math class 678 4-in-1 skill sheets
Self-checking activity packs · grades 6–8

Activities that check themselves

14 single-topic packs, each with a maze, a secret message, an error detective and one more activity, where a wrong answer shows itself while students work. In print and as self-grading Google Forms. Press play on any pack for a 20-second look inside.

See the 14 packs Free maze to try
Four activities in every pack

Wrong answers show themselves

So students catch a mistake the moment they make it, not a day later on a graded paper.

  1. 1

    Maze Race

    Students solve their way along the one route through a maze. A wrong answer leads into a trap, so they know to go back.

  2. 2

    Secret Message

    Twelve problems whose answers spell a message. A wrong answer gives the wrong letter, so the mistake shows itself.

  3. 3

    Error Detective

    Ten students’ worked problems, four of them with a mistake. Students find each mistake and fix it.

  4. 4

    Size It Up

    Students put their answers in order to spell a word, then solve problems in context. Order of Operations has parentheses puzzles here instead.

The packs

14 topics, grouped by grade

6th grade

Five 6th grade topics

Order of Operations, Exponents, The Coordinate Plane, Ratios and Unit Rates, One-Step Equations

6th Grade Activity Bundle on TPT
6th and 7th grade

Area, surface area and volume

Area of Polygons, Surface Area and Nets, Volume of Prisms

Geometry Activity Bundle on TPT
7th grade

Three 7th grade topics

Integers, Two-Step Equations, Proportional Relationships

7th Grade Activity Bundle on TPT
8th grade

Three 8th grade topics

Scientific Notation, Pythagorean Theorem, Systems of Equations

8th Grade Activity Bundle on TPT
Bundles

Every pack for your grade in one file

The grade bundles and the geometry bundle hold three to five packs each; the 6th-8th grade bundle holds all 14.

In every pack

Everything for one topic

  • Four self-checking activities on one topic
  • A reference sheet with worked examples and the mistakes to watch for
  • A Quick Check exit ticket in two forms, A and B
  • Answer keys that name the mistake behind each wrong answer
  • Self-grading Google Forms for every activity and both Quick Checks
  • A teacher guide, with no prep beyond printing
Try it first

A free Order of Operations maze

A complete self-checking maze from the Order of Operations pack, with its answer key.

Get it free on TPT
Free order of operations self-checking maze
For a sub day

Emergency sub plans

Three no-prep days per grade built from the same self-checking activities, with everything the substitute needs.

See the sub plans
Questions

Activity pack questions

What does self-checking mean?

Every activity tells students when an answer is wrong: a wrong turn in the maze leads to a trap, a wrong answer in the secret message gives a letter that does not fit, and the error detective cases add up to a printed total. Students fix mistakes while they work instead of after you grade.

Do they work digitally?

Yes. Every pack includes self-grading Google Forms for its activities and both Quick Checks, with copy links, so you can assign them in Google Classroom.

How do I use them?

As a no-prep lesson on the topic, a math station, homework, early-finisher work, test review or a sub day. Each activity stands on its own, so you can use one at a time.

Is there a free one to try?

Yes. The free Order of Operations maze is a complete self-checking maze with its answer key.

Are they in a bundle?

Yes. Each pack is in its grade bundle (the three geometry packs have their own), and all 14 are in the 6th-8th grade bundle.

Standard codes refer to the Common Core State Standards for Mathematics. Math Class 678 is an independent publisher, not affiliated with, sponsored by, or endorsed by NGA Center or CCSSO. Every product is sold on Teachers Pay Teachers.