Whole (4), half (2), quarter (1), eighth (1/2), sixteenth (1/4) — durations relative to the beat.
Clap syllables: ta-a-a-a (whole), ta-a (half), ta (quarter), ti-ti (eighth), ti-ri-ti-ri (sixteenth).
The alphabet of rhythm. Key for counting syllables relative to the beat.
Quarter = one marching step. Eighth = running. Whole = standing still.