Assessment Problem:

Given 5a = b + 5, which is larger: a or b?

Domain:

Algebraic Relations

Theme:

Solving inequalities

Common Core Standards:

6.EE.5

Research References:

Lim, K. H. (2006). Characterizing students' thinking: Algebraic inequalities and equations. Paper presented at the 28th annual meeting of the North American Chapter of the International Group for the Psychology of Mathematics Education, Mérida, México: Universidad Pedagógica Nacional.