International researchers put to evidence a worrying decrease in science disciplines' role in many countries, especially in the European Community and a poor quality in scientific competences, as issues of TIMMS (trends in international mathematics and science study) and PISA (programme for international student assessment) have proved, together…

This chapter focuses on the instruction of diverse students in mainstream classrooms. The first part summarizes academic achievement of diverse students from different ethnicity, gender, language and social class. The second part discusses the characteristics of different diverse instruction. The third part suggests specific instructional…