MATH 392 Lecture 4: August 31, 2016 (Invented Strategies)
3 Sep 2016
School
Department
Course
Professor
Document Summary
Invented strategies will need to memorize these. Action words assist students in understanding word problems: easier for kids to do first. May be clumped together or separated can jump in either order (ones first or tens first, etc. ) as students get older, they will begin jumping from the larger number. May jump to an easy clump and then finish jumping with whatever is left. Ex: 14+29 = 29 + 1 = 30 +10 = 40 +1 + 1 + 1 = 43: transformation strategies. Borrowing from the other number transform both numbers. Addition: what you do to one, you do the opposite to the other. Subtraction: must perform equal operations to both numbers: compensation strategies. Borrowing numbers and then getting rid of them at the end goal: get to nice, easy numbers . Key: correcting at the end to compensate for how you changed the numbers: how to remember the difference between transformation and compensation:
