games, word scrambles, and interactive flashcards make studying vocabulary words fun and can improve retention. Some of this week's sites offer built in vocabulary lists, and others allow you to input your own words. Have fun!
For teens who like kids, babysitting is a perennially popular way to earn money. But before venturing off to take care of other people's children, there are quite a few things to learn and questions to answer.
The Rudiments Of Wisdom encyclopaedia by Tim Hunkin. Thousands of cartoons covering almost everything there is to know!
Although there is more to learn about money than how to count coins and bills, the subject is largely ignored in most middle and high-schools.