Make sure to include objects that differ from one another in the number of syllables in their name. All of the children should repeat the chosen object's name as they clap out its syllables. Then ask how many syllables were heard, taking care not to let anyone call out the answer too soon. Gradually, as the children get better at the game, you can make it more difficult by using items with names that are longer and collectively more vaired in length. Happily, children tend to find very long words delightfully amusing.
Variations Use physical movements other than clapping.
To extend the vocabulary of the game, use pictures instead of actual objects. To get double duty out of the activity, you may prefer to use pictures that are tied to a theme being studied in your classroom. For example, if studying the state of Texas, you might include pictures of boots, cacti, bluebonnets, and armadillos. As your group develops proficiency with this activity, ask one child both to clap the name of the object and respond with the number of syllables and ask the others to decide if the first child is correct. Have a child pull a picture card from the basket and, using the same procedure as for the objects, clap and count the number of syllables.