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Middle school sub plans: math

One math lesson for every period of a middle school day, with no prep: a five-minute bell ringer, then a percent of a number sheet with its key, a partner check, and an exit ticket at the door. The timetable runs 7 periods of 50 minutes; the lesson fits each one.

Checked October 30, 2026. Made from Peabody Teach's own passages, worksheets and brain break cards.

Make the whole day at middle school ▸

The lesson, every period

Math: percent of a number

  1. First 5 minutes, the bell ringer: write these on the board and solve them together, asking a student to explain each step: 50% of 160; 10% of 220; 10% of 60.
  2. Next 30 minutes: Hand out the percent of a number sheet (16 problems). Print 24; the key is on its own page.
  3. Students work on their own for twenty minutes, then check with a partner.
  4. Early finishers write three problems of their own and swap with a neighbor.
  5. Last 10 minutes, the exit ticket: students solve two more problems from the board on a scrap of paper with their name, and hand it to you at the door.
  6. Collect the work for each period in its own pile, with the period written on top.

📄 Percent of a number (sheet and key)

The sheets, on their own pages

Subbing middle school

In middle school you teach the same lesson five or six times, a period at a time, with a few minutes of passing between. Seating charts, phones and “our teacher lets us” are the three things to settle in the first two minutes of each period.

  • Take attendance from the seating chart in the first five minutes of every period; it is how you learn names.
  • Put the bell ringer on the board before the bell, so students start the moment they sit down.
  • Keep each period's work in its own pile, labeled with the period, for the teacher.

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