It looks like you're referring to a specific lesson, possibly from an educational curriculum, but without more context, it's difficult to provide detailed assistance related to "unit 3 lesson 9." If you could provide more information about the subject matter or the specific content you're looking to develop ideas for, I'd be more than happy to help! For instance, you might specify the topic of the lesson, key concepts, or any specific activities or exercises you need assistance with.
Developing ideas quick check unit 3 lesson 9
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