Class 4 typically refers to a category of vehicles that are heavier than Class 3 but lighter than Class 5. In many regions, this classification includes trucks and vans that have a gross vehicle weight rating (GVWR) between 14,001 and 16,000 pounds. These vehicles are often used for commercial purposes, such as delivery services and construction. In the context of education, Class 4 can also refer to the fourth grade in primary school, where students are usually around 9 to 10 years old. At this level, children learn subjects like math, science, language arts, and social studies, building foundational skills for their future education.