1. © 2004 Programmed Instruction ­Students work through this Unit of Learning at their own pace and are tested at each step with a multiple choice question. ­This example is taken from the IMS Best Practice and Implementation Guide Version 1 (page 48).

2. © 2004 Programmed Instruction ­Narrative ­Students attempt each question in sequence ­When a wrong answer is selected, the system notifies the student to try again ­When the correct answer is selected, the student is able to move on to the next question ­IMS LD Properties ­When a question is answered correctly, the property for that question is changed ­This triggers the availability of the next question ­When a question is answered incorrectly, an error message is shown to the user

3. © 2004 Activity Diagram

4. © 2004

8. What aspects of IMS LD did we see? ­Properties ­Completion rules ­Conditions ­Showing and Hiding