A special “thank you” goes to this post source (link at end of post). Matthew Watkins contacted me out of the blue a while ago, offering me a review copy of his new book, “The Mystery of the Prime Numbers.” Not really having a sense of what the book was about but knowing that I [...]

A special “thank you” goes to this post source (link at end of post). I have updated the list of integer games online at my site. Now the games are organized into sections of: ordering integers,  addition & subtraction of integers,  multiplication & division of integers, and all operations with integers.  Happy playtime! Homeschool Math [...]

A special “thank you” goes to this post source (link at end of post). I think math vocabulary is something that has mystified students for many generations. My crossword puzzles are a fun way to hone student’s math vocabulary. My original set of puzzles were designed in 2004. But they needed to be updated for [...]

A special “thank you” goes to this post source (link at end of post). This is a bit different entry from the norm, and if you’re not interested in music (or oldies music), just ignore it. (I realize people’s musical tastes vary tremendously.) I just wanted to share a bit of news of my favorite, [...]

A special “thank you” goes to this post source (link at end of post). The unit circle ties together 2 great strands in mathematics: geometry, coordinate geometry and trigonometry. Related posts: Radians: an introduction Arc length for the inner curve of a window Equal areas of a circle gives nice art squareCircleZ If you like [...]

A special “thank you” goes to this post source (link at end of post). “Completing the square” is a method of expressing a quadratic function, and it is an especially useful form for graphing the expression. If we have a function: f(x) = (x+1)^2 + 3, from the rules of graphing (1, 2, 3) that [...]

A special “thank you” goes to this post source (link at end of post). This sounds like such a fun idea! I bet our local group would love to do something like this. I’m going to save this post as a reminder, and I’ll definitely let you know how it goes. Thanks! Comments for Let’s [...]

A special “thank you” goes to this post source (link at end of post). [...] is Planning a New Math Club (posted at Let’s Play Math!) and is facing challenges and has some ideas. “I’m [...] Comments for Let’s Play Math! If you like this content, please follow the above link to the original website!

A special “thank you” goes to this post source (link at end of post). [...] presents Alexandria Jones and the Mathematical Carnival posted at Let’s Play [...] Comments for Let’s Play Math! If you like this content, please follow the above link to the original website!

A special “thank you” goes to this post source (link at end of post). This post should have been put up when I posted about square roots (here, here, and here), because it is the exact opposite of a square root! Where a square root of a number “x” is some number “y” that, when [...]