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Nawani, Jigna; Rixius, Julia; Neuhaus, Birgit J. – International Journal of Science Education, 2016
Empirical analysis of secondary biology classrooms revealed that, on average, 68% of teaching time in Germany revolved around processing tasks. Quality of instruction can thus be assessed by analyzing the quality of tasks used in classroom discourse. This quasi-experimental study analyzed how teachers used tasks in 38 videotaped biology lessons…
Descriptors: Biology, Video Technology, Concept Mapping, Foreign Countries
Mullis, Ina V. S., Ed.; Martin, Michael O., Ed. – International Association for the Evaluation of Educational Achievement, 2013
Now entering into its 20th year of data collection, Trends in International Mathematics and Science Study, (TIMSS) is an international assessment of mathematics and science at the fourth and eighth grades. TIMSS 2015 is the most recent in the TIMSS series, which began with the first assessments in 1995 and has continued every four years--1999,…
Descriptors: Mathematics Achievement, Educational Assessment, Student Evaluation, Grade 4