The term "3-6" typically refers to a range of numbers, specifically from three to six. This range can be used in various contexts, such as counting, measurements, or age groups. For example, in education, children aged 3-6 years are often in preschool or kindergarten, where they develop foundational skills. In mathematics, "3-6" can also represent a simple subtraction problem, where 6 is subtracted from 3, resulting in a negative number, specifically -3. This illustrates basic arithmetic operations and helps in understanding the concept of negative values in number lines.