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CCSS.Math.Practice.MP1 Make sense of problems and persevere in solving them.
Students solve problems by applying their understanding of operations with whole numbers, decimals, and fractions including mixed numbers. They solve problems related to volume and measurement conversions. Students seek the meaning of a problem and look for efficient ways to represent and solve it. They may check their thinking by asking themselves: "What is the most efficient way to solve the problem? Does this make sense? Can I solve the problem in a different way?". http://www.azed.gov/standards-practices/files/2011/10/2010mathgr5.pdf
Students solve problems by applying their understanding of operations with whole numbers, decimals, and fractions including mixed numbers. They solve problems related to volume and measurement conversions. Students seek the meaning of a problem and look for efficient ways to represent and solve it. They may check their thinking by asking themselves: "What is the most efficient way to solve the problem? Does this make sense? Can I solve the problem in a different way?". http://www.azed.gov/standards-practices/files/2011/10/2010mathgr5.pdf
Example
