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Student-Teacher Ratio

18.0

Approx Students per Class18
Teachers for 15:1 Ratio30
Teacher Shortage/Surplus-5

Student-Teacher Ratio vs Total Students Enrolled

सूत्र

Understanding Student-Teacher Ratio

The student-teacher ratio divides total enrollment by the number of full-time equivalent (FTE) teachers.

Formula

Ratio = Total Students / FTE Teachers

Benchmarks

  • Elementary: 15:1 or lower is ideal
  • Secondary: 18:1 or lower
  • National average (U.S.): approximately 16:1
  • Lower ratios generally correlate with better student outcomes, especially in early grades and for at-risk populations.

    हल किया गया उदाहरण

    A school has 450 students and 25 FTE teachers.

    1. 01Ratio: 450 / 25 = 18.0:1
    2. 02For 15:1 ratio: ceil(450 / 15) = 30 teachers needed
    3. 03Teacher gap: 25 - 30 = -5 (shortage of 5)

    अक्सर पूछे जाने वाले प्रश्न

    Is student-teacher ratio the same as class size?

    Not exactly. Ratio counts all teachers (including specialists and support), while class size is the actual number in a classroom.

    What ratio do private schools typically have?

    Private schools average about 12:1, compared to the public school average of 16:1.

    How does the ratio affect learning?

    Research shows significant benefits below 20:1, especially for younger students. The Tennessee STAR study found lasting benefits at 13-17 students per class.

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