Over time, this model became the foundation of the modern American education system, with students advancing from kindergarten through 12th grade based on age, typically starting kindergarten around age 5 and completing high school by the age of 18. Today, the age-based grade level system remains the standard in the United States.. Elementary school is the first stage of the school system, covering grades 1-5. Students in this stage are usually between 6 and 10 years old. These are the ages that correspond to each grade in elementary school. 1st Grade: 6-7 years old 2nd Grade: 7-8 years old 3rd Grade: 8-9 years old 4th Grade: 9-10 years old 5th Grade: 10-11 years old
Understanding the common age bracket for third-grade students is essential to effectively tailor their learning experiences and ensure optimum cognitive development. Typically, how old are third graders? The average age of children enrolling into the third grade falls within 8-9 years. In most U.S educational systems, this range may slightly.. School Ages and Grade Levels. The table below outlines the child age for each school grade in the US. At the start of Elementary school, students are 5 or 6 years old in Kindergarten.. 3rd Grade: 8 - 9 years old: Elementary: 4th Grade: 9 - 10 years old: Elementary: 5th Grade: 10 - 11 years old: Middle School: 6th Grade: 11 - 12 years old.