# IntMath Newsletter: New interactive graphs, ethical math help, resources

By Murray Bourne, 30 Nov 2011

30 Nov 2011

In this Newsletter:

1. Explore basic graph concepts and understand them better

2. My dilemma - ethical math help

3. Resources

4. Twitter favorites and updates

5. Friday math movies

6. Final thought - mistakes and learning

## 1. Explore basic graph concepts and understand them better

I recently added new pages in the Plane Analytic Geometry chapter in IntMath. Each one now has an **interactive graph** that helps you to understand how the formula works.

Check them out:

I'm hoping the interactive JSXGraphs are useful for both students and teachers. Please tell me what you think of them. Any improvements you can suggest which would make them more useful for you?

[Please give your suggestions in the comments section at the end of this post: Explore basic graph concepts and understand them better]

## 2. My dilemma - ethical math help

Is there a difference between paying someone to do your math homework and getting a computer to do it? Are they both unethical?

I'd be interested in your thoughts on this. See:

My dilemma - ethical math help

## 3. Resources

Manga High is a "new **games-based maths** teaching resource". For example, Pyramid Panic requires you to "use your geometry skills to build a path across the voids, and escape from the pyramid, staying ahead of the mongrel demon Ammit. Battle skull bats and skeleton thieves with your ankh cross." Topics covered in this game include Tigonometry, Pythagoras, Areas, Perimeters and Circumference. There are free "lite" versions, and paid versions allow social interaction with students from other schools.

GeoGebra examples: Analemma shares some **interactive GeoGebra applets** that illustrate mathematical concepts. Some of the topics include Bayes' Theorem, Circle as a limit of polygons, Circles of Apollonius, Domain and Range, Ellipse in a Box, and Eratosthenes measures Earth. Being java-based applets, they take a long time to load, but it's worth the wait.

## 4. Twitter favorites and updates

Here's an interesting idea. Twylah gives you a summary of Twitter tweets in a newspaper style. Here are recent IntMath tweets in this form:

Follow @intmath on Twitter!

## 5. Friday math movies

**Suitable for:** Everyone, but especially teachers.

Here is an excellent way to animate math concepts. |

**Suitable for:** Everyone, especially if you are on Facebook (and who isn't?).

This is first in a series of funny videos for math nerds. You'll enjoy it even if you are normal! |

## 6. Final thought - mistakes and learning

This is from author John Powell, who could have been talking about learning math!

"The only real mistake is the one from which we learn nothing." [John Powell]

Until next time, enjoy whatever you learn.

See the 2 Comments below.