海量图书期刊资源,随时随地畅享阅读乐趣
Reproductive Biology of Tropical Lowland Rain Forest Trees. II. Pollination SystemsK. S. Bawa, S. H. Bullock, D. R. Perry, R. E. Coville and M. H. Grayum · American Journal of Botany · 1985
Preliminary Report on the Flora Project of La Selva Field Station, Costa RicaBarry E. Hammel and Michael H. Grayum · Annals of the Missouri Botanical Garden · 1982
Lectotypification and Reinstatement of Stachytarpheta friedrichsthalii (Verbenaceae), with Notes on the Lectotypification of S. indicaBarry E. Hammel and Michael H. Grayum · Novon · 2011
Aegiphila brenesii, a New Name for the Long-lost (Right Before Our Eyes) Clerodendrum costaricense (Lamiaceae)Barry E. Hammel and Michael H. Grayum · Novon · 2011
A Good Teaching Technique: WebQuestsHalat, Erdogan · The Clearing House · 2008
Professionalism: Teachers Taking the ReinsHelterbran, Valeri R. · The Clearing House · 2008
Constructing a Model of Mathematical LiteracyPugalee, David K. · The Clearing House · 1999
Learning Multiplication: The Easy WayCaron, Thomas A. · The Clearing House · 2007
The School Dropout ProblemH. M. Berston · The Clearing House · 1960
Cultural Diversity || Enhancing Children's VocabulariesJohn Follman · The Clearing House · 1990
Are Standards Preventing Good Teaching?Berube, Clair · The Clearing House · 2004
Teaching Socialization through Science FictionJohn C. Reynolds · The Clearing House · 1983