Double or Single?

http://dollarsandsense.sg/why-you-should-never-buy-a-double-filet-o-fish-burger-in-singapore/

Fraction Humour

World's Fastest Man....

ever wonder what's his speed in m/s or km/h?

The world's longest waterslide!

to get a successful landing, the stuntman must consider his initial gravitational potential energy. How much that gravitational potential energy will convert to kinetic energy after consideration of energy required to overcome frictional force as well as his launch speed. (Recall that kinetic energy is dependent on speed of moving object).

Also the distance from edge of slide to his target and time he will remain airborne.

A wrong calculation will result in a tragedy. But the right one will result in pure awesomeness :)

So this is ONE reason why the topic of Distance, Speed, Time is very important :)

Region Method, Outlining & Cut-and-Paste Method

another excellent work by Jun Yung.
Keep it up!

External Change vs X-Box + B4After + Clone combo

by Eugenia

systematic working, neat, models drawn in pencil..... reminds me of myself when I was in P6 :)

Randy - X-Box Method

Randy using the X-Box technique to solve;-
scoring 35/40 and achieving a top score for Maths Mock Paper 1.
Congratulations!

LeeXuen - X-Box Method (Finding Common + Eliminating)

Eugenia Foo - X-Box Method (Finding Common + Eliminating)

Perfect!

Pattern-in-a-Pattern @ Sec 1

hope you've been paying attention in class or else you'd have to list all the 50 terms :)

Formula for finding Pattern-Within-A-Pattern

This is the simpler version of finding the formula for Pattern-Within-A-Pattern.
The tougher way (the one I know and used to) is by using quadratic equation.


Generally, a pattern within a pattern has an

where n represents the nth-term
The 1st term of the polynomial will be equal to the common difference divided by the factorial of the polynomial's degree.

In the example above, the common difference was 2 and the degree was 2, so the leading coefficient is 2/2! = 2/2 = 1

References
http://www.purplemath.com/modules/nextnumb.htm

A Movie About Number Patterns....

..... although the ending is pretty lame in my opinion especially when some pacifistic shrieking albino-like aliens are involved (ooops! Did I just reveal some spoilers?)

Moral of the story?
When the Art teacher says draw a picture, you better draw and not scribble numbers on the art paper lest you'd turn some reclusive professor in the future into a paranoid lunatic with premonitions of the end of the world :P

Even Pi Has a Song :)

...but was voted one of the most annoying songs on youTube. Ha!

Visualising Net

From 3D to 2D
http://www.mathsnet.net/geometry/solid/nets.html

11 possible Nets of a cube
http://www.maths-resources.net/ks3/nets/netsofacube.pdf

Nets of Platonic Solids
http://www.maths-resources.net/ks3/nets/platonicsolidsnets.pdf

Can You Make Cubes from these?
http://www.primaryresources.co.uk/maths/pdfs/cubenets.pdf

Simple Worksheet on Nets
click here

Riding at 300km/h - Don't Try This At Home

How fast is 300km/h? Check this out.

Exemplary Work by WeiHeng

:: Comments ::
- approach to solving is clear and systematic.

Exemplary Work by JiaYi

The high quality work speaks for itself.

::Strengths::

- clear statement-working and method
- no omission of units
- very systematic approach

Well done Jia Yi!

Why We Should Appreciate Maths

The Volume Song!

"length times width times height ..... gives you the volume"

Percentage Humour