Open Access. Powered by Scholars. Published by Universities.®

Education Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 2 of 2

Full-Text Articles in Education

Modeling Potential Energy Of The Gaussian Gun, Leslie Atkins Elliott, André Bolliou, Hanna Irving, Douglas Jackson Nov 2019

Modeling Potential Energy Of The Gaussian Gun, Leslie Atkins Elliott, André Bolliou, Hanna Irving, Douglas Jackson

Curriculum, Instruction, and Foundational Studies Faculty Publications and Presentations

The Gaussian gun is an arrangement of magnets and ball bearings (pictured in Fig. 1) such that—when the leftmost ball is released—the rightmost ball is ejected at high speeds. The device has been described in several articles on energy education. The sudden appearance of kinetic energy offers a productive context for considering a range of challenging ideas: the often-counterintuitive relationship between force and potential energy, the escape velocity for attractive forces, why energy is required to break bonds, and why energy is released when bonds form. Beyond these ideas, it is also useful for motivating the representation of a potential …


The Seven Layers Of Complexity Of Recommender Systems For Children In Educational Contexts, Emiliana Murgia, Monica Landoni, Theo Huibers, Jerry Alan Fails, Maria Soledad Pera Jan 2019

The Seven Layers Of Complexity Of Recommender Systems For Children In Educational Contexts, Emiliana Murgia, Monica Landoni, Theo Huibers, Jerry Alan Fails, Maria Soledad Pera

Computer Science Faculty Publications and Presentations

Recommender systems (RS) in their majority focus on an average target user: adults. We argue that for non-traditional populations in specific contexts, the task is not as straightforward–we must look beyond existing recommendation algorithms, premises for interface design, and standard evaluation metrics and frameworks. We explore the complexity of RS in an educational context for which young children are the target audience. The aim of this position paper is to spell out, label, and organize the specific layers of complexity observed in this context.