This study estimated the amount of time required to teach standards at four grade levels (K-2, 3-5, 6-8, and 9-12) as compared to the time available for instruction. Teachers from four districts in Wyoming, Colorado, and North Dakota made three types of judgments regarding each benchmark within a standard: amount of time needed to teach a given benchmark to an average class of students at the grade level they taught, extent to which they agreed that the benchmark was important for students to know or do, and extent to which they agreed that the benchmark was appropriate for students in this grade to know or do prior to or during this grade level. Survey data indicated that an average of 1,100 hours of instructional time were needed at each grade level to address the standards in four domains (language arts, civics, mathematics, and science), which translated to approximately one-and-one-half times the instructional time allotted to teach just the basics in the four domains. Four appendixes contain statistics on participating teachers, survey instruments and forms, data on time estimates for teaching standards in the four domains, and teachers' ratings of importance and appropriateness of benchmarks. (Contains 13 references.) (SM)