Teachers should provide data on the progress of students and materials. Teachers are best placed to judge the quality of materials, the depth to which the topics have been or will be dealt with, and the sequencing of the topics. They document their experiences and those of the learners. Teachers also need to have skills for observing and documenting their observations, constructing appropriate tests and examinations, and systematically reporting their findings.

Curriculum development committees must research effective practices to support school environments that offer rich and varied learning experiences. They must review policies and behaviors that foster community involvement and equitable opportunities for all.

D.K. Wheeler developed a cyclic model in reaction to criticism leveled at Ralph Tyler’s model. The latter was seen as being too simplistic and vertical. By being vertical, it did not recognize the relationship between various curriculum elements. His cyclic proposal was therefore aimed at highlighting the interrelatedness of the various curriculum elements. It also emphasizes the need to use feedback from evaluation in redefining the goals and objectives of the curriculum.