Study on influence of classroom environmental quality on learning efficiency in transition season in cold zone

To explore the primary and secondary factors of classroom environmental quality affecting students’ learning efficiency in the transition season in cold zone,combining human subjective perception with cognitive ability test,three-factor and three-level orthogonal experiments of temperature,CO2concentration,and O2concentration are designed in the simulated classroom environment of a university in Xi’an.The changes in subjects’ subjective evaluation of the environment,human physiological parameters,and learning efficiency under different operation conditions are studied.The results show that the primary and secondary factors affecting students’ subjective evaluation,physiological reaction,and learning efficiency are temperature,CO2concentration,and O2concentration.The best experimental condition S4(temperature 23 ℃,CO2volume fraction 600×10-6,O2mass fraction 24%) is obtained from nine operation conditions by the range analysis method,and its accuracy is verified by the analytic hierarchy process model.