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 about CK-12 at: https://www.ck12.org/teacher/

Lessons 668
Views 89,928
Downloads 1,460
CK-12
Updated: 
2016
0 Comments
  • Math
  • Middle School
Identify and classify numbers as either prime or composite. <BR> composite number Divisibility Rules Factors MAT.ARI.160.L.1 prime number
CK-12
Updated: 
2016
0 Comments
  • Math
  • Middle School
Determine the factor pairs of given numbers. <BR> factor MAT.ARI.171.L.1
  • Math
  • Middle School
Identify common factors.
  • Math
  • Middle School
Find the greatest common factor of a given number using lists. <BR> factor GCF greatest common factor MAT.ARI.172.1.L.1 Product
  • Math
  • Middle School
Find the greatest common factor of a given numbers using factor trees. <BR> factor factor tree GCF greatest common factor MAT.ARI.172.2.L.1...
  • Math
  • Middle School
Determine the factors of given numbers using divisibility rules. <BR> Divisibility Rules Factors MAT.ARI.173.L.1
CK-12
Updated: 
2016
0 Comments
  • Math
  • Middle School
Find the least common multiple of a given pair of numbers using lists. <BR> common multiple LCM least common multiple MAT.ARI.174.L.1 multiple
  • Math
  • Middle School
Compare fractions using lowest common denominators. <BR> denominator Equivalent fraction lowest common denominator MAT.ARI.174.1.L.1 numerator...
  • Math
  • Middle School
Order fractions from least to greatest and greatest to least using lowest common denominators. <BR> denominator Equivalent fractions lowest...
CK-12
Updated: 
2016
0 Comments
  • Math
  • Middle School
Write the prime factorization of given numbers. <BR> composite number Divisibility Rules factor tree Factors MAT.ARI.175.L.1 prime...