A man named Phillip Fisher once said,

""The stock market is filled with individuals who know the price of everything, but the value of nothing."
- Phillip Fisher

Phillip Fisher wrote a famous book about investing called "Common Stocks and Uncommon Profits". You can learn more about him in this Wikipedia article:

http://en.wikipedia.org/wiki/Philip_Arthur_Fisher

What I thought was interesting in this article is the list of "15 Points to Look for In A Common Stock"

If you're looking for educational activities for your investment club meetings, it might be a good learning exercise to try answering the 15 questions for a company you own. The more you know about your companies, the better investing decisions you'll make. You really don't know much just by looking at the stock price and the headlines.