The aim of the present research was to explore the effect of the Common Knowledge Construction Model (CKCM)- oriented education on sixth grade students' views on the Nature of Science (NOS) and to compare it with the existing learning model (5Es learning model). The research was conducted with a total of 76 students (38 by 38--for experimental and…

In this paper we present a novel way to demonstrate the Hall effect and study some of its main properties using basic materials and easily obtainable measuring devices.

A spinning top or a spinning hard-boiled egg is fascinating to observe since both objects can remain upright for a relatively long time without falling over. If spun at sufficient speed on a horizontal surface, the spin axis rises to a vertical position and the bottom end tends to remain fixed in position on the surface. If the initial spin is…

Bill Robertson is the author of the NSTA Press book series, "Stop Faking It! Finally Understanding Science So You Can Teach It." In this month's issue, Robertson describes and explains the Heisenberg Uncertainty Principle. The Heisenberg Uncertainty Principle was discussed on "The Big Bang Theory," the lead character in…

Research in the field of physics teaching has revealed high school students' difficulties in establishing relations between kinematic equations and real movements. Moreover, there are well-known and significant challenges in their comprehension of graphic language content. Thus, this article explores a didactic activity which utilized robotics in…

The Next Generation Science Standards (NGSS) emphasize engaging students in science practices through which students can develop content, procedural, and epistemic knowledge of science. To accomplish this goal, science teachers must embed science content in authentic science practice. Successfully integrating content and practice will require…

This article explores the need to include the science capital and cultural capital of African Americans in science teaching and offers practical exemplars for inclusion in the K-12 science curriculum. The author discusses ideas in the evolution of culture that contribute to the science content and perspectives of current textbooks and their…

Authentic, "messy data" contain variability that comes from many sources, such as natural variation in nature, chance occurrences during research, and human error. It is this messiness that both deters potential users of authentic data and gives data the power to create unique learning opportunities that reveal the nature of science…

Charging and discharging processes of a capacitor through a resistor, as well as the concept of impedance in alternating current circuits, are topics covered in introductory physics courses. The experimental study of the charge and discharge of a capacitor through a resistor is a well-established lab exercise that is used to introduce concepts…

This article aims to introduce the lanthanides (also known as the lanthanoids) to teachers and their students. The lanthanides are not mere "footnotes" at the bottom of the periodic table but make up a group of interesting and unique metallic elements. They and their compounds have widespread technological applications that have become…

The use of [superscript 1]H NMR spectroscopy to analyze the number-average molecular weight of a methoxy poly(ethylene glycol) (MPEG) and an acetate derivative of this MPEG is described. These analyses illustrate NMR principles associated with the chemical shift differences of protons in different environments, NMR integration, and the effect of…

Small organic molecules offer a rich opportunity to discuss the interplay of chemical structure with properties such as the melting point and phenomena such as glass formation and can form the basis of fundamental considerations of structure-property relationships in macromolecules. Of particular importance are thermal transitions, specifically…

This article presents a unit of study in which students examine skeletons and draw conclusions from the evidence they find in a simulated mass grave. The activity involves the foundation of forensic anthropology--interpreting the structure of skeletal remains to determine sex, age, height, and possible cause of death. Working through a series of…

Skills in science, technology, engineering, and mathematics (STEM) are increasingly in demand. Theoretical knowledge and formulas alone are frequently not sufficient to understand complex phenomena. Simulations are a valuable tool to support the conceptual understanding by visualizing invisible processes. The constant interaction with the learning…

Gerard Leonard uncovers the living organic vision of Montessori scientific thought principles to ponder for our generation of Montessori: "To be ecoliterate is to understand the basic principles of ecology and to endeavor to live by them. Having a systems view of life, or what we would call in Montessori education, 'an understanding of the…