My Casio Classpad 330 Journey

Second weekend playing with the calculator.

When I was doing phone support often I could not see what the person on the other end was doing. I became quite adept at directing customers on quite difficult tasks blind. The most important thing to do was to adequately define things up front.

With the CAS calculator the windowing system can be quite confusing at first. It is important to name things in such a way that students can listen to your direction and follow it, rather than needing snapshots all of the time.



In the worksheets I have created, the calculator is divided into the screen and the buttons. The screen in divided into the menu bar, the tool bar, the work pane, the status bar and the icon panel. The buttons are blue, grey and black.

i.e.
The Edit, Action, Interactive text at the top is the menu bar
The icons underneath the menu bar is the tool bar
The area underneath is the work pane, it can be split into the top pane and the bottom pane. The work pane is currently filled with the main application.
The bit beneath the work pane (eg. Alg, Standard, Real, Deg, battery indicator) is the status bar.
The stylus and buttons are used to enter data and operations into the calculator.

Here's a link to the "How do I.. ???? on a Casio Classpad" book that I have been using.
Here's a link back to my first article on CAS calculators
Here's a link to an index of other CAS calculator posts.

Management in schools

Having a management background sometimes makes me have to look twice at those that are in management positions, particularly those that criticise superiors. In my day that was called whiteanting.. a popular (and healthy) pass time of staff, a particularly unhealthy occupation of management. Management that did stupid things like that found themselves being shown the front door.

For similar reasons management that wished to leave were given their severance and shown the door rather than working out their notice. Unhappy management talking about how the "grass is greener" elsewhere rarely have the motivation to do their job to the level required. It tends to be half hearted and based around explaining why leaving is a good idea to other staff. There are exceptions based on circumstance but usually this is true.

A strong administration gives an organisation direction and purpose. In teaching (where promotion is often from within to administration), a strong relationship often exists with staff and the newly promoted that cross the staff/admin boundary; this inexperience ends with the newly appointed siding with staff rather than with school policy set by the senior management group. Pre-policy positions should be open to discussion with staff but dissension with policy (once decided) should stay with the SMG.

This is why in many cases it would be better to gather administrative staff from out of school, rather than promote from within (temporary postings are the exception to this, this is where you get experience for a permanent position). The staff relationships are less fixed and a clear line can be drawn that is needed for a working environment. Good time guys with unprofessional relationships with staff allow schools to be run down as staff run in individual directions and lose direction on teaching outputs. Old boys networks within schools should be discouraged at all costs. Management is about setting the school direction and managing staff - when management and staff are travelling in different directions then this is not a positive outcome.

Surfing & Structured and sequenced content

When at uni, in my last year I sent a letter to the Dean about the mathematics course. The gist of it was that I thought that the course needed more structured and sequenced content.

It seems this is becoming a more popular view. When 'mature age' students leave university they have a real disadvantage as a lot of mathematics is not fresh in your mind (as it is when you leave school) and you have no real idea what is to be taught to what year group and how. You have to muddle along for a few years before it is all sorted out.

There is also a pressure for all of the kids to feel successful all of the time. To achieve this, typically teachers dumb the course down a little. As you get more experienced you can lift the bar higher without students feeling hopeless, get them to 'ride the wave' so to speak.

The idea of mandating a minimum curriculum (and setting a syllabus) in mathematics for each year group is a good idea. By setting a standard this will assist graduate teachers know what needs to be taught, where the course is going in following years and make for an easier transition when moving between schools. The scope and sequence documents are a good start, but we probably need to now go further and make it compulsory to use these as the minimum benchmark for teaching mathematics K-10.

Blog entries on CAS calculators.

Other educationWA articles on CAS calculators:

General
My first use of the CAS calculator Click here
Naming conventions Click here
How to navigate through menus (what's a menu bar?) Click here
Naming variables Click here

Statistics
How to create and use a list of data (what's a list editor??) Click here
How to create a graph? (What's a StatGraph?) Click HereHow to find the mean and missing values of a data set? (how do you solve an equation?) Click here
How to find probabilities with Normal Distributions? Click Here
Finding simple moving averages Click Here
Combinations and Permutations Click Here


Algebra
Balancing equations. Click Here
Solving simultaneous equations. Click Here
Absolute Value and Inequalities. Click Here
Absolute Value and Inequalities 2. Click Here
Functions (Inverse) Click HereFunctions (fog(x)) Click Here

Trigonometry
How to find an unknown angle from a triangle using the sine rule. Click here
Storing formulae on the CAS calculator. Click Here

Number
Annuities, Reducible Interest and Amortisation (Finance). Click Here
AP's & GP's. Click Here

Calculus
Finding and solving problems involving the 1st derivative. Click Here

The articles should be completed in order as they build upon previous entries. They use the Casio Classpad 330.