CK-12

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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

Total lessons: 668

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(11 Ratings)

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1436
CK-12
Updated: 
Friday, August 5, 2016 - 2:53pm
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  • Math
  • Elementary (Grades K-2)
Basic Addition, one digit addition http://CK12.org
CK-12
Updated: 
Friday, July 15, 2016 - 1:33pm
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  • Elementary (Grades K-2)
Three to Six Digit Addition http://ck12.org
CK-12
Updated: 
Friday, August 5, 2016 - 2:53pm
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  • Math
  • Elementary (Grades K-2)
Adding Three Numbers with 2, 3, and 4 digits http://ck12.org
CK-12
Updated: 
Friday, July 15, 2016 - 1:33pm
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  • Math
  • Elementary (Grades K-2)
Estimation of Whole Numbers and Addition http://ck12.org
CK-12
Updated: 
Friday, July 15, 2016 - 1:33pm
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  • Math
  • Elementary (Grades K-2)
Measurement Tools http://ck12.org
CK-12
Updated: 
Wednesday, September 21, 2016 - 12:33pm
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  • Math
  • Elementary (Grades K-2)
Students learn to add and subtract positive and negative numbers.
CK-12
Updated: 
Friday, August 5, 2016 - 2:53pm
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  • Math
  • Elementary (Grades K-2)
Students will write and solve vertical addition problems with whole, multi-digit numbers.
CK-12
Updated: 
Wednesday, September 14, 2016 - 12:50pm
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  • Math
  • Elementary (Grades K-2)
Students will write and solve vertical subtraction problems with whole, multi-digit numbers.
CK-12
Updated: 
Thursday, August 11, 2016 - 12:25am
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  • Math
  • K-2, 3-5
Students write and solve multiplication problems with whole, multi-digit numbers.