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Curriculum
- Literacy
  
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  Core Curriculum
  
  Into Literature, 6-12
  
  Into Reading, K-6
  
  See all Literacy
  
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  English Language Development
  
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  Intervention
  
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  Go Math!, K-6
  
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  Discover a solution that provides K–8 students in Tiers 1, 2, and 3 with the personalized intervention and practice they need to excel.
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  Coachly
  
  Teacher's Corner
  
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  2025-2026 Classroom Activities and Holidays Calendar
  
  Download our free activities calendar for fun lessons to do with your class, plus engaging ways to commemorate and celebrate events throughout the year.
  
  Building Your School Culture: An Administrator's Guide
  
  Get our free administrator’s guide to building a positive school culture, filled with practical advice, real-world examples, and resources for further exploration.
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Geometric shapes overlaid on a playground to show polygons in real life

Teaching about Classifying Polygons

Teach students about the different types of polygons in mathematics, which can be described as flat, closed figures with three or more sides.

Richard Blankman
Shaped Executive Editor

August 10, 2021

7 8 9 10

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