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Full-Text Articles in Physical Sciences and Mathematics
Identifying Optimal Course Structures Using Topic Models, Tehut Tesfaye Biru
Identifying Optimal Course Structures Using Topic Models, Tehut Tesfaye Biru
Dartmouth College Undergraduate Theses
This research project investigates whether there exists an optimal way to structure topics in educational course content that results in higher levels of engagement among students. It is implemented by fitting topic models to transcripts of educational videos contained in the Khan Academy platform. The fitted models were used to extract topic trajectories across time for each video and subsequently clustered based on whether they have similar “shapes”. The differences in mean engagement metrics per cluster suggest that some course shapes are more palatable to students regardless of subject matter. Additionally, the topic trajectories suggest a constant progression of topics …
Master’S Project: Exploring And Supporting Social And Ecological Dimensions Of Pollinator Habitat Enhancement In Burlington, Vt, Victoria Hellwig
Master’S Project: Exploring And Supporting Social And Ecological Dimensions Of Pollinator Habitat Enhancement In Burlington, Vt, Victoria Hellwig
Rubenstein School Masters Project Publications
Urbanization and other manmade impacts threaten critical pollinator species like the bumblebee, whose populations are significantly affected by habitat loss. In response, activists in the City of Burlington are enhancing habitat to increase biodiversity through collaborative partnerships in urban green spaces. In an effort to explore and support pollinator habitat enhancement in Burlington, I examined social interactions involved in a group highly motivated to enhance habitat at Lakeview Cemetery and Champlain Elementary School, with an emphasis on power dynamics and place meanings of these sites. In conjunction with this exploration, I created landscape designs, planted a native habitat garden, and …