Videos of Strategies and Alternative Algorithms
Multi-digit addition (2nd and 3rd grade)- Drawing Tens and Ones, Using the Number Line
Multi-digit subtraction (2nd and 3rd grade)- Algorithm and the open number line
Multi-digit multiplication- variety of strategies
Multi-digit multiplication (4th and 5th grade)- breaking numbers apart and the open array
Multi-digit division- variety of strategies
Multi-digit division (4th and 5th grade)- Using multiplication to solve a division problem
Multiplying decimals (5th and 6th grade)- Breaking numbers apart and the open array
Dividing decimals (5th and 6th grade)- Making a friendlier problem
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