“systematic instruction: A teaching approach that identifies the specific steps needed to teach a given lesson. Systematic instruction includes clear objectives describing the content to be learned, detailed strategies to teach that content, and diagnostic assessments to determine whether students have mastered the content. See also Direct Instruction (DI).”
Excerpted from: Ravitch, Diane. EdSpeak: A Glossary of Education Terms, Phrases, Buzzwords, and Jargon. Alexandria, VA: ASCD, 2007.