Formative Assessment

Assessment Problem: 

p and q are odd integers between 20 and 50.

For these values, is 5p–q>2p+15 always true, sometimes true or never true? 

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.