## Posts

Showing posts from April, 2014

### Carnival time...

Photo by Moyan Brenn on Flickr I was browsing this month's edition of Math Teachers at Play carnival yesterday - it's a really great blog carnival. I always find interesting thoughts and ideas there. My own entry was about challenging puzzles . This time I enjoyed reading about decimals in a one-frame and Why I Always Lead with the Punchline ...which was about letting students know what the goals are. and some others as well. Enjoy! :)

### Fantastic math word problems

Here's a weird/funny/fantastic math problem... But it also kind of highlights the word problems we often see in math books - like some have noted, it's only in math classes that trains travel towards each other on the same track, or someone buys 61 watermelons for himself , or people paint houses at identical speeds all day long , etc. All kinds of unrealistic situations. But, being a curriculum author myself, I know it's hard to make problems that would always perfectly relate to real life. In real life things (such as speed) vary a lot and are not constant, and such situations can be totally beyond students' ability to handle mathematically. So we first learn to handle the simple, though unrealistic, situations, such as everything traveling at a constant speed, and then from that, we can advance to calculus and learn the math for the real situation where the speed is changing all the time. That said, of course it's good to relate math to real life whe

### A mathematical fib

Did you know it's Math Awareness Month (MAM)? The website for MAM features a neat calendar which is filled with tricks, magic, and mystery for each day of April. You'll find knots, MÃ¶bius bands, infinity, spirals, tricks, and more :) For example, check out the card trick A Few Little Fibs and how it's based on mathematics: http://www.mathaware.org/mam/2014/calendar/fibs.html Now I'm ready to wow my girls. :)