2.N.4.1 Determine the value of a collection(s) of coins up to one dollar using the cent symbol.
In a Nutshell
Students entering second grade can count by ones, fives and tens to calculate the value of a collection of coins. In second grade, students will apply counting strategies to find the value of a collection of coins up to one dollar, but do NOT use the dollar sign ($) or decimal. Instead they use ONLY the cent sign. Second graders also begin to use quarters when determining the value of a collection of coins. In third grade, students will use addition to determine the value of a collection of coins up to one dollar using the cent symbol and a collection of bills up to twenty dollars.
Student Actions
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Teacher Actions
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Develop accurate fluency for computing collection of coins problems through a sophisticated understanding of counting strategies.
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Develop a deep and flexible conceptual understanding of operations with coins while making mathematical and real-world connections (e.g., modeling amounts of money using quarters, dimes, nickels and pennies to show a given amount in more than one way).
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Connect mathematical representations to deepen understanding of determining the value of a collection of coins.
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Build procedural fluency from conceptual understanding as students solve problems involving coins up to one dollar.
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Key Understandings
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Misconceptions
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Identify and know the value of a quarter.
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Find the value of a group of quarters, dimes, nickels and pennies.
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Use the ยข symbol properly.
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The value of a coin is related to its size; the larger the coin, the greater the value.
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The number of coins in the collection is the only determinant of its value.
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A nickel is a quarter or vice versa.
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Counting the coins is the same as counting their value.
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OKMath Framework Introduction
2nd Grade Introduction
2nd Grade Math Standards
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