From cartalk. Ray: Get a piece of paper and write the number four, leave a little space, and write the number five. What common mathematical symbol, when placed between the numbers four and five, will result in a number that is greater than four but less than six? Tom: It has to be a mathematical […]
From Car Talk. RAY: Here it is. Everyone, almost everyone remembers from his or her days in school the Pythagorean Theorem. TOM: Yes. RAY: A squared, plus B squared, equals C squared. And there are numbers like three, four and five; five, 12, 13 which satisfy that little equation. And many hundreds of years ago […]
From the weekly car talk puzzler: RAY: A farmer had a 40-pound stone which he could use to weigh 40 pounds of feed; he would sell feed in 40 pounds, or bales of hay, or whatever. He had a balance scale; he put the stone on one side and pile the other side with feed […]
I never could remember how to solve these type of questions. RAY: Tommy, Dougie and I are sitting around the office one day at Car Talk Plaza. We were noticing how dingy the place looked. We’d been there 15 years, and the place had never been painted. So, we decided to paint Car Talk Plaza. […]
New puzzler from Cartalk: How do you make 16 ninety-degree angles out of 4 matchsticks? Visit the Cartalk site for the full text and a hint(?).
On the first day of class in AP Calculus and Pre-Calculus Honors I’ll give out the following list of puzzlers that they’ll have a limited amount of time to work on. The students will be working in groups on the new $2 interactive whiteboards. Google Doc link. PDF link. Btw, I still haven’t figured out […]
From Car Talk. A teenage boy smitten with a teenage girl in his high school freshman class, made his feelings known. Overjoyed at finding them reciprocated, he took pen knife to a young hard wood in the vicinity and carved their initials within a heart, five feet up the tree’s trunk. By their senior year, […]