Innovating Food Microbiology lab classes Wilma Hazeleger Laboratory of Food Microbiology
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Innovating Food Microbiology lab classes
Wilma Hazeleger
Laboratory of Food Microbiology
Background
Increasing student numbers
2
Challenges lab classes
● Lab space
● Differences in starting level
● Staff availability
Goals
● Stimulate self-activity
● Learning outcomes
● Reduce time to explain basics
Innovation of lab classes Food Microbiology
Food Microbiology (BSc-2)
● 3 weeks -> 2 weeks of lab classes
● Digital assignments
● Lab clips
3
# s
tudents
Food Microbiology, in silico experiments
Each assignment: 2-4 h
● Microscopic ID of fungi
● Variability in results (statistical data analysis)
● Thermal resistance
● Molecular ID of bacteria
● Disinfectants
4
In silico experiment; Thermal resistance
5
6
In silico experiment; Q and (multiple) A
7
In silico experiment; outline experiment
8
In silico experiment; results, plate counts
9
In silico experiment; interpretation
10
In silico experiment; calculations
Evaluations per digital assignment: time
11
How much time did it take to complete the assignment?
Summary evaluations digital assignments
12
Average for each quality indicator (scores 1-5)
Requirement average1 Time (2-4 h) OK2 Clear 3.43 Manageable 3.44 No guessing 3.45 Understood 4.06 Accurate and relevant 3.77 Variety 3.68 Visuals 3.99 Fun to work on 3.410 Learned much 3.7
n=109
Innovation of lab classes Advanced FM
Advanced Food Microbiology (MSc-1)
● Design preservation experiment
● Different starting level students
● Design day 1, start experiment day 2
● Not enough time for feedback, preparations
● Labbuddy
● Design tool (ExperD)
● Web lab manual
13
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0
20
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2010 2011 2012 2013 2014 2015 2016
stu
dents
Adv Food Microbiology, web lab manual
Web manual
Protocols
● Prepare mode
● Work mode
● QR code, easy access with tablet or smartphone
Including lab clips
14
Web lab manual: lactic acid bacteria
15
Web lab manual: lactic acid bacteria
16
Web lab manual: lactic acid bacteria
17
Adv Food Microbiology, design tool: ExperD
Design preservation of raw food
● Choose food, treatment, storage temp, mo, ....
18
ExperD:
● Brush up knowledge, Q & A, feedback
● Explanation experiment and tool
● Design page, drag and drop
● Choices and feedback
● Link with web lab manual
● List items needed
● Start experiment
ExperD: introduction
19
ExperD: design page; start: drag and drop
20
ExperD: design sheet; design experiment
21
ExperD: design sheet; design
22
ExperD: design sheet; list needed media
23
Output shopping list media, equipment
24
Summary in Excel-> media kitchen
Group 1
Group 2
Group 3
yes
yes
yes
After permission: start experiment next day
25
Evaluation ExperD and WebLM (n=78)
26
Question # Question
1.1 ExperD guided me through the design smoothly.1.2 ExperD enabled me to set priorities for this experiment.1.3 ExperD supported efficient to design of my experiment.2 ExperD stimulated collaboration within our group.3 I found the information and feedback in ExperD helpful.4 While using ExperD, we could work more independently than without.5 ExperD should be applied in other experiments as well.6.1 The difference between the prepare mode and work mode was clear.6.2 Prepare mode and work mode helped me to understand the experiments better.6.3 Prepare mode and work mode made the experiments easier to perform.7 While using WebLM I often had to ask the supervisor for help.8 I prefer a paper copy of the protocols above a digital version. 9 I did use the option to watch protocols on the phone or tablet in the lab.10 WebLM should be applied to the other protocols (e.g. pathogens) as well.
4.34.0
4.34.1
4.4
3.9 4.0 3.9 4.1 4.0
2.92.5 2.6
4.1
0.0
1.0
2.0
3.0
4.0
5.0
1.1 1.2 1.3 2 3 4 5 6.1 6.2 6.3 7 8 9 10
Avera
ge
Question
Average per question ExperD (1-5) and webLM (6-10)
Evaluation WebLM and ExperD (n=78)
27
Question # Question
1.1 ExperD guided me through the design smoothly.1.2 ExperD enabled me to set priorities for this experiment.1.3 ExperD supported efficient to design of my experiment.2 ExperD stimulated collaboration within our group.3 I found the information and feedback in ExperD helpful.4 While using ExperD, we could work more independently than without.5 ExperD should be applied in other experiments as well.6.1 The difference between the prepare mode and work mode was clear.6.2 Prepare mode and work mode helped me to understand the experiments better.6.3 Prepare mode and work mode made the experiments easier to perform.7 While using WebLM I often had to ask the supervisor for help.8 I prefer a paper copy of the protocols above a digital version. 9 I did use the option to watch protocols on the phone or tablet in the lab.10 WebLM should be applied to the other protocols (e.g. pathogens) as well.
Summary result of innovations
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● Able to cope with larger student groups
● Lab classes two weeks instead of three
● Two consecutive groups, planning easier
● Less lab space needed, less apparatus, less staff
Staff vs students
29
students
staff
Summary result of innovations
30
● Able to cope with larger student groups
● Lab classes two weeks instead of three
● Two consecutive groups, planning easier
● Less lab space needed, less apparatus, less staff
● Fewer low cognitive questions
● Digital assignments highly appreciated
● Stimulates collaboration within groups
● Approval to order media automatically
● Media easily ordered and distributed
● Use in other courses as well
Acknowledgements
LabBuddy® , Kryt B.V.
Koos van der Kolk
Tineke Bijl
31
WU
Ida Jongenburger
Heidy den Besten
Martine Reij
Gerrieke van Middendorp
Marcel Zwietering
Tjakko Abee
Judith Straver
Marcel Tempelaars
Judith Wolkers
Gerard Moerland
Philippe Puylaert
Lisette Nitsch
www.labbuddy.net
CBS-KNAW Fungal
Biodiversity Centre
Thanks for your attention!
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