In today's lesson (Monday, 1 April 2013), Dr Yeap covered the topic on the different uses of numbers. he introduced ordinal, cardinal, rational, rote, nominal numbers and conventions. That is quite a fair bit of information to internalize. Not that we need to teach the kids per say but it is definitely a good information for us teachers. Dr Yeap also did mention the properties of numbers like the odd, even, prime, perfect and cute numbers. Cute numbers? Really? Is there such a property? So I did my research.
Abstracted from this link: http://mathforum.org/dr.math/faq/faq.number.glossary.html
For example of cute numbers are 4 and 10. The reason is if a square can be cut into n squares of at the most two different sizes, then n is called a cute number.