Question

What are the requirements of a good speech introduction? Evaluate the following complete introduction to a classroom speech in light of those requirements. Be specific in your answer.

Youre nearly finished with the giant Lego sculpture that youve been building for weeks, when you discover that youre missing a crucial piece. You dont want to order a new piece and wait for it to come in the mail. And you certainly dont want to tear down what youve built and start over again from scratch.

But what if you could go to your computer, type a few commands, and make the missing piece yourself? With the technology being developed for 3-D printers, you can.

Today Id like to tell you how 3-D printing works, the kinds of objects 3-D printers can produce, and the advantages and disadvantages of 3-D printing technology.

Answer

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