Golda Velez

This variation on Twenty Questions teaches kids a bit of information theory and lets them take a different approach to powers of 2. First, the kids should be familiar with the regular game of Twenty Questions. Then, ask as an open-ended question: "Suppose instead of the whole world. you

Here is another opportunity for discovery: one-third. For kids who have learned how to divide and get decimals (or show a child briefly who has learned long division and knows what decimals are). Ask simply, what is one-third in decimal? The discovery that 1/3 = .33333333... the repeating decimal, is

For kids who have been introduced to exponents but haven't been taught specifically about what it means to take 'N to the zero power', this is an opportunity for a small 'Aha!' moment. If a child already knows what is ten to the 2

Here is a fun way to introduce kids to the concept of modulus (without ever saying the word): ask, why does a week have 7 days? Suppose you could change it - how many days would you put in the week? Then ask some questions about 'in X days,