Objective: To measure the interrater reliability of assessing the frequency of vegetable intake using mobile photos and descriptions. Design: Repeated measures design. Setting: A Midwestern university. Participants: Undergraduate students (N = 165). Measurable Outcome/Analysis: Number of times each of these vegetable subgroups were consumed daily:…

This study examined the effects of a mobile camera versus a stationary camera on scores for Rubrics 6-9 of the Elementary Education edTPA Task 2. Scores on these rubrics are primarily based on video evidence for a positive classroom environment, engaging students in learning, deepening student learning, and subject-specific pedagogy. Over two…

The current study examined why people take and delete photos with smartphone cameras, and participants' recollective experiences with saved and deleted photos. Two mixed-methods surveys asked undergraduates (Study 1) and an international online sample (Study 2) to review both recently taken and recently deleted photos from their smartphones' photo…

There are two aspects to photography: one is the eye that sees and composes the photo, and the other is the technical part of the camera. Due to the advanced technology in today's cameras, it's possible to take fantastic pictures without ever knowing anything about technical photographic concepts like depth of field or shutter speed. What you do…

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…

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…

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…

We propose a laboratory experiment on the quantitative study of the normal dispersion of light. A triangular isosceles prism made of flint glass TF3 is used as the object of study, and we describe a simple and affordable device for observing and photographing the dispersion spectrum on a smartphone. A possibility of the quantitative investigation…

We present a simple smartphone-based protocol for the estimation of the critical micelle concentration (CMC) of surfactants. The protocol is based on contact angle measurements from the smartphone-captured images of differently concentrated surfactant solution droplets mounted over a naturally existing or chemically synthesized superhydrophobic…

Drawing on transformative experience theory (Pugh, 2011) and in collaboration with high school science teachers, the authors developed an intervention (Seeing Science project) leveraging everyday mobile technology as a tool for integrating in-school and out-of-school experience. Students were instructed to take pictures when they noticed…

Fluorescence analysis is an important technology, which can obtain the concentration of target analytes through comparing the fluorescence intensity change of a fluorescent sensor. Generally, the fluorescence intensity is measured by a fluorometer. However, many undergraduates have no chance to operate such an expensive instrument. Besides, the…

This study investigated the prevalence of receiving sexts among adolescents and its relationship with depressive symptoms and self-esteem. A survey was administered to 728 high school students in Sweden in 2019 and 2020 (50.4% girls and 46.4% boys) using a cross-sectional design. Findings showed that significantly more boys (28.4%) than girls…

Photovoice involves respondents taking photographs of their environment to promote critical discussions and reflect on their experiences. Photovoice empowers marginalized communities and serves to reach policymakers. The Arizona Youth Identity Project (AZYIP) used photovoice with an innovative approach in a multisite research design with a large…

Traditional teaching methods struggle to convey three-dimensional concepts effectively. While 3D virtual models and virtual reality platforms offer a promising approach to teaching anatomy, their cost and specialized equipment pose limitations, especially in disadvantaged areas. A simpler alternative is to use virtual 3D models displayed on…

This research builds on the recently published paper (Garden, 2022c), which explored through interviews the use of iPads as cameras to enhance Forest School practice. Children's perspectives of the Forest School space captured what was important to them on camera (Garden, 2022c). Working with the same group of 32 Key Stage 2 children selected from…