Just One Dice

Today I gave Rocket Boy this problem from the big book of puzzles. On a six-sided dice, the two opposite sides are marked in such a way that the sum of their numbers (or dots) adds up to 7. Given a picture of a dice with three sides visible, figure out what should appear on… Read More Just One Dice

Lotsa Snowflakes

I was going to do a class for 6-10 year olds today. The plan was to explore symmetry with snowflakes. But nobody signed up and the class got cancelled. Which meant a luxuriously slow Saturday morning spent with the Rocket Boy, his best friend A, A’s little brother, and their mom… cutting snowflakes. The boys… Read More Lotsa Snowflakes

Transformers – the Math Camp

Every morning this week the Rocket Boy spent an hour online in the Natural Math‘s online summer camp. We love just about everything that comes from Natural Math (yep, that includes the Moebius Noodles book I co-authored some years back and the new one, Avoid Hard Work, that’s coming out in the Fall). But up… Read More Transformers – the Math Camp

Chickens, chickens everywhere

After something like 5 years of planning and 2 years of building the coup, we finally got chickens! They were born on March 21st and we picked them up on March 25. So right now they are just about 3 weeks old. Really? Something must be wrong with my math… or my calendar. Then again,… Read More Chickens, chickens everywhere

Math on a Chess Board

M. C. Escher Sometimes, when we have friends over, Rocket Boy gets out his chess board and his favorite chess set for a friendly game. But the kids don’t always end up playing chess. Instead, they build other, pretty elaborate, games on and around the board. For example, once they played “tea-time in the chess… Read More Math on a Chess Board

Weekend in Atlanta

Last year was the year without travel for us (for health reasons). It sucked! So this year we decided not to wait until spring-summer and start our travel season ASAP. Our first trip was going to be to… well, at first we thought of Atlanta. But then changed it to Knoxville, TN. And then back to… Read More Weekend in Atlanta