Anonymized data from three questionnaires (initial, intermediate, and final) administered in agricultural engineering courses, covering knowledge of active learning methodologies (constructionism), practice environments, course planning, perceptions of the effectiveness of the applied active learning methodology, and confidence in facing challenges compared with previous courses. Data on age, gender, and origin (country, state, and city) were also collected. A subset of the data includes an anonymized horizontal alignment of part of the three questionnaires. Data composition: initial (114 instances; 26 attributes); intermediate (108; 19); final (103; 7); and horizontal (58; 52).