Showing posts with label Mathematics. Show all posts
Showing posts with label Mathematics. Show all posts

Tuesday, June 22, 2010

Graphing mathematics - Free CAS


There was a discussion on echalk today regarding a school's migration to Apple Macs and how their maths teachers were resisting the change so they could still use FX Draw on their PC's so that they could create graphical functions for printing and class use.

I was immediatly interested why they would still use a paid for program when there were quite a few free and open source alternatives.

So here is the list I came up with that were free and cross platform.


Going from simple to complex....

the open source Mac / PC - Maths Trax from NASA

http://prime.jsc.nasa.gov/mathtrax/index.html

the open source cross platform geogebra (my favourite)

http://www.geogebra.org

or the open source cross platform C.A.R Metal

http://db-maths.nuxit.net/CaRMetal/index_en.html

or if you really want to freak them out - the free open source cross platform Maxima and Sage

http://maxima.sourceforge.net/

http://www.sagemath.org/

Monday, April 12, 2010

Myschool website

Parliament House, Canberra: the seat of the Pa...Image via Wikipedia

At the beginning of this year the Australian Government via ACARA Launched the Myschools website. a league table of all the schools in Australia, both public and private - based on one metric - the National Assessment Program Literacy and Numeracy, a series of tests given to year 3, 5 7 and 9 students in May.

To say it is a little unfair would be understating problem. One metric on one week determines the score for an entire school. The test is based on the New South Wales Curriculum (each state has it own curriculum - National Curriculum is coming this year).

The tests are mostly (except for the writing) multiple choice, and the mathematics test has almost the same amount of reading as the comprehension tests, severely limiting ESL students who my be capable of mathematics but can't comprehend the way the question is worded.

The website does integrate information like demographics but the format is difficult to read if you just want to get an overall feel for the school.

Max Cruise wrote an excellent article in Rotarian Life and has given permission for me to copy it into this blog. He has an excellent idea.

Finally, thanks to myschool.com, we can see how badly our local school is performing. We got a NAPLAN average of 301! How bad is that? Actually, it's hard to tell because nobody knows what it means.

Then, even when the score was adjusted for ICEA RAW (although we don't know what this means either), it was only 108, which can't be good, can it?

Humans are funny. If we can rank something or categorise it, we will.

However, it is difficult to see the advantage this latest bureaucratic offering offers us in dealing with disadvantage - ostensibly the reason for myschool - since we know where the disadvantage lies anyway.

Nevertheless, we can now see our rank, thus enabling us to blame someone other than ourselves for our children's failings.

Fantastic! But why stop at schools? Why not a myschool thingy for all public services?
Lets start with politicians; they would surely welcome mypollie.com to weed out under performers. We could use the Commonwealth Research Assessing Politician's Laziness and Niceness scores. Adjusted for disadvantaged electorates, such as those with National Party members.

Better yet, how about a myparents.com? Schools could see who the under performing parents are so that they can be sacked or retrained or given more resources.

Hang on as with schools, we already know where the under performing parents are, so lets give them some dosh and cut out the middle-plan.

As with the current obsession with metrics and KPI's in the corporate world - National testing is not going away... and even if teachers strike on test days (which is what a lot of teachers are planning) there will be some sort of public ranking.

I just wish is was more broad based than one series of tests on one week. We don't assess students on one test for their reports, we take into account a range of assessment tasks as well as behaviour and improvement. It reduces 'gaming" the system and assessments can be made in a range of contexts.



Monday, October 26, 2009

So much to tell you!


Very busy weekend - did a public demonstration of Ed-e at Scitech on the weekend and during some down time found a whole heap of resources so it's going to be a list today.

www.storylineonline.com - Popular picture/storybooks read by famous actors and with excellent multimedia and subtitles

http://www.brightstorm.com/ - Videos for high school mathematics, liturature and writing - for those who need the visual and aural.

http://www.samanimation.com/ stop motion animation the easy way.

www.yacapaca.com - LMS hosted for free.

Schoology - LMS hosted for free

Pixton - comic creator

vozme.com - online text to speech.

Kidsspell.com - online games based on spelling lists

animasher - easy animation with your own media

Myths and legends - stories and online software to create your own.

Creative kids central - Classical music lessons and interactives


Have a play with this lot - see what you think.





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Thursday, October 15, 2009

Cruising through SourceForge


Sometimes I just like to cruise through SourceForge for to see what is new and whether any programs have floated to the top of the pile. Here are two that I think are worth having for high school. And because they are Open Source they are free.

SweetHome3D is a 3D home decoration program that takes you from plan to rendered 3D environments. You could use it in maths classes to model rooms, layouts and organise space. It will even do outdoor environments. A easy way to start to learn how use CAD programs without all the extra bits.

If you are still using office 2003 (WA DET schools I'm looking at you) then this tool bar might be useful to you if you are in the maths dept. It allows you to render mathematical equations directly into word. Mathematics Toolbar, Drawing Toolbar and Math Database

If you have Word 2007 there is no need for this tool as it is built in to the newer version of office.

Lastly Wikipedia have just released their own reader - Wikireader at $99 US. You can update it for free yourself. It seems like a good idea - I'd like to have a look at one just to try it out but my budget is a bit lean at the moment.