Starting TI InterActive!

There will be a new icon on your desktop. Double-click it. Depending on your machine and its configuration, it may take a few seconds for the application to open. TI InterActive! starts with the cursor at the top of a blank document. or
Click the Windows Start button, point to Programs, TI InterActive!, and then click TI InterActive!.
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TIP: You can open a saved TI InterActive! document from the Windows Explorer by double-clicking the document.

TI InterActive! toolbar

The buttons on the TI InterActive! toolbar give you quick access to the programs main features.
Performs statistical tests and intervals. Inserts a slider that lets you change variable values. Transfers data to/from a connected TI device. Captures the screen of a connected TI device. Collects data from a CBL, CBL 2, or CBR. Browses the Web and extracts data directly from Web pages. Sends e-mail attachments of your current document.
Performs calculations and defines variables and functions. Specifies the mode settings for each object. Graphs functions and plots statistical data. Generates a table of values for defined functions. Enters and/or edits lists of data. Enters and/or edits matrices. Performs typical spreadsheet operations. Performs statistics regression calculations on lists of data.
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Testing your Internet connection
If you want to use the Internet features of TI InterActive!, your PC must have a working Internet connection. Perform this test to confirm that your connection is working. The 1. On the toolbar, click the Web Browser button built-in Web browser opens and displays the TI InterActive! home page.
2. Click the browsers Close button complete.

. The Internet test is

What to do if the test fails
If you have problems completing this test, verify that you are connected to an Internet Service Provider. If you are on a local area network (LAN), check to ensure that you can access other areas of your network or server. If you are using a dial-up connection, check to ensure that your modem is working properly. Many Web sites contain a button or block of text that you can click to send an e-mail message to support personnel. Perform this test to make sure your e-mail program is registered as your e-mail client. 1. Click the Windows Start button, and then click Run. 2. In the text box, type mailto: followed by your own e-mail address.

The Math Box looks like this while you are editing.

Math Palette

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TIP: Make sure you insert a Math Box for the expression. TI InterActive! cannot evaluate expressions that you type as ordinary text.
2. Type 2^8*4312 into the Math Box. Press the Enter key on the computer keyboard or click on the Math Palette to evaluate the expression. TI InterActive! evaluates the expression, displays the result, and creates another Math Box.
Expression is evaluated when you press the Enter key on the computer keyboard, click on the Math Palette, or click outside of the Math Box.

Result

TIP: You can also close the Math Box by selecting on the Math Palette, or by clicking anywhere in the document.
Empty math box for next calculation
3. Press the Esc key on the computer keyboard to close the unused Math Box. You might expect to see a decimal result instead of 27523 in the preceding example. A close decimal equivalent is 917.33333., but thats only an approximation. By default, TI InterActive! retains the more precise form: 27523. You can, however, change the form of any Math Box result by setting the Computation Mode of the box. 1. Click anywhere in the existing Math Box to select it. A solid border appears around the Math Box to show that it is selected.
Setting the form of results
TIP: You can also rightclick on the Math Box and select Mode from the drop-down menu.
2. Click the Mode Settings button toolbar.

on the TI InterActive!

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Note the three options available under Computation Mode:

Automatic

Uses Exact where possible, but uses Approximate when your entry contains a decimal point. Also, certain functions may display Approximate results even if your entry does not contain a decimal point. Any result that is not a whole number is displayed in a fractional or symbolic form (12, p, 2, etc.). This mode reduces rounding errors that could be introduced by intermediate results in chained calculations. displayed in decimal form.

x := y yx or y =: x

Appearance of items in a Math Box
Using the TI Math Palette, you can change the appearance properties of the entry and the result independently. You can even hide the entry or its result. Some of the properties you can control include:
The font, size, and color used for the entry or result. Whether the result is displayed on the next line or the same line as the entry. Whether the entry or result is displayed in text format, such as (x^2)/(4y), or in math format, such as 4y.
Whether the entry or result is shown or hidden. You cannot hide both.
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Changing the appearance of a Math Box
In this example, you can change the appearance of items in a Math Box. Suppose you want to hide the expression or the result. next to the default option in the 1. Click the down arrow Input box. Click Hide Input.
TIP: Once you evaluate the expression, the Input and Output settings return to the default settings.
2. To hide the result, click the down arrow next to the default option in the Output box. Click Hide Output.
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3. Click (or on the Math Palette menu, click Edit 4 Properties) to modify properties such as scaling factors, font type, size, and color.
Saving a TI InterActive! document
TI InterActive! uses a.tii extension to identify its documents. 1. On the TI InterActive! toolbar, click the Save button Because you have not yet saved this document, TI InterActive! displays the Save As dialog box.
2. If necessary, navigate to the folder where you want to store the document. 3. In the File name box, type a name (such as first report) for the document. 4. Click Save. Note: You can also export a document to other formats. Choose Export from the File menu. The options are Html Web Page, Word Compatible, Rich Text Format, and Plain Text.
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Exercise 2: Storing Values as Variables
You can store a value as a named variable and then use the name to refer to that value in subsequent Math Boxes and graphs. When TI InterActive! evaluates an expression containing the name, it substitutes the value stored under that name.
Define a variable and assign a value to it. Display a variables value in a document. Remove a variable. Perform symbolic calculations. Reposition TI InterActive! objects in a document. Reset all variables.

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Storing a value in a variable
TIP: If you have changed a document and then attempt to create a new document, TI InterActive! gives you the option to save the first document before proceeding.
This example creates a variable named num and stores the result of the expression 5+in that variable. 1. On the TI InterActive! toolbar, click the New button start a new, blank document. 2. Click the Math Box button to
to insert a new Math Box.
3. Type the variable name num and then type := (both characters are required from the keyboard), or click the Math Palette.

num :=

4. Type the expression 5+8^3. The resultnot the expression will be stored in num.

num := 5+8^3

This means: Let the variable num equal the result of 5+8 3.
5. Press Enter on the computer keyboard. TI InterActive! creates the variable num and stores the result there.
Checking a variables value
You can check the value of a variable by entering its name as the entry in a subsequent Math Box. 1. Click the Math Box button necessary. to insert a new Math Box, if
2. Type the variable name num and press Enter on the computer keyboard. The value currently stored in num is displayed as the result.
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Using a variable in a calculation
After storing a value in a variable, you can use the variable name in an expression as a substitute for the stored value. 1. Click the Math Box button necessary. to insert a new Math Box, if
2. Type 4*25*num^2 in the Math Box, and press Enter. TI InterActive! substitutes 517, the value assigned to num, and evaluates the expression.
3. Type 4*25*nonum^2 in a Math Box, and press Enter.
Because the variable nonum has not been defined, it is treated algebraically in the result.

Updating a variable

If you want to update a variable with the result of a calculation, you must store the result explicitly.
Entry a := 2 a^3 a a := a^3 a a^2 N> a a Result 8
64 Variable a updated with result. Variable a updated with result.

Comment

Result not stored in variable a.
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Types of variables

You can store any TI InterActive! data type as a variable. Some examples are:
Data type Expression List Matrix Examples 2.54 1.256 2p xmin10 2+3i (x2) 2 2

{2, 4, 6, 8}

{1, 1, 2} This can be entered as: [1,2,3;3,6,9] xmin10 The answer is:

[93 ] 3 6

Hello myfunc( arg )

Character string Function

ellipse( x, y, r1, r2 )

Entering multiple statements in a Math Box
To enter several statements in a single Math Box, separate them with pairs of colons. Only the result of the last expression is shown.
Effects of repositioning or deleting math objects
You can delete TI InterActive! math objects (such as Math Boxes, lists, and graphs), and you can drag them to a different position on the page. However, deleting or moving an object can cause results to change in the objects that follow it. Thats because variables persist from one math object to another. The physical positions of the objects determine the order in which they are processed by the TI InterActive! math system. The math flow is identical to the reading pattern: left-to-right along each line of a paragraph, and top-to-bottom between paragraphs.
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Example:

Step 1.
Step 2. Math flow Step 3.
If you edit a list or variable at the beginning of the document, the change can ripple throughout the other math objects.
Effect of changing 4 to 3 at the beginning of the example.
But if you change the value assigned to a variable at the end of the document, the math objects that precede it are unaffected.
Effect of changing 4 to 3 at the end of the example.
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Resetting all variables by inserting a math section break
At times, the persistence of variables can create a problem. Suppose, for example, that you want to change the expression stored in num for use in a different equation.
TIP: Math Section Break is on the Insert menu.
Inserted math section break shows the resetting effect on the math flow.
Rules for naming variables
Variable names that you create:
Can use 1 to 32 characters consisting of letters and digits. This includes Greek letters (but not p), accented letters, and international letters.
Do not use spaces. The first character cannot be a digit.
Can use either uppercase or lowercase letters. The names AB22, Ab22, aB22, and ab22 all refer to the same variable. Cannot be the same as a preassigned name. Preassigned names include:
Built-in functions, such as abs( ). For a list of functions, refer to the Functions and Instructions section of the online help.
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Creating a title for the assignment
1. At the left side of the formatting toolbar, click the down arrow next to the font name, and click Arial as the font for the assignment title. next to the text size and click 24 as 2. Click the down arrow the text size for the title. 3. Type the three title lines shown at the top of the sample on the previous page. Press the Enter key on the computer keyboard after each line. 4. Press Enter again to leave a blank line after the title.
Inserting and defining a graph
1. Click the down arrow next to the text size and click 10 as the size for the documents normal text. 2. Type Heres a graph of the function y=sin(x): and press Enter on the computer keyboard.
TIP: The Graph buttons toolbar image reflects the most recently used graph type. To create a new graph of that type, just click the button instead of the down arrow.
3. On the TI InterActive! toolbar, locate the Graph button next to it. A group of buttons is and click the down arrow displayed, representing the available graph types.
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4. Click the Y= button. The Functions editor is displayed along with the Graph window.
TIP: You can define many functions and choose to graph selected ones. Clear the checkmark for those that you dont want to graph.
5. In the uppermost text box of the Y= tab, type sin(x), and then press Enter on the computer keyboard. TI InterActive! graphs the function. 6. in the Graph Click the Save To Document button window to insert the graph into the document.

Resizing the graph

1. Click the graph in the document. A selection box appears around the graph to show that it is selected.
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NOTE: See page 51-54 for more details on formatting and using objects.
2. Move the cursor to one of the corners of the selection box until the cursor changes. 3. Using the left mouse button, drag the selection out to increase (or in to decrease) the graphs size. 1. Click below the graph to deselect it, and press Enter on the computer keyboard to make sure the cursor is positioned at the end of the document. 2. Type the paragraph from page 27 that begins with Zooming in on the right side. and press Enter on the computer keyboard. 3. Click the graph that you inserted earlier. A selection box appears around the graph to show that it is selected. 4. On the main toolbar, click the Copy button selected graph to the clipboard. to copy the
Inserting a copy of the graph
5. Click below the Zooming in. paragraph to position the cursor where you want a copy of the graph. 6. Click the Paste button. A copy of the graph is pasted at the end of the document.

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Zooming in on a portion of the graph
1. Double-click the graph below the Zooming in. paragraph. 2. Click the Zoom Box button on the Graph toolbar.
3. Click and drag the Zoom Box over the right half of the graph. Your selection should resemble the graph below.
4. Click the Save To Document button into the document.

to insert the graph

Completing the assignment
1. Click beneath the graph and press Enter on the computer keyboard to position the cursor at the end of the document. 2. Type the last two paragraphs from page 27 that begin with Double-click the above graph. and press Enter on the computer keyboard.
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Finding zeros of a graphed function
To find the zeros of the graphed function: 1. Double-click the graph you just created to activate the Graph window. 2. Click Calculate 8 Zero on the Graph toolbar. The Calculate Zero window is displayed. 3. You will need to set a lower limit, upper limit, and an initial guess before calculating zero. There are two ways to set limits.
You can enter numeric values in the limit entry boxes. You can click and drag the dotted limit lines on the graph in the Graph window.
4. Type a value directly into the Guess box, or use the mouse to click and drag your guess point on the graph. 5. After setting the initial guess and upper and lower limits, click the Calculate button. The answer is displayed in the Results box.
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Exercise 4: Creating a Report
In this exercise, you create a report based on observed data for a specific airplanes power-off glide performance at several speeds. You then plot the data, perform a statistics regression, and estimate the speed that will produce the minimum sink rate for the plane.
Enter statistical data using the List Editor. View plotted data. Calculate a regression and display the results. Graph a regression and analyze the data.
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Entering the data

You have recorded the following rates of sink after making several timed descents at different gliding speeds. You decide to enter the airspeeds into list L1 and the sink rates into L2.

Airspeeds (L1) Sink Rates (L2)
30 mph 40 mph 50 mph 60 mph 70 mph
600 ft./min. 550 ft./min. 700 ft./min. 875 ft./min. 1050 ft./min.
1. On the TI InterActive! toolbar, click the List button. The List Editor is displayed, with the empty cell at the top of list L1 selected and ready for an entry.
TIP: The tabs at the bottom of the editor let you switch quickly among list editing, matrix editing, and spreadsheet operations.
2. Type the first airspeed, 30, and then press the down arrow key on the computer keyboard to move to the next cell. 3. Type the next airspeed, press the down arrow key, and continue until you have entered all the airspeeds into L1. 4. Click the empty cell at the top of list L2. 5. Type the sink rates in the second column in a similar manner, with the number in each cell corresponding to the number in the first column as shown in the table above.
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6. Click the List Editors Close button into the document. LL875 1050

. The list is inserted

Plotting the glide performance
1. With the cursor positioned at the end of the list, press Enter to create a new line. 2. On the TI InterActive! toolbar, locate the Graph button next to it. A group of buttons is click the down arrow displayed, representing the available graph types. and
. The Functions editor is 3. Click the Scatter Plot button displayed along with a Graph window. 4. Make sure that the Stat Plots tab is selected. 5. In the uppermost text box, type L1 to specify it as the list containing the x coordinates. 6. Press the Tab key to move to the second text box, and type L2 to specify it as the list containing the y coordinates.
7. If it is not already checked, click the check box at the left to select this plot. TI InterActive! plots the data points in the Graph window. The points are not visible because they are outside the default viewing boundaries of the Graph window.
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Viewing the plotted data

1. In the Graph window, click the Zoom Statistics button. The viewing boundaries are adjusted automatically to show all the plotted data. 2. Click the Save To Document button to close the Graph window and insert the graph in the document.

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Extracting the data

TIP: To select only specific rows, drag through the rows instead of clicking the Select button.
When you extract Web data, TI InterActive! creates lists in the List Editor and places the data in those lists. 1. Click the Select button at the top of the browser window. The browser highlights the table of braking distance data. 2. Click the Extract button. The List Editor is displayed, with the Web data copied to lists.
Note: See page 53 for details about resizing objects.
to insert the lists into 3. Click the Save To Document button the document. Adjust the list screen to view all columns of data. Now that you have the braking distance data copied into lists, you can create a scatter plot of the speeds (x) against the total stopping distances (y). 1. With the cursor positioned at the end of the list, press Enter on the keyboard, type Plotted data:, and then press Enter again to create a heading for the regression results. 2. On the TI InterActive! toolbar, click the down arrow to the Graph button. 3. From the drop-down buttons, click Scatter Plot Functions editor is displayed. next
Plotting the braking performance
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4. Make sure that the Stat Plots tab is selected. In the uppermost text box, type FeetperSecond to specify it as the list containing the x coordinates. 5. Press the Tab key to move to the second text box, and type TotalDistance to specify it as the list containing the y coordinates.
6. Press Enter on the computer keyboard. 7. Click the Zoom Statistics button adjust the viewing boundaries. in the Graph window to
to close the Graph 8. Click the Save To Document button window and insert the graph in the document.
1. With the cursor positioned at the end of the graph, press Enter on the computer keyboard, type the heading Stat regression results:, and then press Enter again. 2. Click the Stat Calculation button on the TI InterActive! toolbar. The Statistics Calculation tool is displayed. next to Calculation Type, scroll 3. Click the down arrow down through the list, and click Power Regression. 4. In the text box labeled X List, type FeetperSecond. 5. In the text box labeled Y List, type TotalDistance.
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6. Click Calculate to calculate the results and display the Calculation Results tab. 7. Click the Save Results button. TI InterActive! stores the results in variables, closes the Statistics Calculation tool, and displays the selected results in the document.

Displaying the plotted data with the equation
1. With the cursor positioned at the end of the regression results, press Enter on the computer keyboard, type the heading Graphed regression equation:, and then press Enter again. 2. On the TI InterActive! toolbar, click the Scatter Plot button. 3. Click the Stat Plots tab. 4. In the uppermost text box, type FeetperSecond. 5. In the second text box, type TotalDistance. 6. Press Enter on the computer keyboard. (If it is not already checked, click the check box at the left to select this plot.) 7. Select the f(x) tab. 8. In the uppermost text box of the f(x) tab, type regEQ(x) and then press Enter on the computer keyboard. TI InterActive! graphs the regression equation.
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9. Click the Zoom Statistics button adjust the viewing boundaries.

in the Graph window to

10. Format the graph to show the relevant portion of the function. (You may note that the function continues in the third quadrant, but only positive values are relevant.)
TIP: To format this graph, click Format. Change Xmin to 0, Xmax to 100, Ymin to 0, Ymax to 300, Xscale to 10, and Yscale to 50.
TIP: You can doubleclick the Stat Regression results any time to explore a different regression.
to close the Graph 11. Click the Save To Document button window and insert the graph in the document. You can visually compare the plotted data and the graphed regression equation.
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Exercise 6: Reviewing Miscellaneous Functions
TI InterActive! includes several features that can enhance the quality of the report or assignment. In this exercise, you insert images, set special features for these images, and print a TI InterActive! document.
Insert an image into a TI InterActive! document. Set text-wrapping options for an inserted object. Set your preferences for TI InterActive! Print a TI InterActive! document.
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Inserting images in TI InterActive!
Inserting images into a TI InterActive! document is similar to inserting images into most word processors. TI InterActive! can accommodate.bmp,.eps,.gif,.jpg,.tif,.wmf, and.wpg file types. 1. On the TI InterActive! toolbar, click the New button a new, blank document. to start
2. On the TI InterActive! menu bar, click Insert 8 Picture. If necessary, navigate to the folder containing the image you want to insert. 3. Click the file name, and then click the Open button to insert the image in the document.

Definitions

Document A TI InterActive! file that contains text, data, and interactive objects that can be saved, printed, or e-mailed. Object A specific non-text item in the document that can be moved, edited, and updated. TI InterActive! objects include the Math Box, Graph, List Editor, Spreadsheet, etc. Interactive objects Refers to the fact that most TI InterActive! objects share data so that updating one object may automatically cause subsequent objects to be updated. Integrated math system The math system contains key tools and capabilities that work together dynamically so that the use of multiple programs may be unnecessary.
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Inserting objects

A TI InterActive! document is composed of text and objects. Each object has unique functionality. For example, to perform a calculation, select Insert 8 Math Box and enter an expression into the object (Math Box) that is created. Press the Enter key, which in this case, causes the expression to be evaluated. Use the Insert menu or the TI InterActive! toolbar to insert objects into the document. A description of each object follows.
Object Math Box Graph Description Perform calculations and evaluate expressions. Graph rectangular, polar, and parametric functions; plot lists. Perform numerical evaluations of functions. Create and edit lists (similar to lists on the device). Create and edit matrices. Compute values in a spreadsheet. Calculate a statistics regression of a data set.
Table List Matrix Spreadsheet Stat Calculation Tool Stat Tests & Intervals Tool Slider Control Hyperlink Page Break Math Section Break Screen Capture
Perform statistical tests and intervals.
Insert a slider that lets you change variable values. Insert a hyperlink to a Web address. Insert a page break. Reset all variables for the section following the break. Insert a snapshot from an attached, supported device such as a TI-83 or TI-83 Plus. Insert images in various formats. Insert objects external to TI InterActive! such as Microsoft Excel, video clips, etc.

Picture Object

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Saving objects

Objects can be saved to the document to preserve their characteristics at any time. In this way, the saved information may be modified and updated to facilitate mathematical exploration. Some objects, such as the Math Box, are automatically saved to the document upon entering information. Other objects, such as the graph and list editors, require you to specifically save the information to the document. Look for the Save To Document item under the File menu in each component. A corresponding icon is also available. The icon is usually positioned in the leftmost position of the toolbar for the various object editors. is the Save To For example, Document icon for the List Editor. You might want to open an object so you can view or change the contents of the object. There are three ways to open an object that has been saved to a document.

Opening objects

Using the mouse, simply point to the object and then double click. Using the mouse, point to the object and single click. Then go to the menu and select Edit 8 Object 8 Open/Activate. Using the mouse, point to the object and then right click. A menu appears as shown below. Click on Open/Activate.
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Resizing objects

There are two ways to resize an object.
To resize an object that has been saved to the document, select the object with a right mouse click, select Format from the right-click menu, and change the resize settings as desired. Select the object and drag the resize handles to an appropriate size. Resize handles are the small squares located on the selection outline. In the example below, the diagonal arrow cursor next to the 6 indicates that the list object can be resized by dragging the mouse.
TIP: This method is especially useful for resizing list and spreadsheet objects.

Resize handle

Resize cursor

Moving objects

TIP: Use View 8 Nonprinting Characters, which displays line breaks as , to view the lines in a document.
To move an object, point to the object with your mouse and drag it to the new location. If the object does not drop at the location you want, it may be because there isnt an empty space or sufficient room. Since objects are inserted into the document as characters, there must be an empty space with sufficient room in which to place the object. Empty spaces are found next to existing objects or text and on empty lines. Sometimes it may appear that there is an empty line at the end of the document when there is not. There are two ways to delete objects that have been inserted in a TI InterActive! document.

Deleting objects

Point to the object using the mouse and single click. Then press the Delete key on the computer keyboard. For objects that have been inserted as inline-with-text objects (see next page), position the cursor to the right of the object and press the Backspace key on the computer keyboard.
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Using floating objects

TIP: The Edit 8 Object menu is also available via a right-mouse-click on the object.
The default for TI InterActive! is to create objects as inline-with-text objects. To place objects precisely in the document, convert them to floating objects. To convert objects to floating objects, select the object and then select one of the Edit 8 Object menu items.
Inline with text Causes the object to float in line with the text. Floating with text around Causes the object to float on the page with text or other inline objects flowing around it. Floating with text top & bottom Causes the object to float on the page with text or another inline object above and below it.

Inline with text

Floating with text around
Floating with text top & bottom
To move a floating object, drag the object with the mouse to the desired location. For additional control, select the object and use the arrow keys on the computer keyboard to position the object on the page. If two or more objects are floating objects, they can be placed adjacent to each other or overlapping. Once an object is changed to floating and placed in the document, it does not change its position unless you move it.
TII_GettingStarted.doc Getting Started with TI InterActive! Karen Davis Revised: 8/22/03 12:20 PM Printed: 8/25/03 8:04 AM Page 54 of 64

Math updates

The TI InterActive! math system is dynamic and performs updates of all variables whenever a new object is defined, modified, or moved. This feature enables new ways in which to illustrate ideas and concepts. It may also require some experience in order to know what to expect. Each object has an evaluation point that determines when its information is available for evaluation by the math system. Evaluations occur in a specific order.
Objects whose evaluation point appears above or to the left of other objects evaluation points are evaluated first. Subsequent objects are evaluated in this spatial order until all objects in the document are evaluated.
This evaluation occurs many times during the course of creating or editing a document. The example below illustrates the importance of the math evaluation order.

TI-Navigator Software Tour
Collecting Equations Using TI InterActive!
Overview This tour details collecting equations from class using TI InterActive!.
1. Launch the TI-Navigator Software
Click Start > Programs > TI Tools > TI-Navigator > TI-Navigator. The TI-Navigator computer home screen opens.

2. Start a Class

Assure that your TI-Navigator network hardware is connected and powered and calculators containing the necessary apps are connected. Choose a Class to begin in the Current Class selector and click Begin Class.
2006 Texas Instruments Incorporated
2. Student Enter Equations on their Device
Using the Y= functionality of the calculator have the students enter an equation for Y1. Student inputs are shown using the screen capture functionality of TI-Navigator.
3. Launch the TI InterActive! software
Click Start > Programs > TI InterActive! > TI InterActive! The TI InterActive! Software opens.

4. Open the Graph Window

Select the Graph Icon The Graph and Functions dialog will open
4. Select Equations to Collect
From the Graph Window select File > Import Equations/Functions > from Class
Select Equations to import and click Import.
The Device Login Required Check box, does not affect the import of the file. This box only applies to TI-Navigator 1.0 software.
The TI-NavigatorTM External Request dialog box will open. Click OK.
The External Request indicator will be displayed in the TI-Navigator home screen and the Collect Action will be displayed in the Class Record.
D. When the file has been collected from all of the students who are logged in, click the Stop button in External Request. The collected equations will open in TI InterActive!.