I use the familiar North American children's song to teach body parts, "Head, Shoulders, Knees, and Toes."
The lyrics in Spanish are:
Cabeza, hombros, rodillas y pies, rodillas y pies.
Cabeza, hombros, rodillas y pies, rodillas y pies.
Ojos, orejas, boca y nariz.
Cabeza, hombros, rodillas y pies, rodillas y pies.
When I teach this song, which is enthusiastically received in grades 2, 3, and 4, the children learn the lyrics well so they can easily point to the body parts correctly. Then we begin to leave off one body part at a time, starting with cabeza, and not sing it but point to it. It's lots of fun.
The last two steps are leaving off the two "y"'s -- the ones between rodillas y pies and boca y nariz. It ends up being a fun pantomime exercise. Of course, we try to do it as fast as we can by the end.
Please note that Silvia, la princesa, in the BBC "Muzzy" video, Part IV of Level One, sings this song with different lyrics. It's good reinforcement for prior learning. The children listen several times to the new lyrics. We write out the new lyrics, and then we compare/contrast both sets of lyrics.
I have also heard one version by Colibrí where the exact equivalent is used for toes --- dedos del pie.
More ideas for body part lessons can be found at: