A two-week summer camp for high school students focused on sustainable polymers was developed and implemented. Students took part in experiments and interactive lessons that demonstrate polymer chemistry fundamentals alongside associated sustainability challenges and opportunities. For example, polymer concepts related to chemical properties…

An easily constructed and inexpensive polarimeter with an optical rotation angle resolution of about 0.5° is presented. It is made from small pieces of polarizing film, 2 LEDs, a protractor, and a few wires, all held in place with plastic interlocking toy bricks, such as Lego bricks. The instrument was used to demonstrate the optical rotation of…

Secondary science education plays a key role in students' process to become scientifically literate citizens. However, teaching students to acquire the necessary skills and knowledge to deal with complex societal issues is challenging. This paper reports about a study in which Scrum -- a methodology to manage complex projects -- was implemented in…

Students often need to obtain, organize, clean, and analyze data in order to draw conclusions about a particular phenomenon (e.g., why tidal heights change). When conducting a science investigation in biology, chemistry, physics, or Earth science, data can be collected by the student or can be provided to them via secondary data sets. This article…

New notions of science teaching and learning provide challenges for designing and using classroom assessment. Existing assessments are not effective in assessing and supporting desired science learning because they are not designed to capture and aid such learning (NRC 2014; Pellegrino 2013). In addition, it is important to evaluate effectiveness…

Science explanation videos, especially online ones, have become popular. They cover nearly all topics from school science curricula. Teachers use them in a flipped classroom. Students watch them also in their leisure time. However, there is a lack of research on guidelines that effective science explanation videos should follow. The research on…

In order to investigate students' misunderstandings of potential wells and tunneling, a conceptual knowledge test was administered to Dutch secondary school students after they were taught about quantum mechanics. A frequency analysis of responses to the multiple choice questions (n = 98) and coding of the responses to the open-ended questions and…

Following on earlier examinations of biology high school textbooks' handling of race, this study examines eleven biology textbooks, intended for US high school use and published between 2014 and 2019. It offers a close reading of these textbooks' treatment of four topics that have been associated with race: genetic disorders, human origins, skin…

The present study ascertains the effectiveness of the Think-Pair-Share (TPS) Cooperative Learning Model over the lecture-based conventional teaching of Environmental-Science (EVS) on a sample of 78 students at the secondary level. Pre-test-Post-test Intact group design was adopted for this purpose. TPS Cooperative learning Instructions were…

The interdisciplinary subject of agricultural biochemistry can provide an abundance of didactic opportunities for educators teaching biochemistry and molecular biology in secondary-level science courses. This is especially true in present times when virtual-learning strategies supersede in-person instruction and contemporary approaches are needed…

An introduction to the Quantum Chemistry Package (QCP), implemented in the computer algebra system Maple, is presented. The QCP combines sophisticated electronic structure methods and Maple's easy-to-use graphical interface to enable computation and visualization of the electronic energies and properties of molecules. Here we describe how the QCP…

This paper demonstrated a simple experiment for determining the coefficient of rolling friction of a hollow cylinder rolling on a curved track using a smartphone's sensors. We studied theoretically and experimentally the rolling motion of a hollow cylinder uncovered and covered with various materials (synthetic leather and sponge sheets). The…

Background: In England, practical work is a major part of secondary school science and yet little research has examined students' attitudes specifically to practical work. Purpose: To examine students' attitudes to practical work in biology chemistry and physics in secondary schools in England. Sample: The study involved 607 students from Year 7…

In this brief experiment, students create a superhydrophobic surface as an application of polar--nonpolar interactions and redox chemistry. Half of a zincgalvanized steel strip is coated in copper nanoparticles through electroless deposition. A layer of nonpolar octadecanethiol is added to half of that copper surface. Students classify the three…

The purpose of this study was to examine the views of secondary school science teachers regarding the inclusion of socio-scientific issues (SSI) in the curriculum, and the factors that may facilitate or impede their inclusion. A survey administered to 130 science teachers of different background and experiences. The findings revealed that science…