Texas Instruments TI-Nspire CX Manual de usuario



FirstSteps

with



Technologyforteachingand

learningmathematics



SevenIntroductoryTutorialsforthe

Handheld

™



Start by spending a few seconds looking at the layout of the keypad.

™







This rst tutorial introduces some of the key features of TI-Nspire™ learning technology, in parcular the

structure of TI-Nspire documents, with dierent applicaons operang on dierent pages. The various menus

are introduced, as well as creang and navigang around documents. The tutorial assumes that you are using

the TI-Nspire handheld device and the tutorial begins by drawing a comparison between this and other types

of technology.



Pick up the TI-Nspire handheld device and, if you are used to using a calculator, parcularly

a Texas Instruments TI-83 or TI-84 graphics calculator, you are likely to feel a certain reassuring familiarity:

there’s a screen and a keyboard laid out in a fairly familiar way. As with many calculators the  switch is in

the top right corner. So press c to switch on.



See Geng Started with the TI-Nspire Handheld, Recharging the Handheld

Please don’t worry about what’s on the screen for the moment, but think about how to switch it o. The c

key has “o” wrien in light blue above it so that’s the one to use aer pressing the blue key marked /.

But just a minute, it was a key marked  that you used on the calculators, and the change to the use of a 

key is quite signicant. The designers at TI have moved to making this device much more like a computer and

it has a ctrl key, /, and also a shi key g. Many of the main keys on the handheld have second funcons

wrien in blue above the key and these are acvated using the ctrl key. Noce for example q, p and h. The

ctrl key can be used in conjuncon with the alphabec keys to create keyboard shortcuts just as you are used to

doing on a computer. For example, you can copy and paste using /C and /V. There’s also that most useful

keyboard shortcut for undoing a previous acon, /Z, which can also be acvated by pressing /d(ª).

(See Geng Started guide, Using Keyboard Shortcuts for a full list).



Just like a computer, documents can be stored on the TI-Nspire CX handheld – The TI-Nspire™ CX handheld

comes equipped with 192 MB of memory Of the total memory, 128 MB is dedicated to document storage. As

documents are created and stored they take up space on the handheld’s memory so you may nd that every

now and again you need to free space on memory aer long-term use. If there isn’t enough memory on the

handheld, you can do one of the following:

• Back up documents and folders to a computer or another TI-Nspire CX

• Delete documents and folders you no longer use

• Reset the memory, which deletes all les and folders on the handheld

™





The TI-Nspire™ CX handheld comes with a rechargeable baery, which should be charged for at least six hours

before rst use. The built-in rechargeable baery does not need to be removed from the handheld in order to

recharge it. The handheld will sll work and can be used while it is charging.

With use of 2 hours per day at the default brightness level the baery should last for up to 10 days.

The handheld comes with the following cables:

• Standard mini-A to mini-B USB cable for transferring les between handhelds

• Standard A to mini-B USB cable for transferring les to and from a computer and for charging the baery via

the USB port



To charge the baery in the TI-Nspire™CX handheld:

• Connect the handheld to a computer using a standard A to mini-B USB cable. If the driver is not found when

the handheld is connected to the computer download the soware that includes a driver from

.

• Connect to a wall outlet using a TI wall adapter (sold separately).

• Place the handheld or mulple handhelds in a TI-Nspire™ CX Docking Staon.

™





When you switched on a calculator you expected to see

what was called the  and you’d be able to

start carrying out calculaons right away. But the TI-Nspire

handheld is dierent in this respect too. Press c, the

home buon, a black key at the top right of the keypad. You

should see a screen similar to this. Navigate to the various

icons on the Home Screen using the large square 

on the keypad. This behaves as both a touchpad (like using a

laptop), and as a navigaonal device as you can press on the

up, down, le and right arrows to move the selector around.

To click or select something you press the x square symbol in

the middle of the touchpad, or press the enter key. However

don’t select anything else yet!

Consider whether the TI-Nspire’s home screen is more reminiscent of a calculator or of a computer. When a

computer wakes up you rst see the desktop and in many ways this TI-Nspire Home Screen is similar. With a

computer you have to choose an applicaon to use -- a word-processor, spreadsheet or whatever. You then

must open a document within which you will be able to write text, do calculaons, manipulate images etc.

 Desktop  Choose Applicaon  Open Document

In many ways working with TI-Nspire is similar. You always have to work within a document and you can use

dierent applicaons to calculate, draw graphs, , work with geometry, manipulate lists and spreadsheets, work

with data and stascs, add notes and perform data logging.

The TI-Nspire applicaons are:

 

 

 

 

 

 

 ™

™



What is quite dierent from the computer is that within one document you can have mulple pages or

problems that can make use of the dierent applicaons. The spreadsheet on one page of a document can

interact seamlessly with calculaons done on a calculator page and graphs drawn on another. You can also

have more than one dierent representaon on one page.

This use of mulple representaons is one of the many things that make the TI-Nspire such a powerful tool.

So with TI-Nspire you rst open a document, or start a new one, and then choose an applicaon.

 Home screen  New document  Choose applicaon

 If you would like to return to the document you are working on without inserng

a new page, from the Home screen select opon .

You can do this by pressing 4 on the keypad.

™





Because there are some occasions when you really just

want to carry out a quick calculaon or draw a quick graph

the TI-Nspire includes a feature called the .

The scratchpad is designed for those casual throw-away

calculaons that need to be done from me to me, but

are not worth keeping in a full document. To access the

Scratchpad press ».

This opens a calculator page for performing quick calculaons.

Pressing » again swaps between the calculator and a graph

scratchpad page. To close the Scratchpad simply press d.



In order to see what documents are pre-loaded on your

handheld you need to use opon 2 on the Home screen:

…

Either use the touchpad to move the selector down to

the … opon then press x to select it.

Or use the touchpad to move the cursor over opon 2 and

x Or just press 2 key to select opon the 2nd opon.

You should see a screen called the Document Browser and it

will be something like the one shown here. Documents are

organized into folders as they would be on a computer. A new

TI-Nspire handheld should have a folder called :

Tip: You can use either x or · as

alternave key presses

Move the cursor to the folder entled .

Then press x or · or ¢ on the touchpad to open the folder.

Inside the  Folder on your handheld you will

probably nd a document entled ’Geng Started 3_0’.

Use ¤ to locate and · to open the document.

™



e is oen used to move to and

highlight dierent parts of the screen

Name of Document

Total number of pages in the problem

Number or Name of the Problem

If the handheld has been used previously you will see a dialog

box asking you if you want to save the document that is

currently open. Unless you want to save your previous work

press e or ¢ to move the highlight to No. To conrm this

choice press ·.



When the document opens you may see a screen similar

to the one shown on the le. For the moment, please do

not follow the instrucons on the screen just yet! Connue

working through this tutorial, which will introduce you to

many of the key features of the TI-Nspire document model.

Among these key features are useful and easy ways to

navigate through documents. For example, pressing / ¢ will

take you to the next page in a document. Similarly, pressing

/¡ returns you to the previous page. Pressing /£ will

take you to the Page Sorter which enables you to move

quickly and easily through the pages of a document.

Noce the informaon typically provided on the Page Sorter:

A TI-Nspire document can consist of mulple problems and each problem can consist of mulple pages.

For example, the document shown here consists of at least two problems, with 5 and 9 pages respecvely.

™



If the ‘Geng Started 3_0’ document is present on your handheld, work through it now as far

as page 2.5. This will allow you to revise what has been covered so far in this tutorial

Scroll downwards with the Touchpad and you will see all the problems in the document. If you move the

highlight onto Problem 2, say, and press ¡ the pages of that problem will close up. Pressing · or /¤ takes

you back to single page view on the page currently selected.

Each page of a document contains one (or more) of the TI-Nspire applicaons.

As a reminder, these are the same applicaons that can be accessed from the Home screen, i.e.:

 

 

 

 

 

 

 ™

The use of each of the applicaons which you might want to

use for data logging is covered in the tutorials that follow. Any

page can be divided into as many as four work areas, allowing

up to four dierent applicaons to be used per page. To do this,

See ‘Spling the Screen’ in Tutorial 3, page 23.

Shown here is a page that has been split into two with the

 applicaon on the le, and the 

applicaon beside it.

™





Return to the Home screen, and select … to access

the document browser. Noce that within the document

browser new folders may be created or folders renamed.

Items that are grey, rather than black in a menu cannot be

chosen in the current environment. For example, on the

screen on the le, opon … is unavailable.

To save a document under a new name press ~.

This opens a menu providing access to document management features. By pressing 1 and then 5 the

document can be saved under another lename.

Pressing d will always close

down a menu or dialog box.

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