Please view the following videos. The video demonstrations will help you better understand the strategeis we are using in class as well as the vocabulary.
I have also attached a file below that contains several very short videos we have used during our instruction. These wcpss videos are the various strategies to add and subtract numbers.
Subtraction with place value blocks:
https://www.youtube.com/watch?v=LYNwS9rUza8
Subtraction with proof drawings:
https://www.youtube.com/watch?v=sH5Fy9xIXPc
Subtraction using a Number Line:
https://www.youtube.com/watch?v=8kNANxcTmDI
Subtraction using Expanded Form:
https://www.youtube.com/watch?v=M8XDuS6diV0
Adding Strings of numbers Quarter 3
Here is a good video for parents or students about how to add strings (3 or more numbers) together quickly and usually using "Mental Math"
https://www.youtube.com/watch?v=8VBEOMFFJp4
Representing Numbers in Multiple Ways http://www.educreations.com/lesson/view/representnumbers/9325059/?s=aQt0N9&ref=appemail
Partner houses
http://www.educreations.com/lesson/view/partner-houses/9518102/?s=tY2ge7&ref=appemail
Make a Ten Strategy for adding
http://www.educreations.com/lesson/view/make-a-ten/9509529/?s=ZikYbo&ref=appemail
Using Math Mountains to Set Up Equations and Solve StoryProblems
http://www.educreations.com/lesson/view/math-mountains/9356080/?s=diV7mE&ref=appemail
Using Different Strategies to Solve Word Problems
http://www.educreations.com/lesson/view/using-different-strategies/9398598/?s=JqSPZp&ref=appemail
Writing 8 equations from a math mountain
http://www.educreations.com/lesson/view/equations-from-a-math-mountain/9726811/?s=vPCPXo&ref=appemail
Adding two digit numbers on a number line:
http://www.educreations.com/lesson/view/adding-two-digit-numbers-on-a-number-line/13769232/?s=QDuDXc&ref=appemail
https://www.youtube.com/watch?v=rTSeDaXCUZk
proof drawings of 3 digit numbers
I have also attached a file below that contains several very short videos we have used during our instruction. These wcpss videos are the various strategies to add and subtract numbers.
Subtraction with place value blocks:
https://www.youtube.com/watch?v=LYNwS9rUza8
Subtraction with proof drawings:
https://www.youtube.com/watch?v=sH5Fy9xIXPc
Subtraction using a Number Line:
https://www.youtube.com/watch?v=8kNANxcTmDI
Subtraction using Expanded Form:
https://www.youtube.com/watch?v=M8XDuS6diV0
Adding Strings of numbers Quarter 3
Here is a good video for parents or students about how to add strings (3 or more numbers) together quickly and usually using "Mental Math"
https://www.youtube.com/watch?v=8VBEOMFFJp4
Representing Numbers in Multiple Ways http://www.educreations.com/lesson/view/representnumbers/9325059/?s=aQt0N9&ref=appemail
Partner houses
http://www.educreations.com/lesson/view/partner-houses/9518102/?s=tY2ge7&ref=appemail
Make a Ten Strategy for adding
http://www.educreations.com/lesson/view/make-a-ten/9509529/?s=ZikYbo&ref=appemail
Using Math Mountains to Set Up Equations and Solve StoryProblems
http://www.educreations.com/lesson/view/math-mountains/9356080/?s=diV7mE&ref=appemail
Using Different Strategies to Solve Word Problems
http://www.educreations.com/lesson/view/using-different-strategies/9398598/?s=JqSPZp&ref=appemail
Writing 8 equations from a math mountain
http://www.educreations.com/lesson/view/equations-from-a-math-mountain/9726811/?s=vPCPXo&ref=appemail
Adding two digit numbers on a number line:
http://www.educreations.com/lesson/view/adding-two-digit-numbers-on-a-number-line/13769232/?s=QDuDXc&ref=appemail
https://www.youtube.com/watch?v=rTSeDaXCUZk
proof drawings of 3 digit numbers