This is not an interactive resource; rather is an article by Dan Teague from the North Carolina School of Science and Mathematics about 'generating functions', which is an amazing tool for solving some tricky questions about permutations and combinations.

Apologies - this is not a digital resource, but it is such a wonderful puzzle that I just had to include it.

I lived in Eugene Oregon in the summer of 1980. A local newspaper had a wonderful weekly puzzle column, so each week I would buy the newspaper and go to a coffee shop and attempt to solve that week's puzzle. The link below is my favourite puzzle from that era.

I have no idea who the author is, so if you have any knowledge about this puzzle can you please click on [Contact Us] and share what you know. The file is available as a Word doc or as an Acrobat pdf file.

Three thumbs up!

This Word document is a beginner's guide to Geogebra. Geogebra is a free dynamic geometry program available in both Windows and Mac format from
http://www.geogebra.org/cms/

This document gives a brief introduction to Geogebra in the context of circle geometry.
Thanks to David Crewe for sharing.

Students will approximate the area under a curve using Riemann sums. This will be done by utilizing a program that computes the Riemann sum as well as drawing the graphical representation. The activity concludes with students discovering that if enough Riemann sums are used, then the area under a curve can be calculated with the required degree of precision.

http://education.ti.com/educationportal/activityexchange/Activity.do?cid...

One key ingredient - maybe THE key ingredient - for students to be able to solve maths word problems is being able to VISUALISE what they read. The attached document gives you a step by step approach to teaching students how to visualise word problems as a key step to solving the problem. Thanks to Jude Ocean from RMIT in Melbourne Victoria for providing the core material for this document.

This is a worksheet on Fermi Problems that I created back in 2005.

My Stuff is where I put resources that have nothing to do with maths and/or nothing to do with digital resources and/or nothing to do with interactivity.

It is just a handy location for putting files on the web that I want to share.

The attached file is my bible on database Normalisation. I can't remember where I got it from, but probably from someone on the qsite-ipt list. Please advise if you know the source.