Exam 9: Extending Number Concepts and Number Systems

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Explain the role that prime and composite numbers play in helping children develop number sense.

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Prime and composite numbers play a crucial role in helping children develop number sense by providing them with a deeper understanding of the relationships between numbers.

Prime numbers, which are numbers that can only be divided by 1 and themselves, help children understand the concept of factors and multiples. By learning about prime numbers, children can grasp the idea that some numbers have only two factors, while others have multiple factors. This understanding lays the foundation for more advanced mathematical concepts such as prime factorization and the fundamental theorem of arithmetic.

On the other hand, composite numbers, which are numbers that have more than two factors, help children recognize patterns and relationships between numbers. By identifying composite numbers, children can see how numbers can be broken down into smaller factors, which in turn helps them understand the concept of multiplication and division.

Overall, prime and composite numbers provide children with a framework for understanding the building blocks of numbers and how they relate to each other. This knowledge helps children develop a strong number sense, which is essential for success in more advanced mathematical concepts.

Teacher Licensing Examination Questions NAEP: What number is 100 more than 5,237?

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C

When estimation skills are developed, students need comparisons, also called ____________, to help them make reasonable estimates.

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B

Give three ways you could use real-life examples in your class to help children to understand large numbers.

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Prime numbers are used for all of the following except:

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The correct answer to rounding to the nearest ten for the number 4,157 is:

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The correct symbolic representation of four hundred thirty-five million two hundred six thousand four is:

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The main difference between prime and composite numbers is that:

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Which of the following is a nonproportional place-value manipulative?

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Performance Assessment Place Value. Observe students playing the bankers game or other trading activities. Determine whether students are proficient with the trading process for trading up and for trading down.

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Working with large numbers such as 100,000 is difficult because:

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Reasonableness with numbers means that students can:

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Place-Value Mats. Have students display on place value mats several different numbers in base-10 using proportional (flat, rods, units)and non-proportional materials (chips).

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Explain why looking for patterns and relationships is fundamental to helping children develop number sense, particularly in middle school.

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Which of the following is a proportional place-value item?

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The correct reading of 43,507,009 is:

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The number 1 is:

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By how much will the value of the number 4,372 increase if the 3 is replaced with a 9?

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Give two reasons why integers are difficult for elementary students.

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Explain the differences between proportional and nonproportional models for the base-10 system and give two examples for each. Why would a teacher ever use nonproportional models?

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