have you downloaded
geogebra? it's free and is very useful for teaching all sorts of geometry, mensuration, algebra, stats
tes.com is very good for worksheets and they have printable games too...tes.com...you need to sign up but it's free to do so...also a lot of the worksheets are free but some you need to pay for
slideshare is good for powerpoints
teacherspayteachers is another site i've cme across but have yet to use
the khan academy have lots of good videos on their you tube channel
passy world of maths is great for games and ideas
nrich is excellent for puzzles
ictgames.com...interactive games...basic enough
bbc bitesize have a lot of good maths stuff
and
corkmaths.ie host the past papers of all the irish maths teacher assoc. competitions....these are great for interesting questions and puzzles
also the
ukmt.org.uk have a database of all theirnold competirtions too...really good resource although the last time i used it i had to pay a small amount..but it was worth it
Hope you get value out of one or two of these suggestions
rgds
mark