Hi, welcome to the site. This criteria is asking about your role as a TA and how you support both children and the teacher with what you do.
To respond to it consider the activities you're involved with. Do you suggest resources to use for them? Make observations during the activity about children's progress? Feedback this information to the teacher so that they know how well children are doing and the type of activities that could be planned for next time?
Page 34 of this STL handbook or if you have
the newer edition page 111+ explores your role in the setting.
Best wishes