Lesson
: 35
Topic
: Volume of liquid
Learning Area
: Operations on Volume of liquid
Learning Objective
: Add and subtract units of volume
Learning Outcome
: Solve problems involving computations for volume of liquids
Previous Knowledge : Pupils are able to know the relationship between units of volume of liquid Problem
: Pupils are not able to solve problems based on basic operations involving conversion of units of volume of liquid
Vocabulary
: Convert, vertical form, decimal number, decimal point, mixed decimal, straight line, total volume, add, subtract, left, difference
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Suggested Activities Step 1 : Revised the relationship between units of volume of liquid using Table AKU :
Litres
Millilitres
2
6
Litres
4
2
2 642
ml
= 2.642
l
Millilitres
3
3 l 516 ml = 3 516 ml
516
= 3.516
l
Step 2 : Add units of volume 1 504 ml of water is added into 5.4l of water. What is the total volume of the water in litres? i.
Convert to litres
1 504
Litres 1
ml
add
5.4
l
Millilitres 5
0
1.504 l
4
+
5.4 l
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ii.
Add the volumes of liquid in the vertical form. The decimal point must be aligned.
1.504 l + 5.400 l 6.904 l
Step 3 : Subtract units of volume There are 12.275 l of water in container P. 6 l 245 m l of the water are used. How many litres of water are left?
12.275
l
Write the number sentence in vertical form Convert litres and millilitres to litres using Table AKU 12.275
l -
l 245 ml
6
litres 6
millilitres 2
4
5
6.245 l Step 5 : Subtract units of volume in vertical form. The decimal point must be aligned.
-
12.275 l 6.245 l 6.030 l
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EXERCISE 1 Name : _____________________ Class : __________ Date : __________ Answer the questions.
l and 2.81 l
1.
Find the total of 6.172
2.
Calculate the total volume of water in litres in these two tanks
2.12 3.
l
4 037
ml
The diagram below shows the volume of water in a container. 1 l 445 ml of water is added into the container. What is the total volume of water in l, in the container now ?
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There are 5.928 l of mineral water in a bottle. Azman drank 1 542 ml of the water.
4.
Calculate the volume of water left in litres in the bottle.
5. What is the difference in litres between 5 l 664 ml and 10.68 l
6.
Which of the following has the largest volume of liquid
5.135
l
- 2.84
l
7 226
8
ml
l 660 ml
- 4.51
- 5.346
l
l
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Lesson
: 36
Topic
: Volume of liquid
Learning Area
: Operations on Volume of liquid
Learning Objective
: Multiply and divide volume of liquid
Learning outcomes : Solve problems involving computations for volume of liquids Previous knowledge : Pupils know the relationship between the units of volume of liquid Problem
: Pupils are not able to do basic operation involving conversion of units of volume of liquid
Vocabulary
: Multiply, product, vertical form, divide, long division, each, equally
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Suggested Activities Step 1 : Multiply volume of liquid There are 428 ml of water in a bottle. How many litres of water are there in 7 identical bottles?
428
ml
428
ml
428
ml
428
ml
428
ml
428
ml
428
ml
Dynasty Of Seven Write the number sentence in vertical form. Use Dynasty of 7 to multiply the numbers as shown.
4 x
2 8 ml 7
2 9 9 6 ml
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7 14 21 28 35 42 49 56 63
Step 2 : Convert, millilitres to litres using ‘Table Aku’ Litres
Millilitres
2
9 2 996
9
6
ml = 2.996 l
Step 3 : Divide volume of liquid 16
l 832 ml of water are poured equally into 8 bottles. What is
the volume of water in each bottle?
16
16
l 832 ml
l 832 ml
÷8
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Step 4 : Convert litres and millilitres to litres using ‘Table Aku’ Litres 1
6
Millilitres 8
3
2
16
ml
832
ml = 16.832 l
Solve the problem using long division. Refer The Dynasty Of 8 to divide the numbers.
Dynasty Of Eight
_________ 2.1 0 4 l ) 8 1 6.8 3 2 l
8
_1 6
16
8 _8
24 32
3 _0 3 2 _3 2
40 48 56 64 72
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EXERCISE 1 Name : _____________________ Class : __________ Date : __________ Answer the questions.
yl
2.5 l
1.
The diagram shows a basin and a bottle. What is the total volume of water in the basin, if 5 bottles full of water are poured into it?
2.
There are 5 350ml of paint in a tin. How many litres of paint are there in 6 tins?
3.
Husni drinks 27.44l of water in a week. Calculate the volume of water that Husni drinks in a day.
4.
A jar holds 6 250ml of water. Sarepah pours the water equally into 5 glasses. What is the volume of water in each glass?
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Lesson
: 37
Topic
: Shape and Space
Learning area
: Composites Two Dimensional Shapes
Learning objective
: The perimeter of composites two-dimensional shapes
Learning outcome
: Measure and calculate the perimeter for the following composites 2-D shapes : a. Square and square b. Rectangle and rectangle c. Triangle and triangle d. Square and rectangle e. Square and triangle f.
Rectangle and triangle
Previous knowledge : Pupils have learnt how to find the perimeter of a 2-D shapes Problem
: Pupils are not able to calculate the perimeter of a composite 2-D shapes
Vocabulary
: Shape, combination, square, rectangle, triangle, area
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SUGGESTED ACTIVITIES Step 1 (Revision exercises) Find the perimeter for the diagrams below.
8 cm 2.
1. 4 cm
3 cm
3.
5 cm
Note: The perimeter of a shape is the sum of the outer length of its sides Example 1 : Find the perimeter of the composite 2-D shape 4 cm
9 cm The diagram shows combined shapes of an equilateral triangle and a rectangle. To find the perimeter, just add the outer lengths of the 2 shapes. Perimeter = 4 cm + 4 cm + 9 cm + 4 cm + 9 cm = 30 cm 158
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