Background/Case Presentation: An 18-year-old female college student shared an electronic message with her friends in which she discussed plans to harm herself through the ingestion of a highly toxic substance. Concerned friends activated emergency healthcare resources, who were dispatched to the individual's residence. Based on the known toxicity…

Across the United States, a consensus has emerged around the need to limit youths' access to smartphones in schools. Manhattan Institute polling done in July 2024 revealed that 60% of likely voters nationwide are extremely or very worried about cellphone use in school. Despite today's divisive political landscape, 73% of voters agree that schools…

Risky play is climbing, high-speed activities, dangerous exploration, dangerous elements, rough and tumble, and disappearing experiences. There are three primary barriers to risky play: the introduction of electronics, building safer playgrounds in new urban-designed cities, and parent involvement in overscheduling activities have been hindering…

A new system for tracking a metal ball rolling on the slope of the touch panel of a tablet computer was developed. The widespread introduction of tablets in educational environments allows the use of a convenient dynamic measurement in schools.

A smartphone is a powerful learning aid in the hands of a large section of students around the world. The camera of the phone can be used for several learning purposes apart from its obvious purpose of photographing. If the focal length of the lens of the camera can be determined, several experiments in optics can be performed with it. In some…

With the development of digital technology, plentiful sensors are embedded in the smartphone, which makes it a valuable tool for teaching elementary experimental physics. For instance, the magnetic field sensor of the smartphone has been used to measure gravitational acceleration by measuring the magnetic pendulum's oscillation period. The…

Conventional mobile phone colorimetry usually utilizes the RGB color mode to measure concentration of solutions, but the paper entitled "Determining the Amount of Copper(II) Ions in a Solution Using a Smartphone" proposes the use of hue ("H") to measure the concentration. It is pointed out that the "H" value increases…

In this study, we propose a novel and direct method of determining the focal length of a converging or diverging lens using a smartphone. The standard optical sensor used in modern smartphone cameras is an active-pixel sensor called the complementary metal-oxide-semiconductor (CMOS). The CMOS is covered by an assembly of five to seven camera…

Many K-12 schools, including those in Manitoba, Canada, have implemented cell phone bans to reduce distractions in the classroom, but these measures often fail to improve student focus and can negatively impact learning, and school-community relationships. Instead of bans, schools can adopt balanced cell phone policies with designated usage times,…

Practical experiments enhance students' understanding of basic concepts and promote deep learning experiences in chemistry. The smartphone application of Lab4Chemistry was utilized to replace colorimeters with smartphone camera sensors. Low-cost and readily available materials, including anthocyanin (fresh red cabbage) and common kitchen…

The challenges faced by transition-age youth (TAY) with level one autism spectrum disorder (L1-ASD) during the transition to adulthood can be exacerbated by disability-related hurdles, particularly in employment and post-secondary education. Existing social skills training interventions for TAY with ASD often include building social narratives and…

Cost-effective and user-friendly, mobile phone-assisted methods have remained underutilized in qualitative social science research. The scarce methodological guidance, together with recruitment and ethical challenges, has arguably stifled advancements in this area. COVID-19 exposed the need to better equip researchers with the expertise and tools…

Lawmakers are debating a bill to add Wisconsin to the growing list of states banning K-12 students from using cell phones in schools during instructional time. Of the 309 districts and charter schools responding to a recent survey, most already restrict student cell phone usage to common areas, with smaller districts tending to favor more…

An inexpensive at-home quantitative analysis activity was developed for the determination of glucose in unknown samples using paper-based microfluidic devices. All of the materials and reagents for the activity fit in a small kit that was mailed to students. The only items students needed to supply were water and a smartphone. Microgram quantities…

Ever wonder how an astronaut's mass is measured in space? Of course, a weight scale is of no use, because the astronaut and the scale are in free fall. Measuring the period of a spring mass oscillator is one way to measure mass. In this article, we will demonstrate a method to measure mass using a smartphone, a rubber band, and an app called…