While puberty typically begins between ages 8–13 for girls and 9–14 for boys, these ranges are widening due to environmental and nutritional factors. 2. Puberty Education for Girls: Changes and Health

Discussions regarding female pleasure, masturbation, or sexual orientation were virtually nonexistent in mainstream 1991 materials. The Boys' Curriculum: Voice Cracks and Wet Dreams

: A 12-session curriculum that uses interactive stories and videos to clarify values regarding relationships and sexual health.

Girls were taught in single-sex groups. The teacher (always a female nurse or gym teacher) would draw a fallopian tube on an overhead projector. Questions were submitted on index cards. The "exclusive" rule: No question was thrown away. If a girl asked about orgasm (rare, but it happened), the teacher was trained to say, "That is a topic for high school health, not sixth grade."

While the focus remains on anatomy and development, 1991 has introduced a critical, heavier element to sexual education: Safety.