Project Euler

My name is Dan, and I’m addicted to Euler (pronounced Oiler). Not really, but this site is fabulous: http://projecteuler.net/ The gist of it for non-math people is that it has a list of problems, for example, find the 10,001st prime number.  When you think you have your answer, then you type it in the webpage, and […]

How many pieces of Toast?

Once again, OK Go has an innovative video. Naturally, how many pieces of Toast?  Answer is here. Bonus: Did they use both sides of the bread for the drawing?  Did they reuse any blank toast? How long would it take to toast all the pieces at setting 8? Update (11-16-10): Class calculations for how many […]

(Virtual) Scavenger Hunt – Triangles (and review)

Here is another scavenger hunt that I made up for geometry.  The scavenger hunt is a set of problems, where the only way to get to the next set of problems is to have the correct answer and hence the correct web address.  It has isosceles, equilateral, triangle congruence, and logic questions on it.  It’s […]

How Many: People

(note: this post was previously under: Two problems, but it seemed better to split the two problems into separate posts. The other problem is found here.) How many people where at the Rally to Restore Sanity and/or Fear? Gave the applied math class this picture: (thanks to @samjshah for finding this image for me.) Asked for, and recorded […]

How Many: Folds

(note: this post was previously under: Two problems, but it seemed better to split the two problems into separate posts. The other problem is found here.) If you could, how many folds of a sheet of paper would it take for the thickness of the paper to reach the moon? Asked for them to write their guesses down […]

How Big is that Pumpkin?

This is the second time I’ve done this lesson.  You can read up on the previous attempt here. Quick synopsis: There is a local contest to determine how much a large pumpkin weighs, the winner receives a year Family subscription to the YMCA (worth about $800).  This contest concludes on Halloween. Step 1: Find the […]