Thursday, January 28, 2010

Mathematics Performance Task 1

This performance task is a graded exercise that will be added to your CA.
This is a real-life application of Mathematics using mathematical concepts that you are familiar with.
The focus will be the
  • accuracy of your mathematical analysis,
  • elegance of your solution and
  • clarity and creativity in your presentation.
Part 1: go to your maths google site for the performance task

Monday, January 25, 2010

Class task : Factors & Multiples

Please use your learning device to source for information on the following:

  1. A man named Erastothenes
  2. Erastothenes Sieve
  3. All the Primes less than 1000

Prime Quiz (PART 1) for all as hw

Sunday, January 24, 2010

A mathematical story

The hue and cry of The Dot and the Line: A Romance in Lower Mathematics
View how simple mathematical concepts are embedded in this video production. Notice the use of mathematics in media and story telling. Enjoy

identify the geometrical characteristics of a dot and a line..

Saturday, January 23, 2010

Review of Mathematics Assessment

I have reviewed the assessment given in week2/3 and have found the following:
  • It was generally well done and I am particularly impressed by the mathematical presentation from some of you.
  • There is a need to relook at the way some of the mathematical symbols were used in your working especially with the use of --->
  • While some students are familiar with algebra, I noticed some students are not comfortable to use algebra in problem solving

Please keep up the great work.
Mr Jo

Thursday, January 21, 2010

Task 1: followup from Locker Exercise

Dear wonderful 109ians,

Thank you for your comments on the Locker question. It is certainly an introductory lesson on our first chapter on HCF and LCM.
Your follow up task is to find as much information on the subtopic below:
  1. Composite Numbers
  2. Prime factorisation
  3. Index Form
Please give your findings using any of the following platforms:
  • simple comments (to this blog entry)
  • use reference from your Maths e-textbook or any other reliable Maths books
  • include reliable you-tube on this topics (pls quote source)
  • maths dictionary
  • sample examples from reliable resources to illustrate your understanding of subtopics
It is important that
you collaborate as a class to reinforce or correct one another
support your friends with examples etc.

deadline: week 4

Wednesday, January 20, 2010

Mathematical Dictionary

I have attached a mathematical dictionary for your use and reference.
Quiz time:
Find the definitions of the following terms with examples (first one to post and got them correct stand to win a mathematical prize)
  1. Prime number
  2. Natural number
  3. Rational Number
  4. Vulgar Fraction
  5. Indices

Monday, January 18, 2010

The Locker Issue in SST

An impending headache to the administrator in planning the locker operation in SST. He seeks your advise on how to resolve this issue:

Here is the problem:

Task: In aSST, there is a row of 100 closed lockers numbered 1 to 100. A student goes through the row and opens every locker. A second student goes through the row and for every second locker if it is closed, she opens it and if it is opened, she closes it. A third student does the same thing for every third, a fourth for every fourth locker and so on, all the way to the 100th locker. The goal of the problem is to determine which lockers will be open at the end of the process.

Sample Questions:

In words, explain your thinking to the following problems clearly. Be sure to use appropriate mathematical language and methods:

Which lockers remain open after the 100th student has passed?

If there were 500 students and lockers, which lockers remain opened after the 500th student has passed?

Further Activity:

Identify another problem that uses the same method or technique to solve and post it to this blog

Monday, January 11, 2010

History of Numbers

'A number is a mathematical object used in counting and measuring. A notational symbol which represents a number is called a numeral, but in common usage the word number is used for both the abstract object and the symbol, as well as for the word for the number. In addition to their use in counting and measuring, numerals are often used for labels (telephone numbers), for ordering (serial numbers), and for codes (ISBNs). In mathematics, the definition of number has been extended over the years to include such numbers as 0, negative numbers, rational numbers, irrational numbers, and complex numbers.' wikipedia
Another interesting factor to note is that numbers is a form of a universal language and appears in every civilization.
Task 1: View the following video to have a better perspective of maths
history of Maths
Identify 3 points that you have discovered from the video.

Task 2: Number System through the years
Identify a civilization and do a brief presentation of not more than 1 minute on the number system of the chosen civilization. You may identify, if any, a key pattern of the number system of that civilization with our present number system. You may choose any more of on-line presentation and upload to this site.
references for consideration:

Our Key Success in Mathematics - Maths Policy

1-09 Maths Class Learning Policy from the following perspectives:
  • Educator
  • Learner
  • Learning Environment

Class Policy (as discussed and agreed by Mr Johari and 109)
  1. As learners, we must be energetic but not over energetic and have a good learning attitude during class (be optimistic).
  2. We must also be focused and hand in homework on-time.
  3. We have to be attentive at all times
  4. During lesson, we should ask relevant questions as involvement is a must.
  5. We must be humble in order to learn better.
  6. We respect the teacher by not using vulgarities/bad words.
  7. We ought to close our macbooks on when teacher is talking.
  8. We must keep quiet when the teacher is teaching
  9. Hand in homework on time

  1. Must make the lesson interesting
  2. Respect the students
  3. Must not be Biased
  4. Makes lessons interesting
  5. Give time for students to prepare for lessons
  6. No excessive homework
  7. Help students when they are in need
  8. Must be clear
  9. No surprise test
  1. No droppings (as in littering)
  2. Clean the whiteboard
  3. Mute the MacBook (so as to not distract others)
  4. Don’t just study in school, also study at home (learning should be everywhere and everytime)
  5. Switch off appliances when not in use (e.g. air-con)

All rules must be adhered to at all times (during class)