What is the difference between curriculum innovation and curriculum change?
With curriculum innovation, you would be teaching the subject in a new way, perhaps connected with other activities. For example, if you are teaching about a certain book, like To Kill A Mockingbird, you might have the students learn about the 1950s, about lifestyles of blacks and whites in that particular town, what was going on during that time in the government. If it hasn't been done before, it might be useful to include an simulation of some experience, bring in someone who lived in those times--an experience that will transform the knowledge that the students have.
A change in curriculum will affect the subjects being taught. An alternative book, like A Time To Kill would be required reading instead. To Kill A Mockingbird might be moved to a reading list for juniors from the freshman year or to the curriculum of another class, such as history.