This is a sample task from achievethecore.org. While simply constructed, 6.RP The Escalator addresses aspects of both 6.RP.1 "Understand the concept of a ratioβ and 6.RP.2 βUnderstand the concept of a unit rate a/b associated with a ratio a:b with bβ 0, and use rate language in the context
of a ratio relationship." The simple extension of a traditional multiple choice item to a "choose all that apply" allows us to ask questions about the same context from the different perspectives afforded by the different RP standards in 6th grade.
CCSS.RP.A.1,2
