# ‘City of Zombies': You Need Brains to Survive

Hold off the zombies using mental arithmetic. ‘City of Zombies’ is a fun, intuitive game that teaches math along the way. Continue reading

# Do You Want Your Daughter to Excel at Math and Science? Get a Little Help From GEMS

GEMS was started to address the well documented but underserved problem of girls not taking high-level math and science classes in high school, thereby limiting their college and career options. It has evolved over the years into a full-focus STEM program, addressing the dearth of female engineers and computer scientists, in addition to the workforce problem of low numbers of female workers in these fields. Continue reading

# GeekDad Puzzle of the Week – Capacitor Combinatorics

How many distinct capacitance values can you configure with 10 identical 60µF capacitors? Continue reading

# Have Geeklets, Will Travel: Museum of Mathematics

If you’re lucky enough to be in New York, you can visit the museum itself and play with numbers. Hands-on exhibits teach concepts such as fractions, dimensionality, and geometry, making math interesting for everyone from kindergarteners to adults alike. If you don’t live in New York, you still have a chance to try out many of the math games as they crisscross the country in a traveling exhibit called Math Midway. We were fortunate that it came to our local science center prior to the opening of the museum, and the kids loved walking the maze (never making a left turn!), playing with the harmonograph, and trying to figure out the organ function grinder. Continue reading

# Play With Science With PhET

The University of Colorado, Boulder, has put together a fantastic website called PhET. It’s full of interactive simulations for all branches of science, and for math. The simulations run from the very basic for elementary school students, all the way up to university-level material. Continue reading

# GeekDad Puzzle of the Week Solution – Consecutive Collatz Conjecture Counts

Did you correctly identify the longest Collatz length run under under 10 million? Is this week’s \$50 ThinkGeek Gift Certificate coming your way? Continue reading

# GeekDad Puzzle of the Week – Consecutive Collatz Conjecture Counts

What number under 10^7 starts the largest “run” of consecutive Collatz Conjecture step counts? The answer could be worth a \$50 ThinkGeek Gift Certificate! Continue reading

# Zooreka and the Odds of Winning

I thought about that this week when I made a bet with the twins as we played Zooreka. If either of them won, they could both stay up 15 minutes later that night. If I won, they would go to bed five minutes earlier. The odds were in their favor as there were two of them and only one of me, but they still agonized over whether to accept the bet. Simple math, I explained to them: they could win more than they could ever lose. Continue reading

# Because a Geek Has to Do it: Calculating the Dimensions of a New TV

The bulb in our 10 year-old DLP rear-projection TV burnt out for the second time in its lifespan earlier this week. The last time I had to replace it, my journey to secure a bulb ended in haggling with the rather unsavory proprietor of a strip-mall TV repair outlet. As a family, we decided it was time to put the old gray mare out to pasture, and give ourselves a little upgrade. Continue reading

# How to Defeat a Dragon With Math

Ted Ed puts out this wonderfully fun video, starring GeekDad Garth Sundem, telling the story of how the Musketeers of Pi defeat a dragon using the order of operations. Continue reading

# 4 (Geeky) Fun Facts About 2013 to Dazzle Your Friends With Tonight

Here are four facts about 2013 that you can memorize and use tonight to impress the friends, family, acquaintances, and/or possibly complete strangers with whom you’re planning to ring in the new year. Continue reading

# NASA Johnson Style (Gangnam Style Parody)

I’ve seen a lot of cool things come out of NASA as they try to appeal to the next generation of scientists and engineers, but this is one of the best yet.

# Numbers League Dinosaurs and Critters: Kickstarting an Expansion

The folks at BentCastle Workshops made the game Numbers League a few years ago. (You can read my review here at GeekDad.) They even made it into an app, making it more portable than ever. Continue reading

# Danica McKellar’s Girls Get Curves Makes Geometry Relevant

Ever since Danica McKellar, the actor (best known for playing Winnie in The Wonder Years) and UCLA-trained mathematician, began her New York Times-bestselling series of math books for girls in 2007, I’ve been curious to see what’s going on that’s … Continue reading

# GeekDad Puzzle of the Week: Gear Up

I hope this is a fairly kid-friendly, hands-on challenge — perhaps even with the opportunity for a teachable moment or two. That said, if you don’t happen to have Lego gears lying around the house, feel free to illustrate, animate, … Continue reading

# Making Math Less Scary With Infographics

My kids have a strange aversion to numbers. Recently we’ve been using the trend of infographics to help them get their head around large numbers and make them less scary. By transforming those strings of digits into picture form they … Continue reading

# GeekDad Community Discussion: Is Algebra Necessary?

The New York Times recently ran an opinion piece entitled Is Algebra Necessary? It questions whether schools focus too much on trying to teach a subject that causes many students to drop out of school entirely, with some schools seeing … Continue reading

The berry bushes down the block are heavy with red, ripe raspberries. And so I believe it is my family’s duty to relieve the bushes of some of their burden, lest the weighty berries do long term damage to the … Continue reading

The solution to the past week’s GeekDad Puzzle of the Week. Continue reading

# GeekDad Puzzle of the Week: Potato Hamster at Large

Potato Hamster is at large. On Sunday morning, GeekDad Day, we found the top exercise wheel portion of her cage on the floor, leaving a hole, and the hamster was nowhere to be found. The folks at the pet store … Continue reading

# DragonBox: Algebra Beats Angry Birds

What if I were to tell you that Angry Birds had been surpassed in the App Store—by a game that involves solving algebra equations? Because that’s what DragonBox did. Do I have your attention now? Continue reading

# Fractal Broccoli for the Gardening Geek

Yes, math really is everywhere. Having just spent the last few hours of daylight preparing containers for our eventual heirloom tomato harvest (Black Krims, Brandywines, Pears, and Baby Brandywines) I happened to swing by Etsy to check out their home … Continue reading

# Middle-Aged Math Prodigy? Never Say Never

The story was pretty much as I remembered it. A seemingly ordinary 10-year-old boy of humble origins blows away the ogre-like village schoolmaster with his ability to add up a series of one hundred numbers in his head. Feeling pretty … Continue reading