The original presentation is available online at the link on the last slide. With all the talk about "Standards" this is aimed at a US audience, but it's still a good introduction to Robert Marzano's ideas about how to clarify for yourself exactly what you want the students to know and be able to do.

1. Deconstructing Standards into Achievable Learning Targets [email_address]

8. Learning/Achievement Targets Statements of what we want students to learn and be able to do.

12. Classifying Targets

13. Once you’ve identified the overall type of STANDARD , you’ll have a better understanding of the likely TARGET TYPES