Breadth and depth of curriculum are important for success in science teaching and learning. Curriculum theorists recommend less breadth and more depth than overloaded, superficial science curricula. This study investigates breadth and depth in the official biology syllabi in the seventh to eighth or ninth years in four diverse jurisdictions,…

This article discusses ways in which secondary polytechnical schools in Russia can acquaint pupils with the basic ideas of applied chemistry. Students must be guided so that they can choose a vocation in accordance with their personal inclinations and the needs of society. (Author/RM)

This article discusses ways for improving the curriculum and methods of Russian secondary polytechnical education in the teaching of physics. (Author/RM)