I don't have any lesson plans, but I know some games...
for example, children walk around the room (the command you give to them is "walk, walk") and then suddenly "1,2,3,4 touch something red (blue/yellow/green/etc)" and each child touches whatever he/she finds around of that colour.
nice game for colours.
you can turn it into a competition, for example each child who touches some wrong colour is out