The computer tells you a straight object or a circle is highlighted by putting little black squares on the object. This is your way of telling the computer, "I'm talking about this object." To highlight you must use the select tool.
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The most important thing in GSP is how to highlight objects. You can use the WORK menu to skip between any open sketches. Now your snowman sketch should be on the screen. If you go to the WORK menu you should see the names of two sketches at the bottom of the list: "Untitled #2" and "Snowman." Choose "Snowman." Let's check to make sure your snowman has the proper name. The computer calls each new sketch "Untitled. Choose "New Sketch" under the FILE menu.Ī new page appears with the title "Untitled #2". You now need a new, blank sketch to work with. If you want to change the size and style of your font use the options
ClickĪnd hold the mouse button while dragging diagonally. To put your name on the snowman,įind an empty place on your picture and move the labeling tool there. Whatever you want anywhere on the sketch. You haveĪlready seen what the labeling does.
Tool actually serves two purposes: labeling tool and text tool. Put your name on your snowman so I know who it belongs to. What is the label for your snowman's nose?Ĭlick on the nose again to make the label disappear. Move the hand close to the nose of your snowman. Choose the labeling toolįrom the toolbox on the left of the screen (it looks like a little hand). What the program labeled your snowman's nose. Every point, circle, and segment you haveĭrawn on your snowman has a label - even if you can't see it. Sometimes, however, the label is invisible. The Labeling Tool: When you draw anything GSP gives it a name called a label. What happens when you holdĭown the SHIFT key while drawing a segment? (Hint: move the endpoint around To draw a straight object,Ĭlick and hold the mouse button while dragging in the direction you want Off to the side of your snowman you are going to practice drawing one ofĮach of the three types of straight objects. In the spaces below, sketchĮach of the other tools and fill in their names. Hold the segment tool three other pictures appear. The Segment Tool: The segment tool allows you to draw straight objects. The Point Tool: Select the point tool - it looks like a dot. Can youįigure out how to use the translate tool to change the size of one of the circles? While the arrow is horizontal, hold the mouse button down andĪrrange the circles from smallest to largest so they look like a snowman. Try to avoid pointign at the point that is on the circle, but rather at some other Is an indication that it is pointing at some object already part of the sketch. To a circle until the arrow becomes horizontal.
Move onto the window and highlight a circle by moving the arrow close Can you guess what theyįor now, make sure that you are using the first one - the translate tool, with theĪrrow only. You press and hold this tool, three other pictures appear. This tool lets you drag (or translate) objects around in your sketch. The Select Tool: Choose the select tool (sometimes called the translate tool). Now draw three circles of different sizes that fit on the screen. Now practice erasing them by using Ctrl-Z or the Edit/Undo menu Practice making five or six circles of different sizes. Press and hold the mouse button while moving the mouse.Ī circle should appear. To draw a circle, move the mouse to the right The Circle Tool: Select the circle tool by using the mouse to position the arrow over theĬircle tool and click once. To the right of the tools is called the window. The five mostĬommonly used tools and their names are at the top of this page. The left on the sketch you will see six different squares with different Now you are looking at the basic GSP layout, called a sketch. Much as possible during these, and all the subsequent, exercises.Īs GSP starts up, you will see a picture with the words "The Geometer's These are theīasic elements for creating Sketchpad sketches. Perpendicular lines, parallel lines, and angle bisectors. Use some of the built-in constructions, particularly mid-points, Select one or more objects that have already been drawn and how to Presented here provides a brief introduction to Sketchpad. Lesson 1: Introduction to Geometer's SketchPadįor these exercises and investigations you will need to be able to use theīasic features of Sketchpad. Dynamic Geometry Workshop: Sketchpad Basics
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