The effect of two science programs (ess and laidlaw) on student classification skills, science achievement, and attitudes

 

作者: Eugenia Poporad Vanek,   John J. Montean,  

 

期刊: Journal of Research in Science Teaching  （WILEY Available online 1977）
卷期: Volume 14, issue 1  

页码: 57-62

 

ISSN:0022-4308

 

年代: 1977

 

DOI:10.1002/tea.3660140110

 

出版商: Wiley Subscription Services, Inc., A Wiley Company

 

数据来源: WILEY

 

 

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