In our upper-level undergraduate laboratory course in organic chemistry we focus on a research-oriented task in a context-based and problem-based learning approach. The course starts with a preliminary training period where the students learn how to safely and independently perform synthesis and purification procedures and to operate the most…

The ancient Eratosthenes experiment concerning the earth's circumference offers the opportunity of an inquiry-based revival in today's science classrooms: A multinational European science education initiative (acronym: OSR) introduced this experiment as a hands-on basis to extract the required variables and to exchange results with classroom peers…

This report is one of a series of reports from a research project that focuses on the evaluation of laboratory work in secondary schools. The study focuses on 12 different laboratory tasks from the biology and chemistry courses of the Finnish comprehensive school. Secondary students (N=212) were observed during laboratory sessions and analysis of…