Here is a song that I have worked on with the 6 and 7 years olds. It's great for learning full sentences and great fun, especially when a real chocolate cookie is used!  Excuse the "childish video" but I like this version of  the song, it's kinda funky!  

Such a fun song with lots of action words and body parts to sing along to: thumbs up, knees together, shoulders back, bottoms out, tongues out, eyes closed.... and chicky chacky chicky chacky chichacha!