Mathematics

Here’s the answer!!

Here’s the answer!!

I promised to provide the answers to the questions in the previous blog. In question a) we need the height of the arch where the bridge , therefore we will substitute the x = 100 into the equation. So, 100metres away from the pylon, the bridge is 84,84 metres high.     For b) you you need to put H(x)[Read More…]

by May 24, 2012 Mathematics
Balancing our way in algebra… and geometry!

Balancing our way in algebra… and geometry!

Balancing sounds like fun! The last two weeks we have learned how to solve problems by forming and balancing special number sentences called equations.We solved equations with or without brackets We have been looking at solving equations by inspection and by balancing the two sides. A GOLDEN RULE:When solving a problem… always read it through once or twice, to make[Read More…]

by May 17, 2012 Mathematics
Calculus!!

Calculus!!

“Calculus is probably one of the greatest creations of human thought.  It has become a powerful tool for solving important problems in the world of mathematics and science.”  [Mathematics text and work book: Mind action series page 208] Calculus was invented in the seventeenth century by the great mathematicians Newton, Leibniz and Cauchy as a means of investigating problems that[Read More…]

by May 10, 2012 Mathematics

MATHS IS COOL ..SCIENCE IS GREAT…

Okay..now listen .Nobody gets in here without answering the following question: ‘A train leaves Philadelphia at 1:00pm.  It’s travelling at 65 kilometres per hour.  Another train leaves Denver at 4:00… Say, you need some paper?’ Math phobic’s nightmare!

by May 4, 2012 Mathematics
It goes round and round!!

It goes round and round!!

Yes, we are talking CIRCLES!  Not in circles, but about circles. According to the Oxford dictionary: “a perfectly round plane figure, line enclosing it; roundish enclosure, ring …” In Mathematics we are interested in the circumference, radius, midpoint and area.  To be able to calculate most of these, we need the radius. In grade 12 we take it a step[Read More…]

by April 26, 2012 Mathematics
What will it be?

What will it be?

Analytical or Coordinate Geometry?  It does not matter which name you give it!  It deals with the study of geometry using the Cartesian Number Plane and is an algebraic approach to the study of geometry.  Analytical, or if you prefer, Coordinate Geometry “is widely used in physics and engineering, and is the foundation of most modern fields of geometry including[Read More…]

by April 11, 2012 Mathematics
It is so EASY!!

It is so EASY!!

I got the letter in the post inviting me to take out a loan for R100 000.  It seems to be so  easy, you just dial 0861 ……., listen for 20 minutes and within 48 hours you can start spending! BUT if you are a Grade 12 Mathematics learner, you should think twice!!  Nothing comes cheap.  If you take the[Read More…]

by March 15, 2012 Mathematics
‘Khan’ we do our Mathematics?

‘Khan’ we do our Mathematics?

Mathematics can be a very challenging subject for many students. Fear not, help is here, in the form of many websites that not only offer written explanations, but often offer revision work as well. Here are some links to some of my favourite ones: The Khan Academy www.khanacademy.org The Khan Academy is a non-profit educational organization, created in 2006 by[Read More…]

by March 8, 2012 Mathematics
Yes, you can study Maths!

Yes, you can study Maths!

You will need: a. Your textbook b. Your class workbook c.  Lots of paper d.  Pens, pencils, highlighters Simply revisit the examples and explanations offered for each new area of focus.  Work through the exercises which are made available at the end of each section.  Reference your class workbook to check and correct the methods or formula you have used[Read More…]

by March 7, 2012 Mathematics