- Check dispersal list from Friday blog entry
- Go to your specified class with a netbook & math textbook
- No switching classes - teachers have link to blog and are expecting you
- Complete the following task using Geometer's Sketchpad and following these instructions carefully:
- Select Graph
- Grid Form
- Rectangular Grid
- Graph
- Plot Points
- (-4,0) Plot
- (0,0) Plot
- (-4,7) Plot
- (0,7) Plot
- Done
- Connect points with Segment Straightedge Tool
- Back to Arrow Tool
- Right click on each point and select Coordinates to label.
- Right click on any 1 point of rectangle and select Mark Center (this will be the point around which you will rotate rectangle ABCD)
- Back to Arrow Tool to highlight each point and line segment.
- Choose Transform from top menu.
- Choose rotate. Write 180 degrees.
- Right click on each point and select Coordinates to label rotated rectangle. Choose different color for A'B'C'D'.
- Now, take Arrow Tool to center/origin. Right click on (0,0) and Mark Center (this will be the point around which you will rotate starting rectangle ABCD).
- Follow above steps again rotating 270 degrees.
- New Sketch.
- Plot another shape of your choice.
- Follow same steps but when you select Transform choose Translate and slide your shape (-4,5). Plot new coordinates.
- New Sketch
- Plot another shape of your choice.
- Follow same steps but when you select Transform choose Reflect and flip in y-axis and x-axis. Plot new coordinates.
Therefore, I want to see the following:
- 2 Rotations: one about a point on the shape and one about the origin/center (0,0).
- 1 Translation -4 horizontally, 5 vertically.
- 2 Reflections: one in x-axis and one in the y-axis
1 transformation on 1 grid.
Save each on USB stick or SD card and I will print.
Should you have difficulty with Geometer's Sketchpad, you are welcome to complete this task on graph paper near projector - again, 1 transformation per sheet of paper.
