Archive for April, 2008
Monday, April 28th, 2008
Learning? Yes, a simple word, but the implication is far-reaching than the word itself.
Before we start learning anything useful, we need to question ourselves over its purpose.
If the answer to it is sufficient enough for you to strike on, you are in the correct path to a better future.
However, what is ...
Posted in Learning Maths | No Comments »
Friday, April 25th, 2008
Making mistakes during maths learning is a common step to mastery of its concept.
This is possible, provided the learners pick up the error made and understand them through detailed analysis.
I came across an error that puzzled me for quite some time.
The error made: Inverting y = 2x + (1/x) became ...
Posted in Teaching Maths, Learning Maths | 1 Comment »
Thursday, April 24th, 2008
Speed has two definitions:
Linear
Angular
Linear speed is defined as the distance travelled for a given time.
Angular speed is defined as the angle covered for a given time.
Are they proportional ?
Or are they related in any sense?
Let us take 2 pendulums hung on a slim rotating rod for analysis.
If the 2 pendulums (A and ...
Posted in Speed Velocity | 1 Comment »
Monday, April 21st, 2008
Estimation in maths is not just about rounding up or down numbers.
It called for logically thinking and is done on a case-by-case basis.
Take for example, 302 x 11.
What is the estimated product of the 2 numbers?
We can choose for it to be 300 x 10, which gives 3000.
But how about ...
Posted in Number | No Comments »
Saturday, April 19th, 2008
Using geometry, we can determine the volume and surface area of any object.
However, have you wondered what is the relationship between them?
If we want to maintain the volume of an box but reduce its surface area, is it possible?
Or does the volume ALWAYS increases with increase in its surface area?
How ...
Posted in Geometry | 3 Comments »
Wednesday, April 16th, 2008
Math equations are interesting. They are more so when used in algebra for checking of understanding.
Many weird answers can come out when done wrongly.
Look at an example of changing numerator to denominator of terms in an equation.
Example: Express y in terms of x for the equation (1 / y) = 5 ...
Posted in Algebra | 1 Comment »
