Racira Calculator

Teacher Preparation Time Calculator

Teacher Preparation Time Calculator

Lesson Planning
Grading & Admin
Total Weekly Prep Time
4h 35m
4.6 hours per week
Lesson Prep150 min
Grading & Admin125 min
Per Day (5-day week)55 min
DetailValue
Number of Classes5
Prep per Class (min)30
Lesson Prep Total150 min
Number of Students25
Grading per Student (min)5
Grading Total125 min
Total Prep Time4h 35m

Prep vs Grading Breakdown

Summary

Classes5
Students25
Lesson Prep150 min
Grading & Admin125 min
Total Minutes275 min
Total Time4h 35m

What the Numbers Mean

With the defaults (5 classes × 30 min prep, 25 students × 5 min grading), the result is 4 hours 35 minutes per week — 150 minutes of lesson prep and 125 minutes of grading. Spread across a 5-day week that is about 55 minutes per day beyond class time.

Beyond the Clock

US teacher surveys consistently find 11-15 hours of weekly work beyond contracted classroom time. If your inputs push the total above that, it may be worth reviewing planning periods, batching grading, or sharing prep across sections.

Frequently Asked Questions

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