ICS Learn - Developing Professional Practice

Hi Guys

I have just started a course with ICS learn. I have read and read all the material required for Unit 1 and am now on the stage to do the formative assessment. However I am completely stuck on how to write it  - I have made a start but only on about 400 words and it needs to be around 1500 words!! Can anyone advise on how I can write this and get the word count up? I don't even know if I have started it in the correct way as I haven't written an assignment in over 10 years!!!! God help me when I need to do the Summative assessment!!! Any help and advice will be greatly appreciated!! Thank You!