‘Daily Math’

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Lucky Number 2013

January 11, 2013 4:00 pm


First, a really fun announcement: Bedtime Math is throwing a giant Pajama Party at the new Museum of Mathematics in New York!  If you live in the NYC area or will be visiting, on Saturday Feb. 2 kids from ages 3-8 can come to MoMath in their PJs and play home-baked Bedtime Math games.  You all get first dibs before this gets announced publicly, so click here to get the details and register!

And as long as we’re talking about math, it’s a great time to ponder the number 2013, our very cool new year.  It’s the first year in a long time where all four digits are different – more on that below. Also, because the number 13 is prime – meaning it’s divisible only by itself and 1, and can’t be split into equal-sized groups – 2013 looks kind of yucky and prime also, but it actually isn’t.  While the number 13 is considered unlucky by a lot of people, we’re thinking 2013 is going to be a good year.


January 3, 2013 4:00 pm


As people in Alaska like to say, “If Texas doesn’t quit saying they’re the biggest state, we might just cut ourselves in half and make them third biggest.”  Alaska may be the baby of the American family – it became the 49th state out of 50 on this day in 1959 – but it is by far the largest.  There are only 18 countries bigger than Alaska, and it’s also bigger than the 22 smallest U.S. states combined.  Thanks to having all that space, Alaska has lots of room for huge mountains, beautiful glaciers, and lots of cool animals, including 200,000 of the state animal, the moose.  By comparison, there are only about 730,000 people – not surprising for a state with a record low temperature of negative 80 degrees.  At the least, everyone has lots of space.

Double – or Triple – the Fun

January 2, 2013 4:00 pm


Yesterday at Alexandra Palace in London, a guy named Phil “The Power” Taylor won the world professional dart championship for the 16th time.  Whoa!  And throwing darts is no easy sport: you aren’t just aiming for the middle of the dartboard the whole time.  As you see in this picture, each wedge of the board has a number, which equals the points you score if you throw your dart there – except for the skinny green and red rings, which double or triple those points.  Even the bullseye has multiple parts: its outer ring is worth 25 points, but the very center is worth double that (50).  To make matters worse, to win the championship you have to score exactly 501 points, and your final throw has to land on the double ring or the double bulls-eye.  So darts aren’t just a matter of good aim – you have to do the math right, too.

It’s a Zoo Out There

July 19, 2012 3:00 pm


July may be National Ice Cream Month, but this week is National Zoo Keeper Week.  What a great job: you get to hang out at the zoo every day, pet all those furry animals, and feed them without even having to stand in line.  Of course, the job also has its dangers, like possibly losing your hand when you try to feed the sharks.  If you imagine a typical day for a zookeeper, you see that the excitement could add up fast.