Three days into the academic year,
the COVID-19 pandemic abruptly
led to emergency remote teaching, ERT, of Chemical Experimentationa
revised alternative to the majors’ General Chemistry Laboratory
at the University of Costa Rica. The course was reoriented to support
students’ development of nontechnical experimentation skills
and scientific practices relevant to the conventional course. Assignments
ranged from problem-based projects to prescriptive online simulations,
included team and individual work, lasted one or several weeks, and
were hands-on or relied on computer-based animations, simulations,
and demonstrations. Assignments were completed asynchronously and
supported by synchronous weekly discussion sessions, extended office
hours, and online forums. Online modules on topics pertinent to the
course were available for perusal at students’ convenience.
Instruction of technical skills was deferred until public health conditions
allow. End-of-course survey data suggest the ERT course effectively
supported development of nontechnical experimental skills and scientific
practices, e.g., asking scientific questions, planning and executing
investigations, collecting, analyzing, and constructing explanations,
creating arguments from evidence, and obtaining, evaluating, and communicating
scientific information. Ongoing phenomenological work will advance
the understanding of the nature and extent of learning during ERT
and how it occurred. Although in-laboratory experiences are not completely
substitutable, course designs may incorporate meaningful activities
away from the lab to fulfill some of the objectives of experimental
instruction. Current concerns over academic laboratory costs make
optimization of instructional resources compelling. This communication
describes the context, the course model, and basics of the ERT design.