The resource contains a total of 30 different tetromino sets (math activities) on the topic multiplication of rational numbers arranged as follows:

• 30 tetromino sets composed of 9 square pieces each,
• black-and-white versions of all 30 tetromino sets for ink saving,
• answer key for all tetromino sets.

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Intended Audience

• teachers in the classroom,
• instructors,
• students for practice.

How to Use the Resource

Use this activity as part of a lesson, review session, or homework assignment.

Instructions for Working with the Resource

Tetromino works similarly to trimino or domino, but it is composed of square puzzle pieces. Each side of the square contains either a math problem or a matching answer. To complete the puzzle, students must correctly match the sides of the squares so that problems and answers align. Print the pages in Letter or Tabloid size (A4 or A3). Each student or group receives a sheet with one tetromino puzzle, cuts out the squares, shuffles them, and assembles the pieces by matching the sides. The number of sets allows you to:

• give all students the same tetromino and reuse the activity in another lesson,
• give each student a different tetromino,
• assign identical or different sets to small groups.

Free Sample Material Recommendation

Not sure what the materials look like as a document? Download my sample material to get an idea! You can find the sample material at: https://www.teacherspayteachers.com/Product/Addition-up-to-20-Tetromino-Math-Activity-13793406.

Graphic elements created with the pdflatex TikZ package