Today is “National Cut Your Energy Costs” Day, the day when we think about using less electricity in our homes, gasoline in our cars, and other forms of energy. Do you know what things in your house use the most energy? Read on to find out and celebrate the day by doing energy-saving math!
When you wear a wool sweater, have you ever stopped to wonder what animal was wearing it before you? How about how many sweaters that animal could make? Read on to do the sweater sums!
If you’ve ever seen those weird charts of letters like the one here, you know that they don’t spell out words. But what exactly do those odd jumble of letters do? Read on to find out – and see the math in sight!
A lot happens in one year. But just how much happens in one second? How far does the Earth travel? How many babies are born? How many stars are born? Read on to find out – and learn just how much every second counts!
Tonight is New Year’s Eve, when people everywhere ring in the new year. But 2015 doesn’t begin at the same time for everyone! Read on to do the time zone math and see who gets to celebrate the new year first!
They say yawning is contagious from person to person: you see one person yawning, and that makes you need to yawn. But does your yawning make your dog sleepy? Read on to see how the numbers can add up quickly – and try not to yawn!
Ever wonder how many airplanes are flying above you and just how they know where to go when they land and takeoff? Read on to discover the high-flying math in directing airplane traffic!
Today is the winter solstice, when the southern half of Earth is tilted towards the sun and the top half, the north, is tilted away. For northern places, it’s the coldest season. In fact, at the North Pole they’re getting no sun at all, day or night! The good news is, starting tomorrow each day will have more daylight than the one before. Read on to see how the hours of daylight really add up!
When you make a phone call these days, you don’t even have to remember anyone’s number. But it wasn’t always like that – you used to really have to work for that call with a rotary phone! Read on to find out more about these old-time phones, and dial up the fun rotary-phone math!
Sitting in traffic got Bedtime Math fan Cecilia H. thinking: how many cars could you line up end to end from Los Angeles to New York? Read on to find out, and speed through the math in bumper-to-bumper cars!