Complex sentence: Students study subjects such as math, science, English grammar, writing, literature, history (often times their state of residence during 4th grade), and most schools also offer health, music, art, and physical education.
Split into simpler sentences: Students study subjects such as math, science, English grammar, writing, literature, and history (often their state of residence during 4th grade). Most schools also offer health, music, art, and physical education.