Instructional Time Spent on Science
These exhibits present principals’ and teachers’ reports about the instructional hours per year that were spent on science instruction. The principals provided the number of school days per year and the number of instructional hours per day, and the teachers provided the weekly amount of instruction in science. As explained in “About the Measure,” the data were combined to estimate yearly amounts of instructional time in science for each country. For countries teaching science as separate subjects at the eighth grade, the total included the amount of time spent on each individual science subject. As might be anticipated, these estimates vary somewhat from the levels of instructional time set as a matter of policy.