Welcome to The Portal

All the supplemental math activities you'll ever need for home or school!

Access to over one thousand Math Activities & more added every week!


Within the Trapezium Portal, you will find activities that will help you:

  • Teach a math class with markedly different learning profiles
  • Challenge advanced learners without losing the rest of the class
  • Develop automaticity of basic facts in a joyful, confidence-building way
  • Engage students in problem-solving at their “just right” math level

Our activities allow teachers to differentiate

instruction within the lesson!


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