This document discusses principles of curriculum and assessment design for schools. It outlines seven principles for curriculum design: balanced, rigorous, coherent, vertically integrated, appropriate, focused, and relevant. It argues the most important principle is appropriate, as curriculum should match students' developmental levels. The least important is focused/parsimonious, as not overloading students is less critical than other principles. The document also discusses different functions of assessment, including evaluating institutions, describing individuals, and supporting learning.