This document discusses curriculum evaluation, which refers to collecting information to make judgments about the effectiveness of an educational program in order to determine whether it should continue unchanged, be modified, or discontinued. The document outlines that curriculum evaluation has three main purposes: describing and judging a program, comparing student performance to objectives, and obtaining information for decision-making. It also distinguishes between formative evaluation, which collects information during instruction to improve it, and summative evaluation, which assesses the worth of a program at its end. Finally, the document notes that evaluation serves a range of stakeholders and helps ensure curriculum quality and updating over time.