This document discusses different types of curriculum pathways that can be used to individualize instruction for students, including instructional looping, pathway plans, project menus, challenge centers, and spin-offs. Pathway plans allow students to progress through skills at their own pace by providing alternative assignments called loop-outs for students who master skills early. Project menus, challenge centers, and spin-offs give students choice in completing extended assignments related to curriculum topics. The document provides guidelines for managing pathway plans and examples of how to structure alternative assignment types like challenge centers and spin-offs.