Gender bias in math and science has existed since the beginning of teaching but gained attention in the early 1990s. Societal perceptions encourage girls from a young age to be less independent and active than boys, influencing them to take a passive role in science labs and feel uncomfortable with science equipment. As a result, many girls do not feel comfortable in science classes and do not compete for technical jobs. While schools often overlook this issue, some efforts like single-sex math classes have helped boost girls' participation in math and science.