Hi Justme
Hmmmm Key skills for a level 3 NVQ, I could be wrong but this is an advanced apprenticeship you are doing?
You need to think laterally about this and your assessor should have pointed you in the right direction.
Don't look at this as extra work but use documents or statements that you are using for your NVQ portfolio.
For instance, the complex documents could be about giving medicines or the human rights of your clients etc. Your work will demonstrate your knowledge and understanding for your NVQ units. The same will apply to your second two documents.
I've included the standards if you haven't a copy of them below:
Read and synthesise information
explore a range of documents to find the most appropriate ones for your purpose
select and use different documents to obtain relevant information
use additional sources to help you understand complex lines of reasoning and information
compare accounts and recognise opinion and possible bias
present your own interpretation of the subject in a way that brings together information from different
documents in a coherent form.
C3.2
Read and synthesise information
from at least two documents
about the same subject.
Each document must be a minimum of
1,000 words long.
Evidence must show you can:
3.2.1 select and read relevant documents
3.2.2 identify accurately, and compare, the main points,
ideas and lines of reasoning
3.2.3 present your own interpretation of the subject in a
way that is coherent and brings together
information from different documents to suit your
purpose.
Write documents
select appropriate formats for presenting information including essays, reports and articles
select and use an appropriate style and tone to suit your audience, the degree of formality required and the
nature of the subject
organise material coherently to suit the length, complexity and purpose of your document
proof-read and where necessary re-draft your documents so that spelling, punctuation and grammar are
accurate.
C3.3
Write two different types of documents,
each one giving different information
about complex subjects.
One document must be at
least 1,000 words long.
Evidence must show you can:
3.3.1 select and use a format and style of writing that is
appropriate to your purpose and the complexity of
the subject matter
3.3.2 organise material coherently to suit the length,
complexity and purpose of your document
3.3.3 spell, punctuate and use grammar accurately
3.3.4 make your meaning clear.
Don't forget, most important! Your pieces of work must be accurately spelt and grammatically correct otherwise they will be failed.
Hope this helps.

Dave