Course description
Using algebra tiles and T-charts to help middle school students gain conceptual understanding of addition and subtraction of negatives and positives.
Modeling operations working from the concrete to the symbolic.
This is the first in a two-part series on Expressions and Equations using Algebra Tiles for the physical and mathematical modeling.
Part One – Operations with Integers
Part Two – Algebraic Expressions
About the developer:
Suzanne K. Fox, Staff Development Specialist, Oswego Center for Instruction, Technology & Innovation (CiTi)