Common Knowledge

I strongly belief that it is common knowledge to do warm up before exercise and cooling down after exercises.
Even if you are not athletic or a sports man you already know it right? I believe even primary school kids know it.

But recently I met a 35+ old lady who said it's not common knowledge, it's something only elite athletes know, and this lady said she used to be a school athlete (super star) in basketball, specialized in scoring 3 pointer shots. But she doesn't really have a sportswomen somatotype(Body Shape).

I'm in the reserve navy while she was in the reserve army. Before any exercise, we would do warm up but according to her, they don't do warm up. Army do more physical activities than the navy wor.

After a while, I thought maybe it's generational gap. For example my generation all know how to use email, it's common knowledge while her generation, it's not common knowledge to know how to use the email.

Just like Singapore primary school mathematics for Primary 3. At first I was like "WHAT" but after that, I use rational and figured how to do it. Pretty easy.

Btw: Just in case you still don't know the solution to the first question. Here's the answer:  http://www.razor.tv/site/servlet/segment/main/news/76992.html

Another question was :
Ms Fong bought 12 teacups, 3 teapot and a tray. The price of a teapot is same as 3 teacups. The tray is $15 more than a teapot.
She paid a total of $ 159. How much is the price of 2 teacups and a tray?

Err, just in case you don't know the answer to the 2nd question. (left click after "It's" until the word "Although") It's $45 cause $6 +$6 + (3x $6 +$15)

Although the 2nd question is easy but I feel that it is a bit too high level for primary 3. huhu.

So, yeah, common knowledge changes as time passes. The new generation is in the technology era and is expected to know more. Even the primary school students now know how to operate the Ipad. Therefore we shouldn't insist that the newer generation should lower their level of education. That would be us preventing ourselves from developing. "Just bcoz I dono, so you shouldn't know" type of mentality.

-peace out-