innovative improvements in electronic engineering laboratory education using eml
DESCRIPTION
This presentation discusses the innovative method of laboratory learning in Electronic engineering at Government Polytechnic Nagpur and Government Polytechnic Gondia. Students were motivated to purchase their own electronic Mini- Lab (EML) components. They designed simple yet fascinating projects using EML. Students did all the development activities individually. They helped each other and demonstrated collectively. In the process, they learned many aspects of engineering. This will make them skilled engineers. This provides tremendous benefits in teaching learning process. It also boosted the interest, confidence of students. Incorporating active/ cooperative learning into traditional instruction can be a useful pedagogical tool to help students to perform practical and project work. This concept is remarkably simple and cost effective but extremely beneficial to teaching learning process.TRANSCRIPT
Innovative Improvements in Electronic Engineering
Laboratory Education using Electronic Mini Lab (EML):
A Case Study
Mr. V. J. Dongre Lecturer Electronics Govt. Polytechnic, Gondia (Maharashtra)
Importance of Laboratory Work in Engg.
Cognitive Domain: Instrumentation, Experimentation, Modeling, Data Analysis and Design.
Psychomotor Domain: manipulating the apparatus, Sensory Awareness, Troubleshooting Skills.
Affective Domain: behavior and attitudes learnt from failure, creativity, Curiosity, communication, teamwork, safety, and ethics in laboratory.
Size of Electronic components
Glimpse of Electronic Components
Characteristics of Electronic Labs• Instruments & components are small, delegate, fragile.
• They need careful handling.
• Quality of practical kits imposes problems.
• Prone to wear and tear due to rough handling.
• Malfunctioning of Kits due to Voltages of incorrect
ranges or making wrong connections.
• Difficult to experiment in big group of students.
Electronics Mini-Lab (EML)
SN Item Qty rate Cost (Rs)1 Digital Multi-meter 1 200 2002 Soldering Iron 1 200 2003 Soldering stand 1 60 604 De-soldering Baird (mesh) 1mtr 20 205 soldering wire 1 25 256 Soldering flux 1 15 157 Breadboard 1 75 758 9 V Battery with connector 1 30 309 Wire stripper 1 50 50
10 Nose plier (small) 1 80 8011 Hook up wire various colors 3 mtr 03 1012 Berg strip male and female 2 05 1013 Heat shrink tube 3mm diameter 1 mtr 05 0513 Plastic container 10”x8”x2” 1 70 7015 Plastic container3”x2”x0.5” 2 15 3016 LED various colors 5 mm 5 02 1017 Resisters ¼ watt (330 ohm) 10 1 1018 IC 7805 , voltage regulator 1 20 2019 ICs: 7400, 7402, 7404, 7408, 7432, 7486,
7493, 555, LM324, LM741, IC 89S511 each - 300
20 LDR, Thermister, Photodiode, POT 2 each - 80 Total Approximate Cost Rs. 1300
Beradboard: The Base of EML
Beradboard: Basic Connections
Beradboard based Practical setup
Teaching Learning Process using EML
Practical Setup done by students
Small Robot using
Breadboard
Features and advantages of EML1. They visit the market. It increases exposure.2. Students purchase their own EML. This builds sense of
belonging.3. They handle their own components with care to avoid damage.4. They work individually. So They are responsible for their
success. Hence they are more attentive and focused.5. Practical completes in short time. More time is available for
doubt solving and assessment.6. Students cooperate with each other to diagnose faults. This
increases cooperation amongst the students.7. As the students get 100% practical exposure, they also develop
interest in theory classes. This synergies the teaching learning process.
8. Burden on College Lab is reduced as this activity is done in classroom.
Case Study: Microcontroller Based LED Flasher
Flashing display Exhibition: 65 students participated
Video available on utube Weblink http://www.youtube.com/watch?v=Kcoh75h6lZs
Case Study: Microprocessor based Analog to Digital Converter
Analog to Digital Converter setup designed by author
Video available on utube Weblink http://www.youtube.com/watch?v=T2qNL6Pk2vg
Conclusion• EML is interactive and improved method of teaching learning.
• Cost effective and portable.
• Students are very enthusiastic in working with EML.
• Students inculcate Higher order thinking for analysis, synthesis
and evaluation.
• The concept can be equally extended with suitable
modifications in other branches of engineering.
• EML along with modern technology resources like mobile
camera and internet can serve as boon to practical teaching
learning process.
Acknowledgements
Dr. Vijay H. MankarDepartment of Electronics and Telecommunication, Government Polytechnic, Nagpur (M.S.), [email protected]
Mr. Ramkrishna V. Yenkar Maharashtra State Board of Technical Education, Regional Office, Nagpur (M.S.), [email protected]
Co- Authors