This document contains two parts of a training module on differentiating instruction. [1] The first part lists different strategies for differentiating instruction, such as giving students choice in assignments, varying grouping methods, providing independent study opportunities, and designing tiered activities. [2] The second part lists common reasons teachers give for finding it difficult to differentiate, such as needing to cover the same material for all students, having standardized tests, lack of planning time, large class sizes, limited resources, and perceptions that differentiation won't prepare students or be accepted. [3] The document provides information to help teachers reflect on their instructional methods and challenges to differentiating.