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ELJ 03 : WONG SHEN WEI ( D20102041342 )
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Cheerful, Optimistic,Independent,straightforward, Have a great sense of humour - That's me!

Thursday 15 December 2011

Answer


Hellochildren. Have you completed the table given? Now, you can check your answer here.
Event started
Event ended
Duration
July 2008
December 2008
6 months
February 2009
March 2011
2 years and 2 months
26 June 2007
13 September 2010
3 years 2 months and 13 days

Solutions:

July
August
September
October
November
December
1 month + 1 month + 1 month + 1 month + 1 month +1 month
 = 6 months
The duration from July 2008 to December 2008 is 6 months.

February 2009 to
January 2010
February 2010 to
January 2011
February 2011 to
March 2011
1 year + 1 year + 2 months = 2 years and 2 months
The duration from February 2009 to March 2011 is 2 years and 2 months.


26 June 2007
to
30 June 2008
1 July 2008
to
30 June 2009
1 July 2009
to
30 June 2010
1 July 2010
to
31 August 2010
1 September 2010
to
13 September 2010

1 year + 1 year + 1 year + 2 months + 13 days =
3 years 2 months and 13 days
The duration from 26 June 2007 to 13 September 2010 is 3 years 2 months and 13 days.

Have a happy day.

Wednesday 14 December 2011

Duration


Hello, children. How’s your school holiday? Today, we’ll learn how to calculate the duration of an event in between months, years and dates.

Example 1
Saujana IT Centre offers a few computer courses as shown in the schedule.

Saujana IT Centre
Course Schedule for 2011
1. Photoshop Course
January to April
2. PowerPoint Course
March to June
3. InDesign Course
May to September

Adrian decides to attend a PowerPoint Course. What is the duration of the course?
 
Solution:
The duration of the course is calculated from the begining of March to the end of June.
March
April
May
June
1 month + 1 month + 1 month + 1 month = 4 month
The duration from March to June is 4 months.
Adrin will attend the course for 4 months.

Example 2
Puan Hamidah worked in Sekolah Kebangsaan Setia from June 2006 to October 2009. How long did she work in that school?

Solution:

June 2006 to
May 2007
June 2007 to
May 2008
June 2008 to
May 2009
June 2009 to
October 2009
1 year + 1 year + 1 year + 5 months = 3 years and 5 months

The duration from June 2006 to October 2009 is 3 years and 5 months.
Puan Hamidah worked in Sekolah Kebangsaan Setia for 3 years and 5 months.
 
Example 3
The pupils of Class 6 Hijau started their Science project on 15 April 2011. They completed their project on 8 July 2011. What was the duration of their project?

Solution:

15 to 30 April
1 May to 30 June
1 to 8 July
From 15 to 30 April : 30 – 15 + 1 = 16 days
From 1 to 8 July   : 8 - 1 + 1 = 8 days
16 days + 2 months + 8 days = 2 months 24 days
The duration from 15 April 2011 to 8 July 2011 is 2 months and 24 days.
The duration of their project was 2 months and 24 days.

 
Now, try to complete the table below.

Event started
Event ended
Duration
July 2008
December 2008


February 2009
March 2011


26 June 2007
13 September 2010
  

Tuesday 6 December 2011

Length


Good morning, children. Today, the topic that we learn is “length”.
The most common metric units of length used are the kilometre (km), the metre (m), the centimetre (cm) and the millimetre (mm)

These units of length are related as follows:

1 cm = 10 mm
1 m   = 100 cm
1 km = 1000 m

We would measure the:
  • thickness of the  book in millimetres (mm).
  • width of a computer screen in centimetres (cm).
  • width of a road in metres (m).
  • distance between two cities in kilometres (km).

We can use various instruments to measure length. For example : We use rulers and tape measures that are marked in millimetres or centimetres to measure shorter lengths accurately.

Now, we learn how to convert  metric units.

1)   To convert length from a larger unit into a smaller unit, multiply by the relevant  power of 10.

2)   To convert length from a smaller unit into a larger unit, divide by the relevant  power of 10.

Example:
1)   Convert  15 cm to mm.

15  x 10mm  =  150 mm                           ( 1cm = 10 mm )

2)   Convert  145.65 m to cm.    

145.65 x 100 = 14565 cm              ( 1m = 100 cm )

3)   Convert  ¾ km to m.

¾ x 1000 = (3000 ÷ 4) cm              ( 1 km = 1000 m )
                = 750 cm

4)   Convert  60 mm to cm.

60 ÷ 10 cm = 6 cm                          ( 1cm = 10 mm )

5)   Convert  8075 cm to m.

8075  ÷ 100 m = 80.75 m               ( 1m = 100 cm )

6)   Convert  750 000 m to km.

750 000 ÷ 1000 km = 750 km        ( 1 km = 1000 m )

You should be able to work confidently with metric units to solve problems in daily life.
Have a happy day and see you tomorrow.

3D Shapes Song


Friday 2 December 2011

Decimals

Hello, children. Today let's learn about decimals. First, you click the word - 
Decimals to start our lesson.


Now, you can try the exercise below to test if you understand the lesson.


Exercise


1)  42 - 6.75 + 3.221 - 6.51 =


2) 16.53 + 0.68 - 14.02 =


3)  18 - 6.45 - 1.8 = 46.73 - (        ) - (        )
     Calculating the total value of the two missing numbers.
4)  Add 24 to the difference of 314.464 and 19.20.


5)  P  =  2.65 - 0.821
     Q =  0.51 + 3.689
     P + Q =  ?


Now, you can check your answers here.


Answers:


1)  42.00 - 6.75 = 35.25
     35.25 + 3.221 = 38.471
     38.471 - 6.51 = 31.961


2)  16.53 + 0.68 = 17.21
     17.21 - 14.02 = 3.19


3)  18.00 - 6.45 = 11.55
     11.55 - 1.8 = 9.75
     46.73 - 9.75 = 36.98
     The total value of the two missing numbers is 36.98.


4)  314.464 - 19.20 = 295.264
     295.264 + 24 = 319.264


5)  P = 1.829
     Q = 4.199
     P + Q = 6.028


If you get all correct, well done! If you make some mistakes, make a greater effort. ^-^



Thursday 1 December 2011

Pie Chart


Hi, children. Today we will learn about pie chart.

Do you know what is a pie chart?

A pie chart is a circular chart in which the circle is divided into sectors.  Each sector visually represents an item in a data set to match the amount of the item as a percentage or fraction of the total data set.

Example

The table below shows the favourite sports of  the pupils of  6 Hijau.

Sports
No. of Pupils
Basketball
25
Netball
10
Soccer
15

Draw a pie chart to display the information.
Step 1
The total number of pupils of 6 Hijau   = 25 + 10 + 15
                                                                        = 50
Step 2
We can find what percentage of the favourite sports each item equals.

Percentage of the favourite sports on:


Basketball    = 25   x  100%  =  50%
                         50
Netball            = 10   x  100%  = 20%
                          50
Soccer            = 15   x  100%  = 30%
                          50

Step 3
To draw a pie chart, divide the circle into 100 percentage parts.  Then allocate the number of percentage parts required for each item.