1. Drafting Tool Practice

2. Compass Practice Get out a blank sheet of paper
Label the top “compass practice”
Fold it to divide it into 8 equal areas
Using the small compass, make the following circles in the top 4 squares:
1. D=.5 in 2. r=.5 in
3. D=1.25 in 4. r=.75 in
Using the large compass, make the following circles in the bottom 4 squares:
1. D=1.75 in 2. D=2 in
3. r=1.25 in 4. r=2 in 1 2 3 4 5 6 7 8

3. Divider Practice Work on the back of “compass practice”
Label the top “divider practice”
Using a triangle, draw a straight, horizontal line in the top left section
In the top right section, try to draw a line segment the same length at a 45° angle
Use your dividers and a scale to measure the difference. Circle the longer line.

4. Triangle Practice
Work on the back of “compass practice” and under “divider practice”
Get a t-square
Use your drafting tape to attach your paper to the table.
Using the t- square and your triangles ONLY, make the following angles that open to the right
1. 45° ° °
4. 120° 5. 75° °
Remember, there are 180° in a
semicircle

5. Adjustable Triangle Practice
Work on a new sheet of paper divided into 8ths
Get a t-square
Use your drafting tape to attach your paper to the table.
Using the t- square, your adjustable triangle, and one of your other triangles, make the following angle:
1. 78° ° ° °
5. 130° 6. 15° ° 8. 91°
Remember, there are 180° in a
semicircle

6. Scale practice Work on the back of your adjustable triangle practice
In the top left corner, use your Engineer’s Scale and a triangle to make a 2 inch vertical line.
Use the scale only to make small marks for the beginning and end of the line
Use your triangle as a straightedge
In the right corner, use your Architect’s Scale to make a 3 inch horizontal line

7. Eraser Shield practice
Work on the same sheet as your scale practice
In the next 2 empty boxes, use a pencil to make a solid rectangular shape.
Use your eraser shield to make all the sides of the second shape perfectly straight like example #1.
Then, use your eraser shield to create the figure in example #2.
example # example #2