Week 6: Microcomputer-based Laboratory (MBL)

Week 6 class took place in a Microcomputer-based Laboratory (MBL). We were introduced to the MBL strategy learned last week and given a chance to do a hands-on activity to experience ourselves. My group was assigned to conduct an experiment using the Voltage Current Sensor. The simple experiment aimed to determine the voltage of different number of cells using the Voltage Current Sensor.

First of all, we discussed about the steps. There are a few steps in conducting the experiment.

Voltage Current Sensor
1. The sensor is being plugged in to the computer.
2. EZscreen or DataStudio is selected from the window or programme files.
3. The voltage leads is being connected to one battery. The red lead is connected to the positive of the battery while the black lead to the negative.
4. Choose “Table” from the list of items in Datastudio.
5. Click “Start”
6. The voltage and ampere of the battery is displayed on the screen.
7. The data is being recorded on a piece of paper.
8. Step 3 to 7 is being repeated with 2 and then 3 batteries.

After the experiment, we reflected on the use of MBL in Science teaching. We found that it is user-friendly and safe to use especially when the experiment requires dangerous substances like acids and bases. Plus, the data collected is very fast and accurate. In addition, the data can also be converted into graph and table. Therefore, we can save time. Manipulative skills can also be promoted.

However, I personally think that it is suitable to be used only for Level 2 students and more appropriate to be used in secondary schools due to its impracticality. Moreover, the cost of the strategy is very high. In rural Malaysian schools, it might be difficult to be implemented. Plus, teachers need to be well trained so that they can troubleshoot any problems. Science process skills are also less promoted as it provides instant information just by clicking. Still, teachers can incorporate traditional methods with the technology-based method.

I must say that the experience is very enriching to me. It is something that we do not learn every day.