What is the 10-minute homework rule?

Cooper's 10-minute rule recommends 10 minutes of homework per grade level per night: grade 1 = 10 minutes, grade 5 = 50 minutes, grade 10 = 100 minutes. Exceeding these amounts shows diminishing or negative returns, especially in elementary school.

Does homework reduce the achievement gap?

Homework may widen the achievement gap if disadvantaged students lack study space, parental support, or internet access for assigned online work. Equity-conscious homework design (completable without home resources) is increasingly emphasised in educational research.

Homework Time Marginal Return Calculator

How It Works

Model the relationship between daily homework time and academic achievement using Cooper et al.'s meta-analytic data. Shows differential effects by grade: positive for high school (d = 0.64), mixed for middle school, negligible for elementary (d = 0.15)

Each component has a specific meaning:

Cooper et al — The cooper et al recorded for the patient or scenario being assessed.

Note: Interpret the homework roi result against the clinical thresholds and context described above.

How to Use

Enter the Cooper et al for the patient or scenario you are assessing. Model the relationship between daily homework time and academic achievement using Cooper et al.'s meta-analytic data. Shows differential effects by grade: positive for high school (d = 0.64), mixed for middle school, negligible for elementary (d = 0.15). Use the homework roi result to inform your clinical assessment.

Glossary and Definitions

Homework effect: A key concept in Homework ROI: Model the relationship between daily homework time and academic achievement using Cooper et al.'s meta-analytic data. Shows differential effects by grade: positive for high school (d = 0.64), mixed for middle school, negligible for elementary (d = 0.15).
Homework time: A key concept in Homework ROI: Model the relationship between daily homework time and academic achievement using Cooper et al.'s meta-analytic data. Shows differential effects by grade: positive for high school (d = 0.64), mixed for middle school, negligible for elementary (d = 0.15).
Cooper meta-analysis: A key concept in Homework ROI: Model the relationship between daily homework time and academic achievement using Cooper et al.'s meta-analytic data. Shows differential effects by grade: positive for high school (d = 0.64), mixed for middle school, negligible for elementary (d = 0.15).
Academic achievement: A key concept in Homework ROI: Model the relationship between daily homework time and academic achievement using Cooper et al.'s meta-analytic data. Shows differential effects by grade: positive for high school (d = 0.64), mixed for middle school, negligible for elementary (d = 0.15).
Optimal homework: A key concept in Homework ROI: Model the relationship between daily homework time and academic achievement using Cooper et al.'s meta-analytic data. Shows differential effects by grade: positive for high school (d = 0.64), mixed for middle school, negligible for elementary (d = 0.15).
Marginal return: A key concept in Homework ROI: Model the relationship between daily homework time and academic achievement using Cooper et al.'s meta-analytic data. Shows differential effects by grade: positive for high school (d = 0.64), mixed for middle school, negligible for elementary (d = 0.15).
Homework ROI: The Homework ROI computes a result from the inputs you provide, based on the method described above.