Handing in Notice at work

[Marcus1991]

Basicially I have worked at this insurance company in a call centre for 6 months and i'm ready to quit. Before I was a welder but made redundant, and now ive been offered a job as a welder again

Im not sure on how to write my notice, they have been very good to me over the past six months as my youger brother died within 2 weeks of me starting there (last september was shit) but I don't want them to think I have used them.

Any ideas on what I should put down?

Thanks.