Homework for 27 Oct (Thu)

To complete Q 62 - Q 66 of Math WS .

No need to do Question 63 (b) due to question error.

For SA 2 do revise your Heuristic skills ( Worksheets) especially those taught in Semester 2

 

Stretch Worksheet on Area & Perimeter

Hi 4A,

This post is for Question 1 of our Area & Perimeter Stretch Worksheet.

Method 1 solution :

To visualise by removing  the concrete path and rejoining the remaining park.

Hence the length became : 30m - 3m = 27m

Area  covered by grass =  Length x Breadth
                                      =   30 m x 27 m
                                        = 540 square metres 

Some of you came up with the alternative solution of finding the area of the concrete path.

Method 2 solution: 

 Area of concrete path = 3 x 20 = 60 square metres
Area of Park = 30 x 20 = 600 square metres
Area covered by grass = 600 - 60 = 540 square metres

For this solution , we need to find the area of 2 parallelograms first ( which is also Length x breadth)

Watch this video to help you visualise.

3/10 Math Homework

To complete Math SA 2 Practice Paper 2 . Do show your workings clearly in all sections.


I have returned you the following today for your filing :

1) WB Chapter 13 Area & Perimeter
2) WB Revision 2
3) Chapt 13 - EDP WS 3

30/9 Math Homework

To complete Math WB Chap 14 (Tables & Line Graphs) Pg 151 - 156

I have returned the following today for your parent's signature:

1) EDP WS : Chapter 15 Time WS 2
2) EDP WS : Chapter 13 Area & Perimeter WS 1 and WS 2

For finding perimeter of a composite figure, do use the highlighting method for finding sides of same length .

This helps you to add up less sets of numbers and hence reduce the possibility of calculation errors.

 Adding up all the sides of a composite figure to find perimeter.

 

Adding up all the 8 sides separately  may cause calculation errors . 

 Examples of highlighting method: 

Using highlighting method , we only need to add 4 sets of numbers to find teh perimeter compared to 8 sets of numbers. 

Using highlighting method, we added up 4 sets of numbers to find the perimeter compared to adding 8 sets of numbers . 

Another example: We added up 6 sets of numbers ( 2 greens sides, 2 yellow sides and 2 purple sides ) instead of adding up 8 sides.  
    

29/9 Math Homework

Please complete Math Review 6 for those who are unable to finish it in class today.
This is due tomorrow .

27 Sep Math HW

To complete Math WB Revision 2 corrections.
I will go through selection questions tomorrow in class.

26 /9 math homework

To complete Area and Perimeter Worksheet 3. This is due tomorrow.

23 Sep Math Homework

We did a SA2 Practice Paper today.

For those who were unable to complete it in class,please finish it  over the weekend.

We will go through the answers next week.

22 Sep Math Homework

1. Math WB Review 13 ( Due next Monday)

2. Koobits (12 Questions on Area & Perimeter ) This is also due next Monday.

 http://problemsums.koobits.com/Homework/Access/282172

20 Sep Math Homework

1) Complete Math WB Pg 133 - 134. This is due on 22 Sep.

2) The Math WB and Math files have been returned to you today. Pls file the completed work at home on their own. Do also revise on questions that you made mistakes in.  

    The following  work are returned for filing today: 

    - Math WB Chapter 12 ( Decimals Word Problem)  --> get parent signature and file in Math                                                                                                    WB 
    - EDP Math WS : Decimals Word Problem  -- > file in Math File 
    - Heuristic WS (Before & After : Amount transferred given) --> file in Math File

Important: 

There is NO Topical Test this term.
Instead , we will be completing 2 Practice Papers to prepare for SA2.

    

19 Sept Math Homework

1. Math WB Chapter 12 Review corrections 

2. Area & Perimeter WB pg 125 - 131

15 Sep Homework

To complete school Math Worksheet 2 on Time.

This is due next Monday.

14 Sep Homework

- To complete Math WB Unit on Area & Perimeter (Pg 119 - 126 ) for those who are unable to complete in class today.

-  A reminder to bring back Math Blue File with parents' signatures tomorrow.

Homework for 13 Sep

Math Homework for today due tomorrow :

- Math WB Chapter 12 Review Pg 112 - 118

Science Heat Worksheet

Hi 4A,

You can find the asnwers to the Science Heat WS by clicking here.

May you have a good rest this long weekend!

Survey for Reading @ EDP

Hi 4A pupils,

Please complete the survey below:

Click here


Ms Oh

Ordering of Fractions - Best Practices

Best practices for ordering of fractions.

Step 1 : Converted to equivalent fractions of the same denominator

Step 2 : Label "greatest, middle and smallest' by their sides.

Step 3 : Circle the original fractions as given in teh questions.

Step 4 : Transfer the fractions into your  answer space in increasing or decreasing order as required    
              by the question.

Step 3 is important to remind yourself to express your final answer following the fractions given in the questions and NOT the equivalent fraction you have converted.  Many of you made the mistake of writing your final answers as the converted fractions.

Decimals

Here are some photos of our class learning decimals.

Getting them familiar with the place value of decimals.

June Holidays Homework

Hi 4A ,

Please go to the following Koobits website to complete you June Holiday assignment:

http://problemsums.koobits.com

Student ID : Your Birth cert No.
Password: Your Birth cert No. 

The lesson is open only from 30 May - 27 June 2016.


There are 2 assignments :

1) Multiplication & Division
2) Factors & Multiples 

While you take a break and recharge , do also catch up on some of your work.
Stay safe and may you enjoy more bonding time with your family.

Regards,
Mrs Ow Yong

Comparing Fractions

We had a class activity where we work with poker cards to compare fractions.


Challenge 1 

The pupils worked in pairs to pick 2 random cards each. The smaller digit will be the numerator and the larger digit will be the denominator.

They compare the fractions doing the workings in their notebooks and the player with the larger fraction wins a point.

They next form improper fractions and compare them too.

Challenge 2 

They next work in groups of 4 to compare and order their fractions. The player with the greatest fraction wins 4 points. The next player with the next greater fractions wins 3 points and so on . The player with the smallest fraction earns 1 point.

This is more challenging and I love the rich math discussion that were going on in the groups as they taught each other how to compare. I observed that pupils were using Math language to reason and "convince" their group members why they fraction is the greatest.

Special thanks to all the parents who loaned and contributed the cards.

Here are some photos of our activity and learning .

                          Thank you Joel Tan for helping me to capture the above concepts taught.

Challenge 2 ...working in groups of 4 

 

Of Fractions, Cheering and Self-Study

Hello from the other side,

I am here with useful content. Sit back, read EVERYTHING patiently and focus hocus pocus.


1. About your math homework (video links below)

Homework is MPAH WB 4B Pg 5-10 (I'm looking at the few of you who didn't bring your books today >:(   the rest of you have already done at least up to page 7)
Due WEDNESDAY, 4th MAY

Pg 7:
As mentioned, Question 1 breaks it down for you step by step. There are blanks for you to write down ALL your working.

Question 2 cuts straight to the chase: they give you a mixed number, you give them the improper fraction.
Use the diagram and your common sense (hehehe) to check your answer!

Pg 9:
Question 1: Do all your working EXACTLY as is shown in 1(a). Again for your reference, here is how I did it:

And here are 2 videos: the one I showed you, as well as our good friend from Math Antics.


2. Your Class Cheer

Here's the cheer I suggested, use it if you like it.

4A dynamite, don't mess with dynamite! *clap* *clap* *clap*        x2
(now stomp your feet too)
4A dynamite, don't mess with dynamite! *clap* *clap* *clap*        x2
Ohhhhh.... 4A!
HA! (right hand up)
HOO! (left hand up)
HAIYA!!! (in your best Bruce Lee voice, and in a fighting stance)

Here's another one, as a bonus:

Leaders (about 5 people): When I say 4A you say OH!
Leaders:4A!
Class: OH!
Leaders: 4A!
Class: OH!

Leaders: When I say 4A you say YEAH!
Leaders: 4A!
Class: YEAH!
LEaders: 4A!
Class: YEAH!

Leaders: When I say 4A you say OH, when I say 4A you say YEAH
Leaders: 4A 4A!
TOGETHER: Ohhhhhhhh YEAHHHH!!!!!!!

(sorry I couldn't find videos for these heh)

3. Self-Study

Here's the rough schedule I wrote on the whiteboard just now, which you can use to revise/study ANY subject. All you need is your textbook and a blank sheet of paper.

1 min - skim (flip through the chapter, reading only TITLES and WORDS IN BOLD
1 min - jot down what you recall
3-5 mins - read the chapter (re-read if you're done before the time is up)
2 mins - closed book recall (close your book and jot down everything you can recall from your reading)
3-5 mins - read again
2 mins - closed book recall
3 mins - open book recall (now you can refer to your book to fill in any gaps or points you missed)
5 mins - short break

Voila, one chapter done.

Adjust the timings as necessary, for example you might find that 5 minutes of reading is too short, so bump it up to 8. Or you might find that 2 minutes is not enough to write down all you can recall, so bump it up to 3 or 4 minutes.

Alright that's all from me. See y'all tomorrow.

Take care of yourselves and one another, and always be nice.

SYMM | MMY5

Greetings, students of 4A. It is I, here to send you a message from beyond (the classroom, not from the grave).

Some of you might have this symbol all over your worksheet:

That is what you call a crosshair. It is used in many contexts but some of you might recognize it from your shooter or sniper games. It draws your focus to the centre, and is used for ACCURATE positioning.

If YOU see a crosshair on your worksheet it means I have an issue with the accuracy of your drawing. Sometimes I also indicate with an arrow WHERE you were inaccurate.

Here's what you need in your symmetry drawings:
1) use a pencil and ruler
2) use a dashed line - - - - - - - - - -
3) it must cut the figure EXACTLY into two equal halves that are mirror images
4) let the line start and end OUTSIDE the figure, like this:

And remember your origami paper?

The fold you made was the line of symmetry. If you didn't realize that then I hope you are #mindblown.

 

Here is the shape that Gabriel made with his origami paper. Arrange it one way and you have a symmetric shape, the other and it isn't.

At first it isn't symmetric:

Then we flip one half and voila! Symmetric!

Lastly, if you're still not clear or satisfied with the demonstration of the dollar sign NOT being a symmetric shape, then... be a little hardworking and draw it out for yourself! Hard work pays off :D

That's all, folks. Take care of yourselves, of one another, and always be nice.