1. Graph Paper X, Y, Z and SIMPLE CNC PROGRAMMING Copyright © Texas Education Agency, 2012. All rights reserved.

2. 2 Objectives Explain: How a computer controlled machine operates. The relationship of x, y, z coordinates. How they are used to create a product on a CNC machine. Copyright © Texas Education Agency, 2012. All rights reserved.

3. 3 Instructional Aids Design 1 Design 2 Design 3 Model Rubric Copyright © Texas Education Agency, 2012. All rights reserved.

4. 4 Materials Needed Graph paper (8.5 x 11) Pencil Inch ruler.25 x 3 x 5 inch plastic (acrylic)** CNC mill or router** Copyright © Texas Education Agency, 2012. All rights reserved.

5. 5 Equipment Needed CAD software CAM sofware Copyright © Texas Education Agency, 2012. All rights reserved.

6. 6 Design 1 Copyright © Texas Education Agency, 2012. All rights reserved.

7. 7 Rubric for Grading Exceptional Above AverageAverage Below AverageUnacceptableComments Criteria20-1615-1110-65-10 Rectangle and labeling Rectangle is correct size and numbers are placed on lines correctly. Rectangle is correct, but numbers are not on lines. Rectangle is not the correct size and numbers are on lines as instructed. Rectangle is not correct and numbers are not on lines. Rectangle is not correct and no numbers are present on lines. Appropriate design and points on lines Lines are all straight and no curves are present. Points are on beginning and end of lines. Lines are correct, but the points are not on the beginning and ends of lines. Not all lines are straight, points are not correct on ends of lines. Curves are present and points are not on lines. Unacceptable lines and points. 50-4544-3534-2525-1010-0 X and Y coordinates X and Y pairs are accurate and there are no errors in the order of the X and Y coordinates. 1-2 errors with X and Y pairs. 3-4 errors with X and Y pairs. 5-6 errors with X and Y pairs. More than 6 errors with X and Y pairs. 10-98-76-54-32-0 Neatness and accuracy Paper is very clean, numbers are very legible and logically arranged. Paper is clean, numbers are legible, but not arranged in a logical order. Many erasures, numbers are sloppy and not in a logical order. Coordinates are all over the paper and numbers are sloppy and very hard to identify. Very sloppy work and numbers are illegible. Copyright © Texas Education Agency, 2012. All rights reserved.