Here are the answers to the missing questions.

Qn 18: CD = 25.7cm

Qn 19: angle of elevation = 65.4 degrees

Qn 20: 5 more workers are needed

Mrs Sin

Here are the answers to the missing questions.

Qn 18: CD = 25.7cm

Qn 19: angle of elevation = 65.4 degrees

Qn 20: 5 more workers are needed

Mrs Sin

I am available for consultations on the following days and times.

Wednesday 3 Oct, 2.30, 2.50, 3.10pm

Thursday 4 Oct, 3, 3.20, 3.40pm

Friday 5 Oct, 1245, 1.05, 1.25, 1.45, 2.05, 2.25, 2.45

Each slot is 20 min and I can see 2 students maximum per slot. Please come with ready questions so that our session is short and sharp.

If there are no other students after you then I can continue to see you in the following slot.

I will update the schedule accordingly if I have other meetings to attend.

Kindly send me an email/ inform me in class __AT LEAST ONE DAY IN ADVANCE__ if you wish to see me as I would like to keep the group small for each session.

Thank you.

Mrs Sin

The following is the assignment of questions for the performance task (Probability).

Pravin, Ragul: Question 1

Princeton, Saishwar, Jun Wei: Question 2

Sean, Nicholas, Cameron: Question 3

Guo Jun, Hung Kye, Ming Yang: Question 4

Hamidshah, Nathaniel, Isaac: Question 5

Yong Hong, Darren, Dominic: Question 6

Dylaine, Jamie, Jean Yee: Question 7

Alvin, Zhi An, Marcellus: Question 8

Please inform me if you are reshuffling your group.

**UPDATE: The deadline and time is not negotiable. Please submit your PT via any of the following options (1) Submit folder (2) email (3) link on blog**

**If you email it to me, you should expect a reply from me. If there is no reply, it means that I have not received it.**

Pravin, Ragul: Question 1

Princeton, Saishwar, Jun Wei: Question 2

Sean, Nicholas, Cameron: Question 3

Guo Jun, Hung Kye, Ming Yang: Question 4

Hamidshah, Nathaniel, Isaac: Question 5

Yong Hong, Darren, Dominic: Question 6

Dylaine, Jamie, Jean Yee: Question 7

Alvin, Zhi An, Marcellus: Question 8

Please inform me if you are reshuffling your group.

Deadline for the task is 2 weeks from today, 2 October 2012 1300 hours.

Every late submission will result in loss of marks.

You are to work in pairs or trios.

Every late submission will result in loss of marks.

You are to work in pairs or trios.

After playing the game with your partner, post the probability of Player 1 winning the game in the spreadsheet here.

Calculate the theoretical probability in groups of 2 or 4.

After you are done,

1. fill up the answer in the box

2. take a photo of the answer (box)

3. upload it under "comments" to this post.

After playing the game with your partner, post the probability of Player 1 winning the game in the spreadsheet here.

Calculate the theoretical probability in groups of 2 or 4.

After you are done,

1. fill up the answer in the box

2. take a photo of the answer (box)

3. upload it under "comments" to this post.

A website that illustrates the terms through a simple example.

Dear students

I am unwell today. In my absence, please ensure that the following are completed.

**Ace-Learning**

Complete the following quizzes:

1. Linear Simultaneous Equations

2. Matrices Quiz 2

3. Matrices Quiz 3

**Geometrical Constructions**

1. How much do you know about Geometrical Constructions? : Google Form on blog

2. 3 assigned questions as stated on blog (worksheet on Google site) -*Saishwar please collect**, thank you*

**Probability**

Complete the quiz__Probability Quiz 1__ after reading the assigned chapter.

Complete__Mini-Task 1__ from the notes.

Thank you.

Mrs Sin

*If you have an hour, would you spend it on improving yourself or idling it away?*

I am unwell today. In my absence, please ensure that the following are completed.

Complete the following quizzes:

1. Linear Simultaneous Equations

2. Matrices Quiz 2

3. Matrices Quiz 3

1. How much do you know about Geometrical Constructions? : Google Form on blog

2. 3 assigned questions as stated on blog (worksheet on Google site) -

Complete the quiz

Complete

Thank you.

Mrs Sin

Answers for both assignments are up on google site.

There are also some amendments on two questions from Assignment 2. Please check.

Kindly pass the word around.

There are also some amendments on two questions from Assignment 2. Please check.

Kindly pass the word around.

Dear all
Here are the videos we used in class today.

Perpendicular Bisectors

Video 1: http://www.youtube.com/watch?gl=SG&feature=related&hl=en-GB&v=RKk7EuLunQ8 Video 2: http://www.youtube.com/watch?v=YjOI1p2sZ9w&feature=relmfu

Angle Bisectors

Video 1: http://www.youtube.com/watch?v=ug3TasAxvOk&feature=related

Please read the following Examples from Ace-Learning

1. Construction of triangle given three sides

2. Construction of triangle given an angle and two sides

3. Construction of triangle given 1 side and two angles

4. Construction of quadrilateral

Assignment to be completed:

Qn 1, 4, 6 Reg 1, 3, 5, 7

Qn 2, 5, 7 Reg 2, 4, 6, 8

Qn 3, 4, 6 Reg 9, 11

Qn 3, 8, 9 Reg 10, 12, 14

Qn 5, 9, 10 Reg 17, 19, 21, 23

Qn 1, 8, 10 Reg 18, 20, 22

Qn 2, 6, 7 Reg 13, 15, 16

DEADLINE: Term 4 Week 1 First Lesson

Perpendicular Bisectors

Video 1: http://www.youtube.com/watch?gl=SG&feature=related&hl=en-GB&v=RKk7EuLunQ8 Video 2: http://www.youtube.com/watch?v=YjOI1p2sZ9w&feature=relmfu

Angle Bisectors

Video 1: http://www.youtube.com/watch?v=ug3TasAxvOk&feature=related

Please read the following Examples from Ace-Learning

1. Construction of triangle given three sides

2. Construction of triangle given an angle and two sides

3. Construction of triangle given 1 side and two angles

4. Construction of quadrilateral

Assignment to be completed:

Qn 1, 4, 6 Reg 1, 3, 5, 7

Qn 2, 5, 7 Reg 2, 4, 6, 8

Qn 3, 4, 6 Reg 9, 11

Qn 3, 8, 9 Reg 10, 12, 14

Qn 5, 9, 10 Reg 17, 19, 21, 23

Qn 1, 8, 10 Reg 18, 20, 22

Qn 2, 6, 7 Reg 13, 15, 16

DEADLINE: Term 4 Week 1 First Lesson

Please remember to bring along the following.

1. Direct and Inverse Proportion notes and worksheets

2. Construction Set (Compasses, protractor, pencil, long ruler)

3. Any other outstanding work

See you at 8am.

1. Direct and Inverse Proportion notes and worksheets

2. Construction Set (Compasses, protractor, pencil, long ruler)

3. Any other outstanding work

See you at 8am.

http://www.youtube.com/watch?v=Vxzq68btJ6I&feature=youtu.be

Link to my Viva Voce on youtube.Pause the video at the last few seconds of the video to see my working on question (b) on Scenario 1.(I dont know why I cant import pictures of my working to the video, so I had to video to working.)

Reflections(Submit to Mrs Sin on Hardcopy During Maths remedial on Sept Holidays(Tuesday)

Link to my Viva Voce on youtube.Pause the video at the last few seconds of the video to see my working on question (b) on Scenario 1.(I dont know why I cant import pictures of my working to the video, so I had to video to working.)

Reflections(Submit to Mrs Sin on Hardcopy During Maths remedial on Sept Holidays(Tuesday)

The students mentioned below, please submit your homework asap.

Jamie: Matrices and Simultaneous Equations

Cameron: Matrices and Simultaneous Equations

Marcellus: Matrices and Simultaneous Equations

Sean: Matrices and Simultaneous Equations

Darren: Matrices and Simultaneous Equations

Nicholas: Matrices

Hamidshah: Matrices and Simultaneous Equations

Princeton: Matrices and Simultaneous Equations

Saishwar: Simultaneous Equations

Alvin: Matrices and Simultaneous Equations

Yong Hong: Matrices and Simultaneous Equations

Pravin: Simultaneous Equations

Ragul: Simultaneous Equations

Nathaniel: Simultaneous Equations

Ming Yang: Simultaneous Equations

Jamie: Matrices and Simultaneous Equations

Cameron: Matrices and Simultaneous Equations

Marcellus: Matrices and Simultaneous Equations

Sean: Matrices and Simultaneous Equations

Darren: Matrices and Simultaneous Equations

Nicholas: Matrices

Hamidshah: Matrices and Simultaneous Equations

Princeton: Matrices and Simultaneous Equations

Saishwar: Simultaneous Equations

Alvin: Matrices and Simultaneous Equations

Yong Hong: Matrices and Simultaneous Equations

Pravin: Simultaneous Equations

Ragul: Simultaneous Equations

Nathaniel: Simultaneous Equations

Ming Yang: Simultaneous Equations

Please submit the following assignments tomorrow, Wednesday 29 August 2012.

1. Matrices Assignment 1

2. Matrices Assignment 2

3. Matrices Assignment 3

4. Simultaneous Equations Assignment (Tier A and B)

Thank you.

Name: Liu Guo Jin

Class: S2-08

Scenario: 2

Part A: My Video Presentation

(Submitted)

Part B: My Personal Reflections on this activity

(To be submitted hardcopy to Mrs Sin on Monday)

Class: S2-08

Scenario: 2

Part A: My Video Presentation

(Submitted)

Part B: My Personal Reflections on this activity

(To be submitted hardcopy to Mrs Sin on Monday)

There will be one session of remedial over the September break.

Date: 4 Sept 2012

Time: 8 - 10 am

Venue: Learning Oasis 2

Materials required: Exam Preparation Part 1 & 2, LD

The content covered in the session will not be repeated in class hence you are strongly encouraged to turn up unless you are overseas.

A letter will be issued to your parents soon.

Thank you.

Mrs Sin

Dear all

After scrutinizing the information provided to you on Google Site, please adhere to the submission guidelines as closely as possible. (i.e. post a link on blog/ embed the video on blog) INCLUDING the REFLECTION and script.

However, I will permit you to pass me your video file on a thumb drive only for tomorrow but please come by the staff room during recess so we do not take up curriculum time.

I will only be available in Mr Johari's room in the afternoon after 2.45pm as I have to invigilate some students who missed their level test. I will wait for you until 3pm.

Thank you.

Mrs Sin

After scrutinizing the information provided to you on Google Site, please adhere to the submission guidelines as closely as possible. (i.e. post a link on blog/ embed the video on blog) INCLUDING the REFLECTION and script.

However, I will permit you to pass me your video file on a thumb drive only for tomorrow but please come by the staff room during recess so we do not take up curriculum time.

I will only be available in Mr Johari's room in the afternoon after 2.45pm as I have to invigilate some students who missed their level test. I will wait for you until 3pm.

Thank you.

Mrs Sin

Dear all

The following items are up in the respective places. Do make use of your long weekend wisely.

Indices Practice - See Ace-Learning (Indices Revision Quiz)

Standard Form Revision - Quiz answers have been posted on the Google Site (S208)

Matrices Assignments 1 to 3 - Answers have been posted on Google Site (S208)

Matrices Quiz 3 - Ace-Learning (Only on parts tests for Level Test, including applications)

Please do read ahead on the next section on applications.

Thank you.

Mrs Sin

The following items are up in the respective places. Do make use of your long weekend wisely.

Indices Practice - See Ace-Learning (Indices Revision Quiz)

Standard Form Revision - Quiz answers have been posted on the Google Site (S208)

Matrices Assignments 1 to 3 - Answers have been posted on Google Site (S208)

Matrices Quiz 3 - Ace-Learning (Only on parts tests for Level Test, including applications)

Please do read ahead on the next section on applications.

Thank you.

Mrs Sin

Here are the topics for level test.

Indices, Standard Form, Congruency and Similarity, Trigonometry, Pythagoras' Theorem, Matrices (up to multiplication)

Duration is 60 min.

Calculators are allowed. (approved models only)

Thank you.

Indices, Standard Form, Congruency and Similarity, Trigonometry, Pythagoras' Theorem, Matrices (up to multiplication)

Duration is 60 min.

Calculators are allowed. (approved models only)

Thank you.

Prior to the activity, study the slides on matrices.

In groups of 4 or 5, research on the application of matrices in the real world and put up at least one relevant, good quality resource regarding how matrices are used.

Post (under comments) the link/ file for the resource and do a short summary (5 lines) on the application on the class blog. Be sure to acknowledge the source.

In groups of 4 or 5, research on the application of matrices in the real world and put up at least one relevant, good quality resource regarding how matrices are used.

Post (under comments) the link/ file for the resource and do a short summary (5 lines) on the application on the class blog. Be sure to acknowledge the source.

source: http://faculty.oxy.edu/ron/math/214/Concept%20Map/Matrices.html

source: http://www.glencoe.com/sec/math/prealg/prealg03/study_guide/pdfs/prealg_pssg_G095.pdf

Click on diagrams below and attempt the questions that follows:

Activity 1: Similar solids (click here to start)

Activity 2: Volume and Surface area of Similar solids (click here to start)

Activity 3: Perimeter, Area and Volume: Changes in scale (click here to start)

Please go back to the linoit page that we went through today in class and look at the comments.

Stickies have been marked; blue meaning that it is correct, orange meaning that it is incorrect.

Please correct them.

Due Date: 13 August 2012

Stickies have been marked; blue meaning that it is correct, orange meaning that it is incorrect.

Please correct them.

Due Date: 13 August 2012

Are you creative?
Love problem solving and intrigue by logical thinking problems.
Participate in Covert Footwork Competition below.
To participate complete the form attached.

Video 1 (About the Man)
Video 2 (Proof)
Video 3
So What do you think about Pythagoras?
Post comment about the Man, his contributions or the Pythagoras Theorem

If one shape can become another using Turns, Flips and/or Slides, then the two shapes are called Congruent: |

On-Line Quiz

Please **click here**.

source: http://www.mathsisfun.com/geometry

View the Milky Way at 10 million light years from the Earth. Then move through space towards the Earth in successive orders of magnitude until you reach a tall oak tree just outside the buildings of the National High Magnetic Field Laboratory in Tallahassee, Florida. After that, begin to move from the actual size of a leaf into a microscopic world that reveals leaf cell walls, the cell nucleus, chromatin, DNA and finally, into the subatomic universe of electrons and protons.

sources:

wikipedia

http://www.contracosta.edu

Powers of Ten™ (1977)

Scientific notation is the way that scientists easily handle very large numbers or very small numbers. For example, instead of writing 0.0000000056, we write 5.6 x 10^{-9}.

Click **here **for fundamental concept and worked examples

Watch the following video and review the example on page 25 and 26.

- Trailing zeros or the final zero in a whole number or a decimal place is considered a significant figure.* e.g: 0.0**420**, 0.**4300**, **430** ** **(numbers in red are significant figures) *

- Zeros in some cases can be considered as
**not a significant figure.***e.g: express 34235 as 1 significant figure. The answer will be 30000. Reason behind why we round down is because anything below 5 round it down while any number 5 and above we would round up. (See more in the decimal place section.)*

- If a number is above 5 then we round up the number if the number is 4 an below we round down. *e.g: express 110 to the nearest hundreds and since the 1 at the tens position is below 5 we round it down.*

Please complete the following e-Self Reflection.
The key objective is to assist you in building your competency as wellas mastery of the subject.
Thank you.

·
Identify a right-angled
triangle and its hypotenuse.

·
Define the Pythagoras’
theorem and understand its symbols.

·
Find the unknown side of a
right-angled triangle when the other two sides are given.

· Solve problems involving right-angled triangles with Pythagoras’
theorem.

· Determining whether a triangle is right-angled given the lengths of 3 sides.

Pythagoras (569-500 B.C.E.) was born on the island of Samos in Greece, and did much traveling through Egypt, learning, among other things, mathematics. Not much more is known of his early years. Pythagoras gained his famous status by founding a group, the Brotherhood of Pythagoreans, which was devoted to the study of mathematics. The group was almost cult-like in that it had symbols, rituals and prayers. In addition, Pythagoras believed that "Number rules the universe,"and the Pythagoreans gave numerical values to many objects and ideas. These numerical values, in turn, were endowed with mystical and spiritual qualities.

Pythagoras' theorem states that in any right angled triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.

A right angled triangle has a right angle of** 90°** as one of its interior angles. In the image here the right angle is marked with the white square.

Any triangle like this is a right angled triangle, it doesn't matter which side the right angle is on or what size the triangle is - the rule applies to all of them.

According to some sources the word hypotenuse derives from the Greek words for **hypo** (under) and teinein (stretch) or tenuse (side).

The hypotenuse is the longest side of a right angled triangle. As you can see, the hypotenuse is the side marked in purple on the image above.

Now you know which side the hypotenuse is then this is easy, it's the two other sides marked in orange on the picture above.

Well, understanding the rule means that you can calculate lots of things without having to know the exact exact length of each side?

For example, if you knew that side x was **3** metres and side y was **4** metres long then you would be able to work out the length of the hypotenuse quite easily?

On the image here the hypotenuse is z and the other 2 sides are x and y .

Firstly you need to work out the sum of the squares of both x and y:

X² is 3 x 3 = 9

Y² is 4 x 4 =16

Z² = X² + Y² (25)

The sum of the other 2 sides squared is 25

The length of the hypotenuse therefore is the square root of 25

√25 = 5 ( 5 x 5 = 25)

source:

http://www.geom.uiuc.edu/~demo5337/Group3/hist.html

http://www.ies.co.jp/math/java/geo/pythagoras.html

Click here for information on

.1 What is the general form of a Quadratic Equation

.2 Types of solution. {one, two or no solution}

.3 Quadratic Graphs and nature of roots

Use the following linoit collaborative platform to consolidate your learning and understanding:

Individually post at least 1 Key Learning point and 1 Question.

Elaboration on

.1 Key learning Points

- What have I learnt from the lesson?

- What are my take ways which will be useful for my learning?

- Useful Formulae taught?

.2 Questions?

- something that I would like to know more

- something that I would like to clarify

Individually post at least 1 Key Learning point and 1 Question.

Elaboration on

.1 Key learning Points

- What have I learnt from the lesson?

- What are my take ways which will be useful for my learning?

- Useful Formulae taught?

.2 Questions?

- something that I would like to know more

- something that I would like to clarify

Completing the square is a technique to solve Quadratic Equation.

Key questions to ask when using this technique are:

Key questions to ask when using this technique are:

- What is Completing the Square technique?
- Why do we use Completing the Square?
- When is it used?
- How is the Completing the Square technique applied?

Media and Video

The link is shown as follows:

Worksheet 3 for notes, worked examples and practice questions.

Hi all,

**Remember that learning should take place anywhere and anytime. The key is to work smart. Note that failure to plan is planning for failure.**

First and foremost, I thank you all for being wonderful students. When I was away I came to realise how challenging it must have been to be a student in Singapore and my conference with my colleagues (educators and technologists from all over the world) testi

fy that you are certainly capable of achieving great things (results, character et all). They marvel at your works and would like to have the opportunity to meet you eventually.

As we kick start to e-learning week, be clear of the objectives (refer to e-learning portal) and what it hopes to achieve. Below is just brief info to guide you.

Content

Clear rules: simple, relevant, easy to understand (from content to examples) and engaging (teacher teaching, use of ICT or Maths blog - choice is yours)

Worksheet

The worksheet style must be similar to the one I used in class. Content must contain the introduction, information, examples and some questions (with your own solutions)

for sample worksheet: Please refer to googlesite

Grouping and Task

The style of working is up to the respective team.

You may work independently and then consolidate or meet and discuss or work on-line at the designated time.

To support your learning you may refer to any of these sites.

- ACE Learning
- http://www.ask.com/questions-about/Mensuration-in-Maths
- http://www.cimt.plymouth.ac.uk/projects/mepres/allgcse/bkb7.pdf
- http://www.ascenteducation.com/india-mba/iim/cat/questionbank/mensuration.shtml
- http://www.youtube.com/watch?v=JhHOv3ajuN8
- http://www.excellup.com/ClassEight/matheight/mensurationexone.aspx
- http://www.transum.org/software/sw/starter_of_the_day/Similar.asp?ID_Topic=23

Grouping

The following graph describe the motion of a person.

It is the distance (y-axis) against time (x-axis) graph.

The following graph describe the motion of a person.

It is the distance (y-axis) against time (x-axis) graph.

The following graph describe the motion of a person.

It is the distance (y-axis) against time (x-axis) graph.

What is a Function?

What is the Relationship between x and y ?

Is Function a Relation ?

Resource:

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