Why would showing family photos not be acceptable? Students love it when you share aspects of your life with them. It's also a great way to teach family relationships. As for them being deceased, your photos of your family members are when they are alive, right?
As for the numbers, get the kids moving as much as possible. You can stick numbers round the room and say things like "run to number 5" etc. I advise you to chunk the numbers; don't teach 1-100 all at once. Also it gets quite repetitive if you ONLY focus on numbers, mix it up a bit. Spend 5-10 minutes playing number games (build up their knowledge slowly) and then move onto something else, like family relationships?
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