Submitting Organization: Illustrative Mathematics
Grade Levels: 6th Grade
Subject Area: Math
Standards Alignment: Common Core State Standards – Math
6.RP.A.2 This task connects to grade 6 content standards 6.RP.A.2 and 6.RP.A.3a, about understanding and using unit rates. It also connects to mathematical practice standard MP.2: Reason abstractly and quantitatively.
Description of the Activity:
The goal of this activity is to compare unit rates in a real world context. Some of the numbers, for example, 12 tickets for $5, do not give a whole number of cents per ticket. There are, however, good methods to compare this rate to the other rates without actually calculating the unit rate. In addition to solving the problem by finding unit rates, students could also make a ratio table. One advantage to the ratio table is that it supports the possibility of finding a unit rate while also allowing other thinking.
- Would it be cheaper to buy 50 tickets at once (for $25) or buy 25 tickets twice?
- Can you find two deals that have the same price per ticket?
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