I'm not a teacher but I work from home 9.30 - 12.30. Luckily, say in the summer holidays, i'm not too busy with my work, so I prioritise my time. I get up at normal time - say 8am (well it is the holidays), get dressed etc and start work - this gets me ahead of time by about an hour and a half as I don't usually start until about 9.30 when DS is at school. DS has breakfast and watches a bit of TV, then by about 11ish i'm finished for the day and we go out, either to friends houses, beach, or invite friends round. Other days, if we stay in, he makes things, colours in, plays in the garden on his trampoline and maybe invites a friend round to keep him company. I think its just a case of being organised and not feeling guilty expecting them to make their own entertainment for a few hours. DS is 7, so I appreciate that those couple of extra years means he is able to entertain himself quite well, although it hasn't always been like that. I'm sure you'll be fine.