Many of my academic colleagues are thinking about modifying their undergraduate teaching for next academic year so that they are more resilient to coronavirus. Laboratory classes present particular challenges when access and density of occupation are restricted. However, if the purpose of laboratory classes is to allow students to experience phenomena, to enhance understanding, to develop intuition and to acquire skills in using equipment, making measurements and analysing data, then I believe this can achieved using practical exercises for homework. I created practical exercises, that can be performed in a kitchen at home, as part of a Massive Open Online Course (MOOC) about thermodynamics [See ‘Engaging learners on-line‘ on May 25th, 2016]. I have used the same exercises as part of my first year undergraduate module on thermodynamics for the past four years with similar levels of participation to those experienced by my colleagues who run traditional laboratory classes [see ‘Laboratory classes thirty years on‘ on May 15th, 2019]. I have had a number of enquiries from colleagues in other universities about these practical exercises and so I have decided to make the instruction sheets available to all. Please feel free to use them to support your teaching.
The versions below are from the MOOC entitled ‘Energy: Thermodynamics in Everyday Life‘ and provide information about where to obtain the small amount of equipment needed, and hence are self-contained. Although the equipment only costs about £20, at the University of Liverpool, we lend our students a small bag of equipment containing a measuring beaker, a digital thermometer, a plug-in power meter and a plumber’s manometer. I also use a slightly different version of these instructions sheets that provide information about ‘lab’ reports that students must submit as part of their coursework.
I reported on the initial introduction of blended learning and these practical exercises in Patterson EA, 2019, Using everyday examples to engage learners on a massive open online course, IJ Mechanical Engineering Education, 0306419018818551.
Instruction sheets for thermodynamics practical exercises as homework:
Energy balance using the first law of thermodynamics | Efficiency of a kettle
Ideal gas behaviour | Estimating the value of absolute zero
Overall heat transfer coefficient | Heat losses from a coffee cup & glass