In this paper, we present a simulation of artificial selection of maize that can be used as a bridging case for the subsequent introduction of natural selection in school. The proposed simulation takes up essential biological elements but also has a cultural meaning for the inhabitants of some regions of Latin America. After implementing a test of…

Genetics is an area that is increasingly important in people's daily lives. Despite this, its teaching/learning is among the most challenging topics in biology. Several instruments were created over a number of years to ascertain the quality of teaching and learning genetics. In our study, we created a specific instrument to investigate Mendelian…

Many physics projects recently designed for high school teachers use Arduino as the main tool for managing sensors and data acquisition. This is a low-cost integrated development environment programmed with a simplified version of the C++ language. In comparison, the Raspberry Pi 3 platform, which also allows for the design of physics projects,…

This work aims to evaluate the evolution of chemical bonding concepts of high school students at public schools in southern Brazil. For this, we built the epistemological profile of each student who took part in a teaching-learning sequence (TLS) about this topic, based on the foundations of Bachelard's theory. Following the principles of the…

Students' scientific thinking skills can be empowered by implementing certain learning models in which they are given opportunities to perform some scientific activities. This study aims at investigating: (1) effect of guided inquiry learning model on scientific thinking skills; (2) effect of different types of scientific activities on scientific…

The aim of this study is to examine how the nature of science dimensions are represented in the secondary school 5th, 6th, 7th, and 8th grade science textbooks of the last twenty years. It is also within the scope of the research to investigate how these dimensions in the textbooks changed during the twenty years. The document analysis method was…

Student underperformance in the sciences is a problem experienced throughout the Isles of the Sea, a pseudonym for the country where this study took place. As schools are sometimes said to be a microcosm of communities, the issue of underperformance in science was evident in the school system studied, particularly in biology. This system…

There are many reasons students fail to achieve in STEM related fields post high school. For example, students may spend too much time receiving teacher centered lessons that focus primarily on vocabulary building and concept recognition. These lessons may not necessarily promote understanding or encourage students to learn other skills than…

Secondary school administrators play a vital role as instructional leaders, specifically those that are aimed at improving students' learning of science content (Hill & Grossman, 2013). Unfortunately, administrators rarely have a background in science (Halverson et al., 2011). Little is known about an administrator's knowledge of science…

Many educational interventions encourage parents to engage in their child's education as if parental time and attention is limitless. Sadly, though, it is not. Successfully encouraging certain parental investments may crowd out other productive behaviors. A randomized field experiment (N = 2,212) assessed the impact of an intervention in which…

In this work three examples of textbook circuits (resistor-capacitor, resistor-inductor and resistor-inductor-capacitor) have been modeled by employing the Euler method for the approximate solution of differential equations using algorithms implemented in the "Python" programming language. The aim of this work was to demonstrate how…

The importance of learning "chemical ways of thinking" is widely recognized. Various frameworks have been developed to address the essence of chemistry and chemical thinking. However, very few studies have focused on how chemical ways of thinking can be defined. To elaborate chemical ways of thinking, this paper draws on scientific…

The manufacture of metal alloys is ubiquitous, yet infrequently discussed in high school coursework as concepts related to them are often too complex or abstract for beginning science students. However, earlier introduction to metallurgy in classroom settings could promote interest in practical applications of chemistry, physics, and geology due…

In this study, it was aimed to determine the students' conceptual understanding and misconceptions about the concepts in the 8th grade Matter and Properties unit. Students (n = 180) of two middle schools in Istanbul Province participated in the study. The qualitative research method was used to determine students' conceptual understanding. A…

In Vietnam, there are currently stable and comprehensive innovations in the field of education. Educational scientists have shifted from knowledge-focused teaching to competency teaching. Since then, there have been more new research directions in teaching than in the past, such as integrated teaching, practical application of mathematics and STEM…