The document discusses understanding gender and puberty. It defines key terms like sex, gender identity, gender expression and gender roles. It also outlines some of the emotional, physical and social changes that occur during puberty like mood swings, peer pressure and seeking independence. The document also discusses body image, noting it reflects how one feels about their body and appearance. It outlines different aspects of body image including perceptual, affective, cognitive and behavioral. Positive and negative body images are defined.