Currently, many academic institutions are using one or more variations of online modalities due to the Covid-19 pandemic, and science educators face a unique challenge with distance-learning laboratories. Many resources to engage students in virtual, interactive laboratory activities exist, but we found that high costs and/or overlooked content left gaps for several topics typically taught in a general, introductory biology course for undergraduate biology majors (e.g., organismal biology). Additionally, resources for an online lab must be identified and curated from multiple sources, requiring intense demands on the instructors’ time. To meet this need and to overcome the financial burden of high-cost lab manuals or software, we developed, piloted, and revised a series of online general biology lab exercises. We have published these exercises as an Open Educational Resource (OER) digital laboratory manual under the Creative Commons License Agreement, and they are accessible online via Manifold, Creative Commons, and the CUNY Academic Works portal.
This two-part assignment introduces students to spectrogram reading by asking them (1) to explore a set of spectrograms representing the days of the week, and then (2) record their own spectrogram and add a picture of it to a common "Mystery Spectrograms" folder for use in a subsequent assignment (and also in classroom activities).
NOTE: by the time this assignment is introduced, the students have already learned how to record themselves and save sound files using the Praat software for acoustic analysis. If they are not familiar with the procedure, this tutorial will help:
Making a recording in PRAAT
This assignment is asking students to collaboratively create a database of "good" and "bad" voices for subsequent analysis.
This assignment is asking students to collaboratively create a database with videos illustrating differences in the speech production of young children compared to that of adults.