinder, cone, cube, cuboid
<<< tri ~ 3 , quad ~ 4, cir ~ round >>>

GEOMETRY
angle, acute, obtuse, reflex
perpendicular, parallel, vertical, horizontal
equilateral triangle, isosceles triangle, scalene triangle, right-angle triangle
Vertically opposite angles, corresponding angles, alternate angles
turns, rotation, clockwise, anti-clockwise

ADDITIONAL WORDS

Exchange, Transfer, Age, Equal at the start, Finally, Increase by, Altogether


MORE ON = + - x / 

Example
The number of circle is THE SAME AS the number of triangles
The number of circle is EQUAL to the number of triangles


Smallest, Largest 
Smallest: of the least value as compared to others
Largest: of the biggest value as compared to others
Example: 
            (a)    0 ,1 4, 7, 8
            (b)    2, 4, 6, 8, 0
            (c)    3, 5, 4, 6, 9
            (d)    9, 8, 6, 4, 0
Which number-set is arranged in order, beginning with the smallest? (a)
Which number-set is arranged in order, beginning with the largest? (d)

Odd Number
Numbers ending with 1, 3, 5, 7, 9
Even Number
Numbers ending with 0, 2, 4, 6, 8

Compare

More Than
4 is more than 3
The number of circles is more than the number of triangles

Less Than
            3 is less than 4
The number of triangles is LESS THAN the number of circles



EXPENSIVE/CHEAP
Expensive/More Expensive                    Cheap/Cheaper 
Most Expensive                                                      Cheapest

Change
Example
Mary bought a pair of shoes for $30. She gave a $50 notes to the cashier. What is the change she receives from the cashier?
  $50 - $30 = $20
Mary receives a change of $20.



TIME
Before, To, Later, After, Past
           
START TIME, DURATION, END TIME
                   

MODEL DIAGRAM Terms

FRACTIONS Terms

=>In Model Representation, 
            The numerator is the shaded portion
            The total number of squares is the denominator
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