Here’s another Proving Grounds installment! The aim of the following five-question quiz is to work your graphing calculator muscles, so my recommendation is that you try to solve them by graphing even if your first inclination would be to solve them another way. My solutions for this drill will be entirely calculator-based; spend enough time...

It’s been a while since we did one of these! The following five-question quiz (all about a histogram, by special request) will be available to everyone for one week, and then it will only be available to registered Math Guide Owners. (If you don’t have a Math Guide, now is a pretty good time to...

I’m back after a hiatus with another Proving Grounds Quiz. Usual Proving Grounds rules apply: this quiz is open to everyone for a week, but then it’s only open to Math Guide owners. Good luck! *Data source: City of Bridgeport Office of Policy and Management. Accessed 2015-06-14 at http://www.bridgeportct.gov/content/89019/96401/default.aspx...

I’m back with another Proving Grounds quiz. These quizzes are available to everyone for one week, and then they’re only available to Math Guide owners. Want to join the swelling ranks of the PWN Army of Math Guide owners? You can buy the guide directly from me through the PWN store, or grab it on...

Last week was a no-calculator installment of the Proving Grounds—this week it’s all grid-ins! Remember, if you want to access previous Proving Grounds quizzes, or if you want to be able to access this and future ones after they’ve been up for a week, all you have to do is be a Math Guide owner. You...

Another Proving Grounds quiz coming your way. This one you should do without your calculator. Remember, Proving Grounds quizzes are available to everyone for one week, and then only available to Math Guide owners. Not a Math Guide owner yet? Got $20? 🙂...

Time for another Proving Grounds installment, folks. Remember, these quizzes are available for one week for everybody, and then they’re for Math Guide owners only. “How can I get to be a Math Guide owner?” you ask?! Well, either you buy one right from me, or you forward me your receipt from some place like...

Here’s the second installment of the Proving Grounds quizzes, which are available for everyone to try for one week before they become exclusive to Math Guide owners. A little parabola-heavy this week, but then again, who doesn’t love parabolas? Good luck! Mechanical Calculators image By Ezrdr (Own work) [CC BY-SA 3.0], via Wikimedia Commons...

Below is the first in a series of tough quizzes for the new SAT that will be available to everyone for a week, and then only available to Math Guide owners. If you want access to all these quizzes long term, well, you might want to grab a Math Guide. They’re on sale now, and...