ERIC Number: ED456494
Record Type: RIE
Publication Date: 2001-Feb-18
Serendipitous Policy Implications from Class-Size-Initiated Inquiry: IAQ?
Achilles, C. M.; Prout, Jean; Finn, J. D.; Bobbett, Gordon C.
The level of carbon dioxide in a classroom can have a significant negative effect on teaching and learning. Carbon dioxide (CO2) level is affected by class size and time of day. Six urban schools were studied to characterize the effects of these three factors on different class sizes. Carbon monoxide, CO2, temperature, and relative humidity readings were taken in 32 rooms in 6 buildings at approximately 90-minute intervals during the school day. Statistical analyses show a steady increase in CO2 levels with time. Class-size and time-of-day effects are evident. All classes started approximately the same (600-700 parts per million [PPM]), but by day's end, the average CO2 level for small classes was 2,836 PPM and the average for larger classes was 4,181 PPM. Study results show a direct relationship between the amount of cubic feet of air per student and classroom performance of both students and teachers. Given the deteriorating condition of many schools, the increasing numbers of students, more reports of "sick building syndrome," increasing child asthma, and claims of low test scores, these results are important in matters of school health policy and practice. This report concludes with tables and appendices providing raw data and supplementary information on indoor air quality (IAQ). (RT)
Publication Type: Numerical/Quantitative Data; Reports - Research; Speeches/Meeting Papers
Education Level: N/A
Sponsor: Spencer Foundation, Chicago, IL.
Authoring Institution: N/A
Note: Paper presented at the Annual Meeting of the American Association of School Administrators (133rd, Orlando, FL, February 16-18, 2001). Part of an Ed.D. Dissertation, Eastern Michigan University, by Jean Prout. Contains small print.