One thing I enjoy the most about living in Fairbanks is the summers. The temperatures tend to stay between 65 and 75, and sunny. All day. That’s not just the normal hours of the daytime, but 24/7. One of the year’s most important holidays is the Summer Solstice. We celibate…

Everyone knows how to find a mean value: we add up the numbers and divide by the number of numbers. While not difficult, that’s not the most efficient way to calculate means, and it makes them difficult to do in your head. I prefer what I call the plate stacking…

Math Anxiety is a problem that many people face, and whether you are looking for a way around it yourself or you’re teaching someone who’s suffering from math anxiety, my approach may help you. I teach remedial math for the Army. While many may think that means I deal with…

I was working with some students, teaching them how to divide any number by 2, when a student asked if the method works with all numbers. I started to say no, but then thought about it. It turns out the steps are the same as long division, but with A…

The basis of many simplifications. When I first was shown A(B+C) = AB + AC (the distributive property) , I was like “OK, that’s obvious. Why are they bothering to show us this? What use is it?” I thought it was yet more of the useless bits of information taught…

If life begins at conception, so should child support. Why should we take perjury seriously when the Supreme Court Justices can lie under oath and not be punished? Why should we respect the Supreme Court when it contains documented liars who don’t respect the law? 18 years after Roe was…

It’s difficult to subtract using borrowing in your head. Here’s what I do instead. I suck at doing introductions almost as much as I do borrowing, so instead I’m just going to get into the meat of the matter. Subtracting from large round numbers To subtract from large round numbers…

I am a YouTube influencer. Perhaps you’ve heard of me. I’m Dr Karen from Dr. Karen’s Math Hacks. I have literally DOZENS of subscribers, some of which are even people who aren’t my immediate friends or family! People have actually told me that my videos, get this, “actually make sense”…

A resource for people who have trouble with math (a.k.a a blatant plug for my YouTube channel). First let me say that I make no money from this channel. (To make money on YouTube you need hundreds of thousands of subscribers and sponsors.) My experience is that people who are…