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 89,906
Downloads 1,460
  • Math
  • Middle School
Students learn how to compare and order integers by using a number line and inequality symbols such as >, <, and =.
CK-12
Updated: 
2016
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  • Math
  • 3-5, MS
Students learn how to to identify and apply number properties in the addition and multiplication of decimals.
CK-12
Updated: 
2016
0 Comments
  • Math
  • 3-5, MS
Students learn how to add and subtract decimals by lining up the decimal point.
  • Math
  • 3-5, MS
Students learn how to express combinations of coins as decimal amounts.
CK-12
Updated: 
2016
0 Comments
  • Math
  • 3-5, MS
Students learn to subtract decimals by lining up the decimal points.
CK-12
Updated: 
2017
1 Comment
  • Science
  • 3-5, MS
Students will learn what configurations of the Sun, Moon and Earth leads to solar and lunar eclipses and what happens during them.
CK-12
Updated: 
2016
1 Comment
Students will learn how energy can be generated through nuclear reactions. Energy from nuclear power also has benefits and costs.