A hands-on experiment to obtain atomic and ionic radii with lumps of metal and ionic compounds is reported here. The experiment is performed with industrial-grade typical metals (iron, copper, aluminum, and lead) and single-crystal lumps of ionic compounds (sodium chloride, potassium chloride, and potassium bromide). Students measure the dimension…

There is an increasing emphasis on fundamental particles, including quarks, in the high school physics classroom. However, many teachers might not feel comfortable teaching particle physics because it is a highly abstract and complex topic, and there are few hands-on activities to help teachers bring it into the classroom. In 2010, a…

Using many-facets Rasch measurement, this study aimed to detect and measure disciplinary context effects on student hands-on performance in terms of scientific inquiry competence. In Shanghai, China, a total of 251 eighth graders, from five junior high schools, participated in this study. The partial credit Rasch model was applied to help…

The American Chemical Society's Chemistry Festivals, or "Festivales de Química," are community events where chemistry professionals, professors, teachers, and students use hands-on activities to engage the public and demonstrate how chemistry appears in our everyday life. The Chemistry Festival Organizers received training from the ACS,…

A new Curriculum and Assessment Policy Statement (CAPS) was introduced in South Africa in 2012 to, among others, drive a learner-centred and constructivist approach to practical work in the high school subject Physical Sciences. This study investigates teachers' concerns with the implementation of practical work in Physical Sciences. A survey of…

Pigments, dyes, and transition-metal compounds are made in courses across the undergraduate chemistry curriculum, but student characterization of these compounds' most striking features, their colors, seldom goes beyond verbal descriptions. Affordable, hand-held, fiber-optic reflectance spectrophotometers make it possible to advance students'…

A lot of the activities of daily living require energy, playing video games, making dinner, turning on the lights, using a computer, and perhaps even brushing our teeth requires energy. In this unit students discover what energy is, think about where it comes from, analyze options for making energy evaluate feasibility in different parts of the…

What's in Our Waters Jr. (WOW Jr.) is an environmental outreach program designed to teach fourth grade elementary students about watershed protection. This program is unique because of the partnership that brings together students, teachers, scientists, and water resource professionals to promote science education and environmental stewardship in…

Teachers' beliefs are strong predictors of their practices. They guide how teachers understand the implementation of effective inquiry-based lessons. The cross-case analysis indicated that the fundamental problems observed in many Thai pre-service science teachers' classroom inquiries stemmed from their beliefs on teaching science. Although the…

The recent COVID-19 pandemic required schools around the country to shut their doors to student and teacher learning, impacting both formal and informal education. STEM outreach programs scrambled to revise their programming to reach the "new normal" needs of teachers and students. STEM Outreach directors from Vanderbilt University and…

In September 2020, Irish schools reopened following their emergency closure due to the COVID-19 crisis. Measures were put in place to minimise the risk of transmission of the virus within schools and communities. However, these measures were likely to impact on teachers' capacity to facilitate learning in science, particularly the practical and…

This study explores how an afterschool science program for girls that uses a curriculum written by female scientists/science educators and highlights the contributions of women in science, technology, engineering, and mathematics (STEM) fields affects girls' perception of scientists, confidence in their science skills, belief in their ability to…

Food security is one of the most pressing concerns of our times. Despite the vast opportunities, there is a shortage of skilled professionals in the food, agriculture, and plant sciences. Although most programs focused on addressing this concern have targeted students, we have often overlooked another critical group--the teachers. To address this…

This paper shares findings from the first of its kind quasi-experimental mixed methods study exploring the potential impacts on teacher instruction through engagement with making and e-textiles. Because engagement in hands-on inquiry has demonstrated strong promise for increasing student interest and engagement in STEM careers, finding curricular…

We developed a comprehensive training module for the undergraduates majoring in chemical education with a simple microfluidic experiment. The students were required to read a scientific reference offered by the instructor, then design and implement a microfluidic experiment for real sample analysis by making some modifications to the method…