This document discusses the evolution of approaches to gender and development (GAD), including the welfare approach, women in development, women and development, and gender and development. It defines key concepts related to GAD such as sex, gender, gender roles, gender differences, and gender bias. It outlines principles of GAD and some legal bases that support GAD, including CEDAW and the Beijing Platform for Action. Finally, it discusses types of gender issues and how gender biases are transmitted and manifested through various social agents.