Year 4 is typically the fourth year of primary education for children aged 8 to 9 years old. In many countries, it follows Year 3 and precedes Year 5. During this year, students build on their foundational skills in subjects like math, English, and science. They often engage in more complex projects and begin to develop critical thinking skills. In Year 4, children may also participate in various extracurricular activities, such as sports, music, and art. This year is important for social development, as students learn to work collaboratively with their peers and develop friendships.