Goal: The goals this week are for you to
ResourcesAssignments: Please scan as necessary, and put all assignments in the dropbox.
Paths to the standard algorithm:
Read and watch this discussion of breaking down multidigit multiplication using arrays and the distributive law, and recording multiplication using the expanded and the standard algorithm. (note: this page includes links to several videos, and hence is longer than it appears).
Assignment 33: Expanded and standard algorithms assignment
Mental math and the lattice algorithm:
Read and watch this discussion of mental multiplication strategies and the lattice algorithm.
Assignment 34: Mental arithmetic multiplication and the lattice algorithm
Assignment 35: Figure out the error patterns and identify the alternate algorithms in the assignment Multiplication error patterns and algorithms
Partitive division and long division
Do first: open the base 10 blocks Smart notebook (see resources), and use them to divide 860 ÷ 6 using a partitive interpretation (make 6 groups)
Assignment 36: Manipulatives and partitive long division assignment (video)
Measurement division and the scaffolding algorithm
Assignment 37: Scaffolding division assignment
Why can't you divide by 0?
Read: Bassarear 4th ed pg 193 (3rd ed.