Curated OER
Industrial Measurement: Using Calipers to Assess Acceptable Dimensions
Students accurately measure several dimensions of common objects using calipers. They determine whether a manufactured product meets correct specifications for length, width, height, depth and diameter.
Colonial Williamsburg Foundation
Colonial Williamsburg: Colonial Tools
Lists the tools used by colonial merchants and tradespeople. Each tool listed is linked to a description, many complete pictures.
Educaplus (Jesús Peñas Cano)
Educaplus: Calibre
Learn how to measure the inside diameter, outside diameter and the depth of different parts. This interactive activity shows you six different calipers. Once you understand the exercise, then you can test your knowledge with a quiz.
Other
Intersecting Convex Polygons the Algorithm
This site talks about how to check for the intersection of polygons. Computer programs calculating intersections are presented.