Writing a math answer for a Problem of the Week is very different from writing an essay in English class or a term paper in History class, so we would like to give you some guidelines. You write only one document, but we receive sometimes as many as 300-400 (or more) answers per week to [...]
One evening Elisa was doing her math homework when Dina came by to visit. “The exercise I have to do,” said Elisa, “is this one.” Convert this expression to its calculator key-sequence form, then use your calculator to find its value. “So far I have this much done,” she added. 12 [×] 5 [-] 8 [÷] [...]
[Preface NOTE: The material presented below was lifted from an article I saw some time ago by Dan Brutlag, "Making Your Own Rules". THE MATHEMATICS TEACHER, November 1990. pp. 608-611. What is being given below is how I prepared a handout to give to my classes, mostly as anactivity for use by a substitute.] NUMBER [...]
The topic of Niven Numbers is briefly mentioned on another page in this website. But since writing that, I have been working on the concept a little bit more with some students and I now feel that it deserves its own separate page. So what follows here is a discussion about how it can be [...]
In this page, WTM is going to travel back in time and do some really “old-fashioned” mathematics. Specifically we will look at how the ancient Egyptians multiplied quantities and dealt with fractions. To make things more convenient for our discussion, we will use our own numbering system and symbols. This is a piece of good news/bad [...]
Many years ago I read some interesting articles in a British school mathematics journal about the various patterns that can be found in the decimal expansions of repeating decimal forms of certain rational numbers [aka fractions]. So I began my own investigation of this topic to see what I could discover on my own. Below [...]
In this page, WTM will present some interesting activities similar to those that appear in another page (Digital Diversions). The difference, however, will be that here all ten digits — 0, 1, 2,…,9 — will be used. This is the reason the word “pandigital” is used in the title. (“pan” is a prefix that means [...]