Scratchpad | Texas Instruments TINSPIRECX manual

First Steps with TI-Nspire™

Tutorial 1: TI-Nspire documents

Scratchpad

Because there are some occasions when you really just want to carry out a quick calculation or draw a quick graph the TI-Nspire includes a feature called the Scratchpad. The scratchpad is designed for those casual throw-away calculations that need to be done from time to time, but are not worth keeping in a full document. To access the Scratchpad press ».

This opens a calculator page for performing quick calculations. Pressing » again swaps between the calculator and a graph scratchpad page. To close the Scratchpad simply press d.

Documents, Problems and Pages

In order to see what documents are pre-loaded on your handheld you need to use option 2 on the Home screen: My Documents…

Either use the touchpad to move the selector down to the 2: My Docs… option then press x to select it.

Or use the touchpad to move the cursor over option 2 and x Or just press 2 key to select option the 2nd option.

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 Examples:

Tip: You can use either x or · as

alternative key presses

Move the cursor to the folder entitled Examples.

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

Inside the Examples Folder on your handheld you will probably find a document entitled ’Getting Started 3_0’. Use ¤ to locate and · to open the document.

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© 2012 Texas Instruments Education Technology

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Texas Instruments TINSPIRECX manual Scratchpad, Documents, Problems and Pages

Contents

First Steps About this document Contents Appendix TI-Nspire CX Keypad Layout Nothing on the screen? TI-Nspire DocumentsMemory Battery Life Charging the handheld Home Screen First Steps with TI-Nspire Tutorial 1 TI-Nspire documents Documents, Problems and Pages Scratchpad Navigating Documents First Steps with TI-Nspire Tutorial 1 TI-Nspire documents Contextual Menus Check list of some key points in Tutorial Calculator Application Basic operations History Lesson Approximate Calculations Templates Menu of maths templates Effect of changed settings Document settings dialog boxGetting Set Ways to define variables Some AlgebraUse of function notation Statistical Distribution Tables Calculator MenuLists of random integers Variables Linked to Documents List of defined variables Making Notes Why use Notes?Various text formatting Instructions Recording results Format sub-menu Splitting the ScreenWays to split the screen You must press /e and then b Interactive Notes An inserted comment Use of proof template and symbolsMore Options from the Notes Menu Use of Q+A template Asking Questions Check list of some key points in Tutorial Graphing Functions GraphingGraphs & Geometry Two Views Graphing View Open-hand cursor Grab and Drag PracticeChanging the Axes Grabbed tick mark on the axes Editing, Deleting or Hiding a Function Zoom settings Grabbed-sheet iconChanging f2 in the function history Trace picks out significant points Tracing GraphsPoints and coordinates Points of intersection Analyse Graph Menu Coordinates and labelled points Manually Moving Graphs Using SlidersAlternative icons Transformed graph and equation Sequence Plotting Check list of some key points in Tutorial Two Parallel Lines GeometryView for Plane Geometry Drawing the base of the triangle Construct the Triangle What’s grabbable?Many options in the Construction menu Measurement menu Making MeasurementsVariables and Text Storing the measurement as a variable Ready to grab a and slide it Tidying Up and Using AttributesDynamic Changes Changing the attributes of the triangle Area is now locked Unlocked/Unpinned Points B and C. Try Moving point B Check list of some key points in Tutorial Lists & Spreadsheet Entering Data as Lists Conflict resolution Using FormulaeOne way to enter a formula Typical Spreadsheet Actions Function Tables Capturing DataHand-made function table Simple function table Options for function tables Graph and table side by side Frequency Charts One and Two Variable Statistics Charts with One VariableShoe Sizes and Hand Spans Comparing Boxplots Charts for Categorical DataPie Chart displaying categorical data Upper quartile displayed Fitting a Line by Hand and Eye Charts with Two VariablesReady to add a 2nd variable Getting the Stats Drawing the Regression LineCalculated regression line Statistics Calculations menu Sets of statistics Dragging on the ChartsWorking with Frequency Data Effect of moving a point from here … … to here Texas Instruments Education Technology Check list of some key points in Tutorial Draw and Measure a Circle Multiple RepresentationsMeasured circle Two Scatterplots Setting up a scatter plot Data capture is under waySpreadsheet for Data Capture Collecting Just a Little Data Linear relationship Go to Town with Data CollectionFit a Straight Line Moving a straight line by hand Not a linear relationship Regression Different Approach to ScatterplotsBasic quadratic ready for fitting… … and dragged into place