Developing numeracy through Cognitively Guided Instruction

Cognitively Guided Instruction provides a basis for understanding why a child is able to solve certain problems and not able to solve others. Within a problem-solving environment, interactive processes, involving students’ explanations and justifications of their thinking, support mathematical sense-making and meaning construction. Decisions about what to teach and when to teach it are based on teachers’ knowledge of their students’ understandings.