“…In some past studies, however, time devoted to instruction and learning, especially subject-specific instruction, seems to be positively related to student achievement in general and to the corresponding subject area in particular (Tedesco et al, 1979;Holsinger, 1982;Stevenson, 1983;OERI, 1986;Larsen, 1989;Smith, 2000). Even though instructional time is interwoven with the quality, timing and content of instruction, it is nevertheless a central component of school resources (Fisher & Berliner, 1985;Griffith et al, 1994;Lee, Smith & Croninger, 1997;Yair, 2000b).…”