I no longer have mine but an entry would look something like this:
Sunday 20th October 2013
Today I commenced work on ..... (research or methodology) at the moment completion could be delayed due to .... However, I envisage that I will be able to overcome these due to .....
At the moment I am feeling a little overwhelmed/stressed by the whole ordeal.
Or
Today work was finalised on .... (research or methodology) as I located/gained various information that is helpful in the areas of ... or ...
Overall, I am feeling much more positive after getting .... completed
Then go onto discuss:
In the media, I noticed an interesting article today that highlighted ....
After discussing my topic with .... or ... it has got me thinking about ....
Tomorrow I plan to undertake the ..... hopefully I will have this finished by .... in order to stay with the timeframes that I initially proposed. However, if this does deviate at all it will be recorded on my Gantt chart with a column showing a comparison between proposed vs actual time.
Essentially writing the log is very much how you would write a normal diary entry. The only difference is that you are including aspects about the research component.
Hopefully, that gets you think about the basic type of structuring you would be using to address the marking rubric criteria.