'Spiral curriculum' may be a term that you haven't heard before, but you certainly have learned from such a curriculum in your own student life. This lesson will provide a definition of spiral curriculum as well as some examples of the educational tool in action.
An Instructional Designer should conduct a needs research and analyze the needs of the targeted group. They have to determine whether these needs can be fulfilled by learning; and exactly how. They write they learning objectives and conduct research to see what the outcomes are.
This is post #3 in a series about how to become an instructional designer. Links to the rest of the series can be found at the end of this post. In my experience, most instructional designers were originally teachers or trainers who changed careers (just like I did).