Saturday, November 14, 2009

School report cards

Last year Julia Gillard forced through school report cards to be made available based on the statistically questionable NAPLAN results. She stated that league tables would not be made from them.

Anyone with an ounce of sense realised this was nonsense. Then she linked agreement to funding - "Do it or else!"

Here is an excerpt from what the report cards are to look like:



Through a simple examination of the card you can see that each school is compared to all schools and to a socioeconomic band.

It is a five minute job to create a league table from this! Promise broken Julia!

It would ignore improvements to the school, discourage entry to the school and undermine any improvement model as students entering the school would be of declining standards (better students would go to the better performing school despite overcrowding/bullying/lower teaching standards etc.)

Of more concern is the second part of the page:

Of interest is the last category: % indigenous students.

What ?? Why should it matter that there are indigenous students in a school?

If we are to encourage students to become Australians, why single out any one portion of the population, why not caucasians, South Africans, Sudanese, Italians or Chinese. Remember this idea is from the minister of social inclusion!

Teaching staff ratios are also misleading. What are teaching staff doing? Quasi administration/pastoral care, specialty positions such as HOD on 0.6, GIRL or GIRN positions, in low ratio classes such as ESL/additional needs.

Whilst we are considering these factors how do refugees, ESL and additional needs students impact on NAPLAN results and school performance? Should they be discouraged from entry to avoid poor results?

This whole concept is just a bad idea. Poor over generalised statistics, designed to mislead the public and is a populist vote grab. This sort of information is best kept within the education system and used for valid statistical purposes until it can be presented in a valid and straightforward way to the public - personally I don't believe this can be done, it is just too complex.

If you are interested in reading more, here is the link to the mySchool website.

Updated 18/11/2009: Seems I'm not the only one concerned. Click here and here.

Updated 18/11/2009: Seems Julia is also the Minister of "wasting public funds", "rhetoric" and "denying the obvious". Click here to read her address on education.

New Poll

I've added a new poll. The last poll clearly showed that maths is the greatest because calculus rocks, closely followed by 'because English teachers are all nuts' and 'you have to be loony to teach science'.

A more serious one this time.. are any of the new maths courses an improvement on the old courses? I've enjoyed teaching 3AB MAT/MAS but have nothing to compare it to. The poll is on the left hand side.

Saddler 3C MAT/MAS books

Saddler has released his 3C MAT/MAS books.. time to take a trip down to Wooldridges - $23.95 or so per book.

Teaching Surface Area

I've been examining the issues with teaching surface area.

Here's an approximate sequence:

Prior knowledge required
(easily takes 3 weeks+ yr 10 with a weak group filling gaps)
  • Notation for parallel and perpendicular sides
  • Perimeter of Rectangles, Squares, Triangles (with all sides given)
  • Area of Rectangles & Squares, Triangles (with all sides given)
  • Circumference and Area of circles
  • Area of Trapezium, Sectors
  • Area of Composite Shapes (with all lengths given)
  • Area of Composite shapes (finding missing sides using subtraction)
  • Area of Composite shapes (using ratios of the area of known shapes to find area eg. 1/2 circle)
  • Arc length
  • Pythagoras, Trigonometric ratios
  • Area of Composite shapes (using Pythagoras & Trigonometric ratios to find missing sides)
Surface Area Topic
  • Identifying 3D shapes (cylinders, spheres, pyramids & prisms)
  • Constructing 3D shapes using Nets (cylinders, pyramids and prisms)
  • Identifying cross sections of 3D shapes
  • Finding the area of cross sections of 3D shapes
  • Finding the surface area of simple 3D shapes using defined formula (cylinders, spheres, pyramids and prisms)
  • Using surface area of simple 3D to solve composite surface area problems (and using subtraction to subtract shared hidden sides)
  • Deconstructing 3D shapes into constituent 2D shapes
  • Finding the surface area of composite 3D shapes using deconstruction and 2D shapes
  • Finding surface area of simple 3D shapes that have had sections removed using ratios
  • Finding the surface area of composite shapes using simple 3D shapes, deconstruction and ratios.
  • Using Pythagoras and Trigonometry with planes in 3D shapes to find surface area

It's a big topic!