The Director is explaining the amount of twins which are about 96 in total. The children are literally scientificaly engineered. This scene pertains to uniformity and sameness because the children all look the exact same, literal twins made from one egg.
S E G R E G A T I O N / Unequal Power
The Beta children are in Elementary Class Consciousness, being conditioned with a sound device, broadcasting instructions on how they should feel while they are sleeping. This scene pertains to "no free will/independent thought" because the children are listening to a voice, instructing they should feel (brainwashing), not only about themselves but as well as the other groups.