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Online Writing Lab at Purdue University
Purdue University Owl: High Order Concerns (Ho Cs) for Business Writing
A great reference when writing business messages or letters. Discusses the most important issues involved in business writing and an organizational system for them.
Technovation
Curiosity Machine: Challenges: Make Drawings of Three Dimensional Objects
Using the Glass Box Theory, students will make scaled technical drawings of 3D objects. This site includes the challenge, tips, a lesson plan, and a place for students to document their engineering design process.