The "11-plus" is an examination taken by students in England, typically at the age of 11. It is used to determine admission to selective secondary schools, such as grammar schools. The test assesses a child's abilities in areas like mathematics, English, and reasoning skills. The 11-plus can vary by region, with different formats and subjects depending on the local education authority. Some areas may also include an interview or additional assessments. The results help parents decide the best educational path for their children, influencing their future academic opportunities.