Category Archives: teaching

Book review: Lauren Ipsum

Posted on February 9, 2013 by

Lauren Ipsumstory by Carlos Bueno; illustrations by Ytaelena López I don’t quite remember how I first stumbled across the website for this little gem of a book, billing itself as “a story about computer science and other improbable things”. But … Continue reading →

Posted in books, computation, review, teaching | Tagged , , , , , | 1 Comment

Introduction to Mathematical Thinking

Posted on January 22, 2013 by

Keith Devlin is going to be offering another instance of his online course, Introduction to Mathematical Thinking, starting on March 4. The idea is to serve as a bridge between high school mathematics— which focuses on solving specific types of … Continue reading →

Posted in links, teaching | Tagged , , , | 2 Comments

Introduction to Mathematical Thinking with Keith Devlin

Posted on August 22, 2012 by

I just learned from Denise at Let’s Play Math! that Keith Devlin is going to be teaching a course on Coursera called Introduction to Mathematical Thinking. It’s free and open to anyone with only a background in high school math. … Continue reading →

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Penn Alexander math club: map coloring

Posted on February 23, 2010 by

Today in math club I had the students explore map coloring. I tried to leave it as open-ended as possible to start—I just said that we were going to draw maps with countries, and try to give each country a … Continue reading →

Posted in geometry, pattern, puzzles, teaching | Tagged , , , | 4 Comments

MangaHigh.com

Posted on December 28, 2009 by

I recently received an email suggesting that I check out the website MangaHigh.com, which has interactive math-based games for elementary through high school students. Now, I am generally pretty skeptical of such things. For one, they are usually of relatively … Continue reading →

Posted in games, links, teaching | Tagged , , | 1 Comment

The haybaler

Posted on December 16, 2009 by

At Penn Alexander’s math club yesterday, the students worked on a fun puzzle that I’d never seen before. It goes like this: You have five bales of hay. For some reason, instead of being weighed individually, they were weighed in … Continue reading →

Posted in arithmetic, challenges, logic, puzzles, teaching | Tagged , , | 11 Comments

Who Am I?

Posted on November 29, 2009 by

An excellent puzzle from JD2718: There are five true and five false statements about the secret number. Each pair of statements contains one true and one false statement. Find the trues, find the falses, and find the number. 1a. I … Continue reading →

Posted in challenges, logic, number theory, puzzles, teaching | Tagged , , | 13 Comments

Number bracelets

Posted on November 17, 2009 by

Recently I’ve been volunteering with the middle school math club at Penn Alexander, a PreK-8 school in my neighborhood. Today we did (among other things) a fun activity I’d never seen before, called “number bracelets”. The students seemed to enjoy … Continue reading →

Posted in arithmetic, iteration, pattern, sequences, teaching | Tagged , , , | 12 Comments

Teaching precalculus in 2008-2009

Posted on September 14, 2008 by

This year I will be teaching precalculus via correspondence to two homeschool students. Don’t ask how this happened, it’s a long story, but I’m excited! It will be fun for me to gain more experience teaching and writing, and to … Continue reading →

Posted in links, meta, teaching | Tagged , , , , | 6 Comments