The presentations of evolutionary theory of 13 prominent secondary school biology textbooks (3 Chinese, 8 American, and 2 Soviet) were examined using the methods of content analysis. Pronounced differences in topic emphasis among the 13 textbooks and systematic trends between countries are discussed. (Author/ZWH)

Contrasts data gathered regarding how textbooks deal with natural selection and teacher's ability to explore pupils' ideas related to it with an approach seeking to develop the pupils' capacity to explain biological change using the model of natural selection. Results show the approach is often characterized by superficial handling of key ideas…

Elementary and junior high school science textbooks were analyzed for the presence of prerequisite topics on evolution (protoconcepts). Results indicated that coverage of evolutionary protoconcepts varies considerably among published textbooks. Recommendations for teacher analysis of textbooks are provided. (ZWH)