Provide "acknowledged body of knowledge" related to the concept. Emphasize the most significant aspects of the concept in an organized, organic manner. Present information sequentially so students see continuity. Draw attention to important, discrete details; don't swamp students with myriad facts.

Teach algorithm of borrowing, regrouping

Objective: To teach the algorithm of borrowing/regrouping in subtraction.

Activity: Teacher lectures using overhead projector and chalkboard. Teacher facilitates understanding of the student's textbook explanation of the concept and algorithm.

Assessment: Subtracting three of four problems correctly on paper using the algorithm for borrowing/regrouping.