## Wednesday, 27 August 2014

### 27 August 2014 - Group Work: Number Pattern Tasks

Within your group, you are going to be re-organised into 2 "sub-groups":

Each sub-group will be given a problem to solve.

1. Take a photo of your suggested solution - make sure the image is clear & big enough.

2. Take a short video clip - no longer than 2 minutes, post it in Youtube - name it something similar to "S1-02-Group 5 Q4"
• you may use your camera phone or your device's application such as PhotoBooth
3. In your Maths blog, in the same blog post:
• Title of Post: Number Pattern Activity - Group 5 Question 4
• Post a photograph of your suggested solution
• Embed the video clip just below the photo
• Include the name of all the members
On top of that, you've been invited to the G+ Event.

### Number Patterns: Some interesting information

Mathematicians have found ways that enable us to determine numbers in sequences easily.
They derive formulas to suit certain types of number sequences.

For example, the number sequence 5, 7, 9, 11, 13, 15 … is known as an arithmetic progression with common difference of 2.

To find the sum of numbers in a sequence 5, 7, 9, 11, 13, 15 …, we can use the following:

(from wikipediahttp://en.wikipedia.org/wiki/Arithmetic_progression)

On the other hand, if we have another number sequence, 1^2, 2^2, 3^3, .....

we can find the sum of the square numbers using the formula:
(http://www.trans4mind.com/personal_development/mathematics/series/sumNaturalSquares.htm)

## Tuesday, 26 August 2014

### Transformation: From Circle to Cone

Some of you will find the following demonstration useful - to see how a 'circle' is transformed into a 'cone'.
Watch from 1:17 onwards

## Monday, 25 August 2014

### Update: Here's what you say...

This is the consolidated response from 21 students in S1-02 (up to 25 Aug, 12 noon) (with 3 repeated entries), in response to the survey to find out if they know where to find the learning materials.
Q3 & Q4 required submission the specific URLs when looking for specific materials.

In addition, 85.7% are able to provide the URL of the YouTube channel where to could find the lesson video clips and, 85.7% are able to give the correct URL to find the flipped lesson for geometrical construction.

Below are the many  possible different ways that you can ask questions (if unsure of your work).

### Update: Those who responded to the Survey-Quiz

Here's an update, till 12 noon today.
 Submitted by Group Points scored Total number of members TOTAL POINTS Celest Oon 1 7 6 All responded 52 Jerry 1 10 Joshua Chua 1 9 Khoo BoSi 1 7 Low Tjun Lym 1 10 richman kum 1 9 Janice Tan 2 7 6 4 responded 27 Javier Yeo 2 5 Justin Lim 2 7 owen tee 2 8 christopher yong 3 6 5 All responded 37.2 Elgin Ng 3 5 Joel Tio 3 7 Kay Sandy Maung 3 9 Zhu Zhan yan 3 4 Dominic 4 6 6 5 responded 34 Javier liew 4 7 joshua yew 4 7 Wong Kang 4 5 Woon Yoke Xuan 4 9

Group 2:
61.6cm

## Saturday, 23 August 2014

### Investigating: Volume of Cone & Cylinder

The volume of a cone fills up one-third of the volume of cylinder, i.e. we need three cones to fill up a cylinder.

### Investigating: Volume and Surface Area of Sphere

What's the relationship between the volume of a cylinder and a sphere

To examine the total surface area of a sphere

## Tuesday, 19 August 2014

### [T3W8] Support Programme (Group 1)

Geometrical Construction

 5 CHRISTOPHER YONG WEI JIE "T3W8 Support Prog 19 August 2014 (Tues) 2.15 pm to 3.15 pm S1-04 classroom" 12 JUSTIN LIM 16 LOW TJUN LYM 19 NIGEL TAN YEE HERN 20 RICHMAN KUM CHO HOWE
Remember to bring along your construction set.

## Sunday, 17 August 2014

### Geometry with Donald!

The short clip beautifully connects various concepts that we've learnt and will be learning in the next couple of weeks.

Look out for the concepts that you are familiar with (e.g. Golden Ratio)

Enjoy your exploration with Donald Duck!

### [Someone asked....] Solving Algebraic Word Problems

Sometime ago, someone (from another class) asked how to solve the following word problem (from the Textbook).
Here's the step-to-step explanation on how to tackle this question.

• Click at the slides to proceed.
• The working in each slide addresses to a part of the problem (highlighted in red).

## Saturday, 16 August 2014

### Homework on Basic Geometry

Dear S1-02

A gentle reminder that you were given 2 handouts on Thursday.
Do remember to complete the assignments and submit them on coming Monday (18 August 2014).

## Tuesday, 12 August 2014

### Little Red Riding Hood needs help!

Diagram constructed by Dominic

### Where to meet

The location of the houses of three friends, Antonio, Benedict and Celine happened to form an equilateral triangle. They meet quite often to catch up with each other; however, none of them want to invite their friends home. To be fair, they decided to meet at a place that is most 'central' to all.
• What would you suggest?
• How would you do it if you have their houses marked on a map already?

Note: There is a typo-error in the above diagram, it should be "Benedict"

Diagram constructed by Gijoo

## Wednesday, 6 August 2014

Dear S1-02

### Submission of Assignments

Many of you have not submitted the following assignments (in the last 2 weeks).
While these topics would be tested by Thursday (Level Test), you still have to hand it as you would need to demonstrate your understanding and mastery at the end-of-year exam; and you need to know them well when you move on to other levels.

You must hand in these owed assignments by next Tuesday (12 August) by the last period; otherwise, you will have to stay back after school to complete and submit your work.

For those who failed to submit the assignments, you will stay back after school to complete & submit them (12 August; 2 pm to 3.30 pm @ Tutorial Room 1)

## Monday, 4 August 2014

### Alternative Assessment 2: Status of Submission

Up to 4 August 2014, 0030h - the following have already submitted their alternative assessments:

 Janice Tan Sze Hui S1-02 1 Kay Sandy Maung S1-02 2 Oon Chwen Yueh Celest S1-02 3 Woon Yoke Xuan S1-02 4 christopher yong wei jie S1-02 5 Fyodor Lee Jun De S1-02 6 Hong Dominic S1-02 7 Javier Yeo S1-02 8 Joel Tio Jin Hon S1-02 9 Joshua Yew S1-02 11 Justin Lim S1-02 12 Khoo Bo Si S1-02 13 Lew Jiajun S1-02 14 Elgin Ng S1-02 18 nigel tan yee hern S1-02 19 Richman Kum Cho Howe S1-02 20 Owen Tee Hao Wei S1-02 21 Wong Kang S1-02 22

## Sunday, 3 August 2014

### Mock Test Results: 2012 Level Test 4

Are you ready for the upcoming Level Test?
Worked Solution: available from 4 August 2014 (Monday) 3 pm onwards.

## Friday, 1 August 2014

### Maths Consultation (T3W6, in place of Support Programme)

Term 3 Week 6 is the level test week.
This week, the remedial programme would take the form of Consultation Period.

I would be available from 2 pm to 4 pm at the InfoHub (Level 4).
You can come to see me to clarify your doubts if necessary.
Bring along any handouts or questions that you have so that I could narrow down to explain what's needed.

With regards
Ms Loh

### Australian Mathematics Competltion

Please be reminded that the competition will take place on

7 August 2014 (Thursday)
2 pm – 3.15 pm
Auditorium

You are required to report to the above venue at
1.40 pm sharp
Sit according to ascending index number outside and wait for your class to be called.

IMPORTANT:
Click HERE for more read the detailed instructions (e..g scoring system, what's allowed to be used for the paper).

### Revision for Level Test 2

The following papers were given to all in the past 2 lessons, in preparation of the revision.
• S1 Maths Revision for Level Test 2 (Questions by Mr Desmond Peh).pdf
• S1 Maths Revision for Level Test 2 (Questions by Ms Janet Tan).pdf
• S1 Maths Revision for Level Test 2 (SST 2013 Maths Level Test 2).pdf

How would the revision look like next week?
• As mentioned in class, we'll go through
• selected questions of the following papers during class time:
• S1 Maths Revision for Level Test 2 (Questions by Mr Desmond Peh).pdf
• S1 Maths Revision for Level Test 2 (Questions by Ms Janet Tan).pdf
• S1 Maths Revision for Level Test 2 (SST 2013 Maths Level Test 2).pdf
• selected questions from the homework (questions that some of you encountered)
• mock test question paper
• Note that we will not go through the MGS paper ((Optional) 2014 MGS Common Test Sec 2 Maths (Algebra)) which has the solution uploaded last weekend.
• You need not hand in the papers for marking. They are meant for class discussion.
• You should, however, make an attempt to think through (the steps) how you would answer the question because you may not have enough time to complete all the papers.
Remember to bring the papers with you for the lesson discussions next week.

Note that the revision papers would also serve as useful resources for your end-of-year exam preparation, too.