I recently realized that I have a tonne of different math mini-applications that I’ve built over the years, and I will need to take the time to catalog them at some stage (note that some of these will just not run in Internet Explorer). For now, here’s a list of the ones that might be useful, in no particular order:

**24 solver**(solves the**game of 24**)**Algebra solver****Calculator****Sierpinsky’s Carpet****Chinese remainder theorem calculator****Arbitrary precision division calculator****Simulator**for the**Drake Equation****Quadratic equation factoring calculator****Compass demonstration****Labyrinth game****A simulation**of**John Conway’s game of life****A game around estimating the size of operations**with two fractions**Sierpinsky’s Gasket simulation****Gaussian operation calculator**(intended to allow students to experiment with matrix operations)- A
**simple game**around comparing sizes of fractions - An
**interactive spinning cube** **Simulation of a game involving two dice**being rolled repeatedly.- A
**simple block game**for younger kids - An implementation of (a simplified version of)
**Logo in the browser** **A simulation**of the classic problem: how many cereal boxes do you need to buy to get all 6 toys?- An overly simplified
**disease spreading simulation** **Factor tree calculator****F = ma simulator**(for forces)- A
**symbolic logic calculator** - An
**interactive multiplication calculator** - Visual
**Venn diagram tester** **Koch snowflake animation**- A
**Canadian mortgage calculator** **The factors game!****Puzzle generator****Rolling dice**- The classic game of
**Towers of Hanoi** **Simple typing game**- An online variant of the classic
**Countdown game**

Mr. Wees,

My name is Kelsey. I am a student in a class called EDM 310 at the University of South Alabama in Mobile, Alabama. In my class, we are creating and learning about blogs and technology. This class is teaching us ,as future teachers, why it is important in education. I love math! I think it is so important for children to learn math at all ages in their educational journey. I am glad that you put together this list for us to use. I will have to remember this tool when I become a teacher. I would be a fun learning tool for students. Have a great week!

Thanks,

Kelsey

Have any thoughts on how you could use these in your class?

I liked the Venn Diagram tester. A teacher can use this on their smartboard and the students can use it as a learning tool. You can place the Venn diagram on the smart board and let the students come to the board and fill in where they think the correct answer is and let the smartboard tell the answer. I think it would be fun.

Hello Mr. Wees,

This is an impressive set of tools that you created. Are they written in JavaScript?

If one wants to learn how to write these kinds of apps, where would be a good place to start?

Thanks!

Sara

Hi Sara,

Yes, these are mostly written in Javascript although some are written in Flash/Flex. I just basically bought a book about programming in Javascript and worked from there, although it was definitely handy that I had done a lot of programming as a teenager.

David