Thursday, May 27, 2010

Mathematics Essay Writing Competition

To all SST Pioneers


Please check out the Main Page of the Google Login for the Essay Competition organised by the Singapore Mathematics Society.

You may participate as an individual or as a team of no more than 3.
As there is a limit to the number of entries to the competition per school, you will have to register through the school.

Saturday, May 8, 2010

Rate Ratio Proportion (What's cooking this week?)

Cooking for a Party

SST is organising a class party and has entrusted your group to plan, purchase and eventually present the dish.

    The task:
    • Click on 'find a recipe' or to Martha Steward Recipe Finder select one recipe that is suitable for the party. You will be cooking a large meal for a party and so will need to change the quantities of the ingredients accordingly. Increase quantities using direct proportion and write a new shopping list.
    • All the measurement must be in metric unit (i.e. cm instead of inch)
    • The final product:
    • An A4 size recipe with cooking direction using Pages.
    • include the name and a picture, if possible, of your final dish
    • estimated amount of calories
    • include a brief writeup why your dish is the best.
    • email your 1-page recipe to your Maths teacher with file name classyourname.pages

    Resource: how to make caramel popcorn and recipe

    Friday, May 7, 2010

    Rate Ratio Proportion (Resources & Games)

    Click on the following links for simple activities to reinforce your understanding

    Chap 9: Rate, Ratio and Proportion

    Self Directed Learning (week 9)
    2 tasks attached to be completed

    Task 1: Self Directed practice

    Go through the link and answer the following questions:

    • What is/ the key difference/s between ratio and proportion?
    • What are the rules you have to observe in ratio and proportion?
    Go through the following activities
    [the critical activities are identified with *]
    factsheet include the following:
    1. What is ratio? 2. Understanding direct proportion? 3. Using Direct Proportion
    4. Simplifying ratios? 5. Tips for ratio and proportion sums 6. Key words

    simple game to practice ratio:

    worksheet 2, 3 & 5 compulsory (*)

    Self directed quiz with 3 different level of difficulties (*)

    Task 2 : [to be submitted]
    before completing the assignment review what you have covered in this chapter

    1-02 & 1-05 : use your exercise books
    1-08 & 1-09 : use fool scap papers
    [akan datang]


    towards being a life-long learner

    This term we have identified Week 9 for self-directed learning week. This means that you set your own time and target to learn, practice and review the topics that have been identified for you. The fundamental has been covered in primary school so this is merely an extension of the skills and knowledge.
    • Chapter 9.2: Average Speed
    • Chapter 9.3: Speed
    You are expected to complete sub-topic by 15 May 2010. A simple Pop-Quiz will be given to check on your understanding.
    Resource: from text book, ACE-learning portal.

    Another important resource: Please feel to clarify your doubts with Mr Johari.

    Chap 16 Data Handling: Histograms - How does it look like?

    Key questions:
    1. What is a Histogram?
    2. How different is it from a Bar Chart?
    click here to find your answers.

    1. What is a Histogram?

    Frequency Table and Histogram


    2. How different is it from a Bar Chart?
    click here to find your answers.
    source: courtesy of Ms Loh KY

    Wednesday, May 5, 2010

    STATISTICS (ANALYSIS) : mean, mode & median

    The Next Phase in Statistics is Data Analysis. In this segment we will be focusing on the following:
    .1 Averages
    .2 Histogram
    .3 Other forms of presentation (Dot Diagram, Stem and Leaf)

    Follow through the following series of tasks
    .1 Averages
    'Before you can begin to understand statistics, there are four terms you will need to fully understand. The first term 'average' is something we have been familiar with from a
    very early age when we start analyzing our marks on report cards. We add together all of our test results and then divide it by the sum of the total number of marks there are. We often call it the average. However, statistically it's the Mean!' [source:]

    Your task:
    1. Define the following statistical terms: Mean, Mode and Median
    2. You may refer to the following link for assistance [click here]
    3. Provide an example on each of the terms
    4. When do we use mean, mode or median?
    .2 Frequency Table and Histogram

    Identify the characteristics of a Histogram.
    What is/are the primary difference/s between Histogram and Bar Chart?

    Your Task
    Do a simple survey in class and complete the following tasks
    Complete a Frequency Table
    • Use Numbers and Plot a Histogram (label the axes and provide a suitable Title)
    • Find the (a) mean, (b) mode and (c) median
    • Which of the above averages ie. mean, mode or median you think best represents your findings about your survey? Why?

    Group 1: Birth months of all your classmates
    Group 2: Home location of all your classmates (North, South, East, West)
    Group 3: Number of siblings of individual student
    Group 4: Types of CCA
    Group 5: Favourite genre of movies: Horror, Comedy, Thriller, etc etc

    Other types of Representation

    Task completed
    the following is the work completed by the various groups:

    Data is based on class Birthdates
    The mean =
    The mode =
    The median =

    Monday, May 3, 2010

    Practice Questions (compulsory)

    Dear all,
    As Mr Chua has rightly pointed out, learning should be an on-going process and should not be just for the sake of tests or examination. One of SST's goals is to develop 'life-long learners' hence it is imperative to begin with the right mindset and attitude. I have identified the following questions from the chapters covered in Term 2 for compulsory practice.

    Please detached the questions or copy the questions from the workbook for easy personal reference later on. Complete working to be shown and please use foolscap papers.

    Discovering Mathematics workbook
    Chapter 4: Introduction to Algebra
    Basic Practice:
    Q2, Q4
    Further Practice
    Q12, Q13, Q19
    Challenging Practice
    Q23, Q24

    Chapter 16: Data Handling
    Basic Practice
    Q2, Q6, Q7
    Further Practice
    Q13, Q16, Q17, Q20
    Challenging Practice
    Q22, Q24

    Will be covering this soon but you may try first
    Chapter 5: Algebraic Manipulation
    Basic Practice
    Q1, Q2, Q4

    All the best - feel free to ask me for any clarification.