# ClassPad Corner - Programs

## We are delighted to release to you the new CLASSPAD programs - First release set.

In response to teacher requests we have been working hard to produce some programs for the ClassPad that serve a few different purposes. We hope you find them of use.

Should you find any problems (BUGS) with the programs, please use our Quick Contact Form page to report them. Any suggestions for improvements can also be sent via the same contact.

Some of the popular programs used in conjunction with your old Graphics Calculator are back and some new ones have been written for ClassPad:

## *trisolv *binprob *seqmate *line_2pt *grpheqL1 *grpheqL2

### HOW THEY WORK:

In most cases, the programs have been designed to work in the following way:

1. User taps on the variable that they must enter and a pop-up input box will appear.

2. [=] will clear all of the inputs so you can start over.

3. [EXP] will end the program and perform some final steps to 'clean-up' after itself.

### We have made the programs available in two forms:

LOCKED:

So that the source code cannot be seen or edited

and UNLOCKED :

So that the source code can be seen and edited if required.

They are saved in the folders 'locProgs' and 'ediProgs' within a vcp file called cp_programs_set1_101108.vcp

For information on how to install and run the programs on your ClassPad Manager or ClassPad Hand-held please refer to the document 'Working with and Managing Content' on the ClassPad downloads page

**Note: These programs have been written for ClassPad OS 3.03. If you are running an older OS on your ClassPad or ClassPad Manager, we advise you to update before installing the programs. If you would like to find out how to update click here **

**Note: If you are running these Programs on your ClassPad Manager - when starting program & when you have to 'click' to input a variable, be sure to 'click' AND HOLD your mouse button down until the input box appears. Your PC processor is a bit faster than a CP processor and a single click will not be recognised. **

## PROGRAM DESCRIPTIONS:

### trisolv

Provides a visual representation of a triangle with 6 measures (3 lengths and 3 angles). The user inputs the sides lengths and or angles that they know. When the program has sufficient information, it computes the remaining measures. The user can quickly and easily perform repeated computations with different triangles.

### binprob

Suppose you need to compute P(A<X<B) (or something similar) where X is B(n,p). With binprob, the user inputs n, p, A and B and the program computes almost all variations possible: P(X=A), P(X<A), P(X>A), P(A<X<B) and so on. The user can easily edit any input and the program will recompute.

### seqmate

Assists with both APs and GPs. It will compute a and d given 2 terms of an AP or a and r given two terms of a GP. The user can also enter a and d (or a and r) if given. The program will produce a traceable table and graph for the AP or GP up to the term defined by the user. The table also includes a cumulative sum column.

### line_2pt

The user inputs two points and the program will compute the distance between the two points (in exact form and displayed in natural output) and the midpoint and the equation of the straight line between the two points. The user can easily edit any input and the program will recompute.

### grpheqL1

A randomly generated graph of a linear function on a set of grid axes is presented to the user and they have to provide the slope and y-intercept. Should they get one or both wrong, they are prompted to try again. L1 randomly generates lines with integer slopes between -3 and 3 and integer intercepts between -3 and 3.

### grpheqL2

A randomly generated graph of a linear function on a set of grid axes is presented to the user and they have to provide the slope and y-intercept. Should they get one or both wrong, they are prompted to try again. L2 randomly generates lines with integer or half-integer slopes between -4 and 4 and integer or half-integer intercepts between -4 and 4.

OR contact us and request your copy of the 'ClassPad corner CD' which includes these programs and more.

# ClassPad eActivities

An eActivity is a new, exciting innovation. It is small packet of learning that can be written by anyone, even yourself! It is loaded into the calculator and a student is then free to work through it. It is normally a scripted learning experience that has all the functions of the calculator at its disposal. eActivities can be used to present students with assignments, learning opportunities or in fact to build your own simple software (like the Probability Calculator you might have seen already).

- To learn how to write an eActivity, visit ClassPad.org and Casio WorldWide Education
- For more eActivities, check out these at ClassPad.org

Euler's Method
## Euler's MethodThis eActivity deals with Euler's method and takes advantage of the algebraic spreadsheet in the ClassPad. The spreadsheet on the ClassPad is the only spreadsheet in existence that can compute algebraically. This is helped to make the enter of the DE very simple. The kids can just enter the RHS of the DE as it looks. Encourage them to use the bold italic variables (or lots of multiplications and brackets). |
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