Mr. Falcicchio
Lab 1
Sketchpad Introduction
 Part 1 Lines, Rays, Planes
1. Construct Point A
2. Construct Point B
3. Select Point A and Point B
4. Select Construct -> Line
5. Construct Point C not on Line AB
6. Select Point B then Point C
7. Select Construct -> Ray
8. Construct Point D not on the ray.
9. Select C and D
10.Construct a Segment
11.Select Segment CD (just click the segment only, not endpoints)
12.Go to Measure-Length
13.Select point C and D alone.
14.Go to Measure-Distance
 WHAT IS THE DIFFERENCE between Step 12 and Step 14?
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15.Stretch Segment CD (Grab a point) so the length is 10 cm.
16.Create a Point E, so it lies on Segment CD. (Make sure Segment CD
lights up so you can place point on it) Move it so it is in the middle of
CD. Measure the distance from C to E to show it is in the middle.
17.Drag a Text Box and Write Your Name, Block, Date, and Lab 1 Part
1
18.Go to File-Print Preview-Fit To Page- Print
Mr. Falcicchio
Lab 1
 Part 2 Angles
1. Click File -> New Sketch
2. Construct Angle ABC. (Create Ray BA and Ray BC)
3. Select Points ABC, then Measure->Angle
4. Shrink the Angle so it is ACUTE
5. Construct Angle DEF
6. Measure Angle DEF.
7. Stretch the Angle so it is OBTUSE
8. What happens if you try to stretch angle DEF greater than 180?
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9. Construct Angle GHI
10.Measure the Angle GHI
11. Stretch Angle GHI so it is a RIGHT.
12. Drag a Text Box and Write Your Name, Block, Date, and Lab 1
Part2
13. Go to File, Print Preview, Fit To Page, Print
Mr. Falcicchio
Lab 1
 Part 3 Circles.
1. Create New Sketch
2. Create Segment AB.
3. Create Point C
4. Select Segment AB, point C. Construct ->Circle by Center and
Radius.
5. Stretch Segment AB. Watch Your Circle. What Happens?
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6. Drag a Text Box and Write Your Name, Block, Date, and Lab 1 Part
3
7. Go to File, Print Preview, Fit To Page, Print