"Special needs children"
Translation:Watoto wenye mahitaji maalumu
watoto = children (class 2)
wenye = with / having (class 2)
mahitaji = needs (class 6, plural of class 5 hitaji)
maalumu = special (invariable adjective)
"Many children need ..." would be Watoto wengi wanahitaji ...
I'm not sure how to translate "extras" as it's pretty context dependent. Probably mambo ya ziada (extra things).