Formative Assessment

Assessment Problem: 

Is there a value for x that will make the following statement true?

(6x – 8 – 15x) + 12 > (6x – 8 – 15x) + 6 

Mathematical Issues: 

Getting students to think about the relationships in the problem prior to mechanically doing procedures.

Domain: 
Algebraic Relations
Theme: 
Thinking about Inequalities
Common Core Standards: 
6.EE.5
6.EE.8
Encyclopedia Entry: 
http://www.algebraicthinking.org/wiki/algebraic-relations-inequalities
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.