Use the rhythms of music to help students hear syllables and the divisions between them. Sit with students in a circle and have them individually tap out the syllables of their names using claves, bells or other rhythm instruments. After each child taps the syllables of his name, ask the rest of the students to tap out that student's name also. Point out that some students' names require multiple taps while others, like Mike and Jane, require only a single tap.
Use a simple song that all the students know for this activity. Students can chant the words and use claves or clap their hands along with the rhythm of the song. Once they are comfortable clapping and chanting, move on to singing the song while students try to keep up with the rhythm. Ask students how many claps or taps each word gets until they understand the connection between the number of syllables and the number of claps each word gets.
One way to reiterate concepts that you teach is with worksheets. You can use worksheets to classify words according to the number of syllables they have, to teach open and closed syllabication and to teach syllable separation. Use websites such as Super Teacher Worksheets or go to an educational supply store if you need ideas or examples.
Have students look into a mirror and notice the way their jaws drop as they pronounce each syllable. After they observe themselves, have them work with a partner and keep track of the number of words whose syllables they count correctly by watching the way their partner's jaw moves. Alternatively, separate multisyllabic words and write each syllable on an index card. Shuffled the cards and have students create and recreate the original words. They can even come up with new words using the syllable parts.