The decimal and Arabic number systems as the "common tongue" of the factory.
Specific terminology for manufacturing components (lathes, bolts, chamfers, kerf).
The Order of Operations and how it prevents expensive scrap in multi-step part calculations.

Perform the four basic operations on whole numbers in the context of material length and quantity.

"Blueprint First" Application: Extract numerical data from technical drawings to find missing "overall" dimensions by adding or subtracting "step" dimensions.

Calculate the Perimeter of common stock shapes (rectangles, trapezoids) to determine material requirements.

The "Dimension Hunt": Successful completion of Multiple blueprint analyses, where students must calculate the missing dimensions when given various mechanical drawings of parts.