If you have time to spare why not think of volunteering. Here's an option to consider.
Help a Child to Read: Volunteer Reading Help - Confident children, literate for life are looking for adults to volunteer as reading helpers in primary schools within Greenwich. They provide a full training package as well as possibilities to use your experience and training with them to study further. You have to commit to a minimum of 3 hours per week during school hours and stay with them for one complete academic year. To find out more contact: Volunteer Reading Help on 020 7730 2429 and ask for an application pack or email them at: firstname.lastname@example.org
Their website is: www.vrh.org.uk