We spent about 1 hour install R and Rstudio. I then told many students to work as a team.
Some students have various windows computers, and their interface were different.
Then many students waited for xlsx package to be installed through wireless. I have to abadon the xlsx approach, and switched to csv approach.
I then let students reviewed their streaked plates. Only 1 plate can be given A-. The rest of them are at B- . About 2/3 of the plates have to be redone (below C).
I let the students try to streak the plates again. Next day, I found out that almost all students failed. Most students seem to pick the old colonies for every streak, meaning that they did not get the idea at all.
Some students tried to open R code in the ZIP archive directly. This is a common mistake. This problem become more annoying with the different version of operating systems offer different viewing and extraction options.
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