We investigated how two didactical tools assist high school students in constructing knowledge about convergence and limits. The first tool is manual plotting of the terms of selected sequences, and the second, a technological applet. Student pairs worked in an interview setting on an activity designed for the purpose of this research. The…

Past work suggests that children have an overly rosy view of rich people that stays consistent across childhood. However, adults do not show explicit pro-rich biases and even hold negative stereotypes against the rich (e.g., thinking that rich people are cold and greedy). When does this developmental shift occur, and when do children develop more…

For teachers to provide students with meaningful instruction in area measurement, teachers need robust understandings of area. Here, I describe two cycles of a "lesson experiment" used to investigate prospective teachers' understandings of area units in an undergraduate mathematics class. For each cycle, I collected and analyzed the…

The study using quasi experimental design involving 160 pre-university students, randomly assigned into experimental (n=80) and control groups (n=80), revealed science writing heuristics approach improved pre-university students' understanding of energy transfer in ecosystems and ability to produce quality arguments. After controlling the pretest…

The Richard Taylor Primary School in Harrogate, North Yorkshire is committed to a focus on a whole-school vision to teach every child the wisdom, knowledge and skills to be a creative life-long learner, enabling them to shape their future. In so doing, they pride themselves on widening children's science capital and experience. Their recent…

Background: To understand how the human brain organises the information, how prototypes are handled in the categorisation system, researchers have pointed out that there may be a relationship between visual perception and concept acquisition. Aim: This study was conducted to examine the effect of a concept education programme, developed on the…

This research aims to analyse the progression of 13-14 year-old students' ideas regarding the concept of energy transfer by means of heat in three biological mechanisms of thermal regulation. The outputs of 270 students, grouped in 77 cooperative groups, are analysed by comparing their explanations before and after conducting an experimental…

Here, we present a 3D printed experimental apparatus that students can use to acquire interference and diffraction quantitative data from light passing through a single or double-slit experiment. We built a linear screw stage with a multiturn potentiometer connected to its leadscrew as a position sensor. Using an Arduino, we collected light…

In place of a traditional Advanced Placement Chemistry class at the high school where I teach, I have recently developed and implemented a year-long, interdisciplinary curriculum that presents typical inorganic chemistry topics in the context of their relevant applications in archeology, art history, studio art, and the investigation,…

Biological examples have been used to increase innovation in design activities and design education. And biologically inspired design has been studied in mechanical engineering using biological functions and principles as source domains. However, there were few studies regarding shape-based biological design in industrial design; furthermore, the…

This research with middle school students from Kentucky (KY) and Nevada (NV) provides a snapshot of students' spatial-scientific understandings as we explored how well students understand lunar-related content, both spatially and scientifically, after receiving instruction with similar curricular Earth-Space content. Utilizing a lens of spatial…

A Concept Inventory (CI) is an assessment to measure student conceptual understanding of a particular topic. This article presents the results of a CI for basic data structures (BDSI) that has been previously shown to have strong evidence for validity. The goal of this work is to help researchers or instructors who administer the BDSI in their own…

This work presents an immersive molecular simulation tool (Manta) based on virtual reality technology, which enables students to explore "real" molecular structures and chemical reactions on-the-fly. Manta can work as a virtual classroom and even a playground for chemistry education, where students learn the progress of chemical…

Purpose: The purpose of this paper is to present an exploratory analysis of campus community member (i.e. students, faculty, staff) definitions of sustainability, their perceptions of select elements of sustainability culture and the relationship between the two. Design/methodology/approach: Researchers implemented a cross-sectional design where…

Teachers are encouraged to connect mathematic instruction to the real-world by posing tasks that are situated in rich, relevant contexts, but research has found that many teachers integrate contextual problems (CPs) as motivators rather than as supports for conceptual development. To provide insight into how teachers' conceptions about CPs shift…