October 1, 2014

Can you teach lab science via remote labs?

Listen with webReader

Colorado Community College's remote lab: in the background is an air-track for physics, in the middle a spectrometer for chemistry and in the foreground a microscope for biology

Contact North (2013) The Colorado Community College System Sudbury ON: Contact North

Contact North has been developing a series of posts on institutions that are ‘game-changers’ in online learning. The latest describes the Colorado Community College System’s use of remote labs for teaching experimental science in first year college physics, chemistry and biology courses.

Remote labs are different from simulations in that students conduct experiments in real time by controlling lab equipment from their computer desktop. Through the use of video cameras (which a student can control remotely), students can observe the experimental conditions in real time, control the equipment from their desktop, and download the data from the experiments to their computers during the experiment. There is usually a lab technician present who helps set up the equipment, but students are responsible for operating the equipment, collecting data, and interpreting the results.

Student’s computer screen: top right is what the student sees through the microscope, bottom right are control buttons for the microscope image, and top left are control buttons for moving the microscope in different directions

In the Colorado Community College system, all 13 colleges have a common first and second year science curriculum. The remote labs currently constitute about 10% of the experimental work required but could grow to as much as 30-50% as more equipment and more experiments are added. There is a booking system and students can usually complete an experiment in 30 minutes. Currently there are approximately 50 students doing physics experiments this way, 100 doing chemistry, and 200 doing biology experiments per semester. Most of these students require foundational science courses in order to take professional programs in health or similar fields. For students taking first year science courses online, the rest of the experiments are done using home kits.

The advantage of the remote labs is that students can work together in real time, if remotely, and can access more expensive or higher quality equipment (such as more powerful microscopes) than they could get in a home kit or even in a small college’s physical lab.

The project has received major funding within the USA, but the main costs in developing the web-based software to operate the equipment and to design the student interface has now been done, enabling more equipment and more experiments to be added at a much lower cost. The project is now intending to expand further remote lab nodes in British Columbia and Montana and these nodes will serve students in other states such as Alaska and Wyoming.

Are remote labs ‘real’ science?

The remote labs were originally developed by instructors in two small colleges in British Columbia, North Island College and the College of the Rockies. However, in BC, science instructors in the colleges are not using the remote labs, and in Colorado, the universities have not yet accepted remote-lab online science courses for credit transfer.

Thus ‘mainline’ science instructors are questioning whether experiments conducted remotely are ‘real’ science. Having personally observed the remote experiments being conducted, I am surprised by this. Students can see and do as much if not more than they would conducting the same experiment in a physical lab. Perhaps even more importantly, major breakthroughs in science, such as the Mars Rover and the Hadron Collider at CERN, depend essentially on remote control and sensing. Furthermore, the existing remote experiments constitute less than 10% of the experimental curriculum, far too small an amount to raise objections about credit transfer or articulation, especially since these students are not going on to become research scientists.

The objections of science instructors to remotely controlled labs reminds me of how the teaching of laboratory science was invented. In the 1860s neither Oxford nor Cambridge University were willing to teach empirical science. Thomas Huxley therefore developed a program at the Royal School of Mines (a constituent college of what is now Imperial College, of the University of London) to teach school-teachers how to teach science, including how to design laboratories for teaching experimental science to school children, a method that is still used today, both in schools and universities. Science teaching today is (ironically) not God-given but an artifact created in the context of the 19th century. Remote labs are not something less than ‘real science’, but an extension of basic scientific method to the context of today. Get with it, scientists.

 

 

Comments

  1. Gina Bennett says:

    A timely & succinct post about the status of remote science labs, Tony.

    However, I do take exception to your statement “Thus ‘mainline’ science instructors are questioning whether experiments conducted remotely are ‘real’ science.” Oh, don’t I wish!!! But unfortunately, very few science instructors *are* questioning whether experiments that are conducted remotely can teach real science. Most science instructors I’ve talked to insist that science can only be learned effectively when the student is situated at a lab bench in the immediate vicinity of the lab teacher.
    I am dismayed — even a bit surprised — that this attitude not only lingers but seems to be promoted within the community of mainstream science educators. I have a formal science background myself (B.Sc. in Biological Sciences) & what I love about science is its focus on finding the truth, asking questions, finding data related to those questions, & forming conclusions based on what is discovered. But from what I can tell, most science educators are not asking the question, & they’re certainly NOT acknowledging the growing body of data which supports the educational value of remote science labs.
    I recently read an article about another innovative educational venture (at http://goo.gl/4w1aV), involving a comprehensive tutorial program conducted outside of the traditional classroom environment. The article was interesting enough but I was even more intrigued by a somewhat plaintive comment posted by ‘nunya’, who lamented “Isn’t face time with professors supposed to be worth something?” Such a good question! Science educators, it’s time to look critically at the role of ‘face time’ in science teaching, to refrain from imbuing it with magical qualities, & to apply the Scientific Method to your review of data supporting the value of ‘non-face-time’ ways of educating.

  2. Such sceptical institutions need to be aware of other questions being asked. Recent research (sorry I don’t have a reference to hand) seems to show that most practical work in courses generates very little learning, probably because of the poor design of the practical challenges. I remember myself following laboratory instructions in university without the need for any significant thought. In addition, some years ago I read research indicating that students learned more with reduced time in labs and more time on simulators. Remote labs could be considered to be very high quality simulators. We have made remote labs in automation technology available to our distance learners for some years with great success. The first problem we had was that the light was turned off in the lab when students wished to access in the middle of the night. Then we had to make the equipment available to the full-time students who complained that they had access to labs for a few hours per week and the distance learners had access 24/7. By the way, the lecturers love the system.

Trackbacks

  1. [...] use 3D printing in your art, science or CTE classes? How about incorporating augmented reality or virtual labs? Are you prepared to face a classroom of students wearing Google Glasses or other wearable [...]

Speak Your Mind

*