An experiment was developed for a first year food chemistry laboratory course that demonstrates the influence of several aspects of polysacharide structure on the rate of amylase catalyzed hydrolysis. The experiment would be particularly well-suited to a first year chemistry course that was targeted at nonchemistry majors, such as health related…

This paper presents preparations, execution and reflection on results for the physics part of a CSI task for the European Union Science Olympiad 2010, taking place at the University of Gothenburg. The participants were required to make a graph of the cooling of a swede ("Brassica napus"), as a proxy for the cooling of a murder victim,…

This article focuses on the case study of the concept of covalent bonding for 10th grade pupils in France. On the basis of their conceptions and difficulties, didactical engineering has been established that should lead to an improvement in the understanding of this concept. After analyzing the pupils' difficulties, we reflected on the…

Inorganic Chemistry teaches students the concept that modifications to ligand structures, especially the donor properties, can have a drastic impact on the reactivity and stability of the metal complexes. Experiments described here reinforce this concept through the investigation of two tetradentate ligands derived from…

Temperature and heat are difficult concepts for children to grasp due to their abstractness. An image-to-writing approach, guided by the visualisation practices of scientists, was designed to engage elementary students with constructing images to represent their ideas about phenomena and translating these images into text using scientific…

There is widespread evidence showing that concept maps are effective for learning. However, little is known about the effects of various concept map activities. We conducted an experiment to examine the comparative effectiveness of three concept map activities: (1) translating a complete map to a paragraph format; (2) filling in concepts in a…

This study examined a case of GeoMapApp-based assessment to investigate a learning progression for middle school students' understanding of geoscience content and geocognition (spatial, temporal, and retrospective reasoning and system thinking). A 2-year GeoMapApp-based assessment process was administered along with a double-round of the construct…

In the era of universal and compulsory education, in which attention is paid to the ability to think scientifically, there should be no room for unscientific views. However, unscientific theories often appear in the media, and they find numerous supporters. Therefore, it was decided to investigate which of the common beliefs about the…

Until thirty-five years ago, climate change was almost exclusively a topic of domain scientists and deeply serious hobbyists. It was only discussed in science journals and at academic colloquia. Therefore, it should not be at all surprising that many fundamental questions persist about how to teach students about climate change science, including…

For a long time within the history of education, it has been assumed that science classrooms are homogeneous spaces, constituted with the prevailing conception that only scientific culture can be represented. At the same time, Latin America is characterized by being a region with enormous biological and cultural diversity, with an invaluable…

Learning analytics, referring to the measurement, collection, analysis, and reporting of data about learners and their contexts in order to optimize learning and the environments in which it occurs, is proving to be a powerful approach for understanding and improving science learning. However, few studies focused on leveraging learning analytics…

This study on the Estonian lower secondary (7-9th grade) science curricula, is seen as an important framework for educators preparing students as tomorrow's citizens able to reflect on sustainable energy development. As the curriculum is taken to be the major document allowing insights into Estonian educational standards, this study identifies…

The limited time allocation for lectures in the classroom is an obstacle to presenting student-centered learning. This is one of the factors that prospective physics teacher students experience conceptual difficulties, especially in crystal structure material. So the purpose of this study was to determine the effectiveness of the problem flipped…

The brain organizes somatosensory experience based on the body location from which it originated and the pathway by which in arrived. Here, I present a classroom discussion-based activity centered around the concept of a phantom limb to allow students to explore how cortical representation of sensory experience can be altered. The goal of the…

Consensus was reached on seven core concepts of physiology using the Delphi method, including "integration," outlined by the descriptor "cells, tissues, organs, and organ systems interact to create and sustain life." This core concept was unpacked by a team of 3 Australian physiology educators into hierarchical levels,…