Formative Evaluation: Instructional Module on Differential Calculus

This study determined the level of agreeable formative evaluation of constructed Instructional Material on differential calculus. The study employed the descriptive research design with questionnaire and interview questions as data gathering techniques including student's involvement index, communication index, and grade level readability. It utilized two mathematics professors and 70 students as target users from the Bachelor in Secondary Education major in mathematics.

The respondent-evaluators both faculty and students are strongly agree on the construction of the curriculum material in terms of objectives, accuracy of contents, clarity and appeal of the module. The level of originality and difficulty is average with high student's involvement index of 1.52, student feedback-based readability or communication index of 0.004 and level of readability is grade 11. There sult sets standard of excellence, and serves as instruments in the construction of a quality instructional module.