It is a big criteria, the number of standards for the TA sector can make it seem overwhelming, but do only select the ones most relevant to your role/what you do in your setting & if in doubt your tutor will be able to help xx
This thread outlines some of the products you could use to build your portfolio:
http://www.silkysteps.com/forum/showthread.php?t=20624
and
this portfolio list on Open.ac.uk is most useful
Best wishes