CK-12

CK-12 provides open-source high quality K-12 learning platform to help teachers provide learning opportunities for students globally. Free access to 5000+ high-quality, customizable educational concepts in multiple modalities (text, videos, quizzes, images etc.) suited to different learning levels will allow teachers, students and others to innovate and experiment with new models of learning. Learn more at: www.ck12.org/teacher

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  • Elementary (Grades 3-5)
Students will learn how to round whole numbers in order to estimate sums and differences.
  • Math
  • Elementary (Grades 3-5)
Students will learn how to round and find compatible whole numbers in order to estimate products and quotients.
CK-12
Updated: 
2016
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  • Math
  • 3-5, MS
Students will learn how to identify and classify numbers as either prime or composite.
CK-12
Updated: 
2016
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  • Math
  • Middle School
Students will discover how to determine the factor pairs of given numbers.
CK-12
Updated: 
2016
0 Comments
  • Math
  • 3-5, MS
Students will learn to find the Greatest Common Factor (GCF) of two numbers.
  • Math
  • 3-5, MS
Students will learn to find the greatest common factors of numbers using lists.
  • Math
  • 3-5, MS
Students learn to find the greatest common factor of a given number using factor trees.
  • Math
  • 3-5, MS
Students will discover how to determine the factors of given numbers using divisibility rules.
  • The Number System
  • Elementary (Grades 3-5)
Students learn to order fractions from least to greatest and greatest to least using lowest common denominators.
  • The Number System
  • Elementary (Grades 3-5)
Students learn to order fractions from least to greatest and greatest to least using lowest common denominators.