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Material contains a total of 60 different sets (math activities) of trimino on the topic addition up to 100 arranged as follows:

• 30 trimino in a triangle shape with 9 pieces
• 30 trimino in a star shape with 12 pieces
• black-and-white versions of all 60 trimino sets for ink saving
• answer key for all trimino sets

Intended Audience

• teachers in the classroom
• instructors
• students for practice

How to Use the Material
Activity for part of a lesson, review, or homework.

Instructions for Working with the Material
Print the pages in A4 or A3 size (Letter or Tabloid). Each student or group of students receives a sheet with one type of trimino, which they cut into individual pieces, shuffle, and then assemble into a star or triangle shape. The number of available trimino sets allows you to:

• give each student the same trimino and repeat the activity in a different lesson
• give each student a different trimino
• give groups the same or different trimino sets

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: /teaching-resource/resource-13276917
Graphic elements created with the pdflatex TikZ package