Think Like An Engineer
The students will become familiar with using one side of the Engineering Tr-Ruler.
You will need to print the paper out as-is. Do NOT scale to fit!
Let them rotate the ruler around and see if they can figure out (with the one free measurement) which one will make sense with the number.
The answer will be the 1"=40' scale.
Have them label each line for practice.
Feel Free to contact me with any questions!