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2-N-1-6

Page history last edited by Tashe Harris 6 years, 1 month ago

2.N.1.6 Use place value to compare and order whole numbers up to 1,000 using comparative language, numbers, and symbols (e.g. 425 >276, 73<107, page 351 comes after page 350, 753 is between 700 and 800).


In a Nutshell

Students enter second grade with an understanding of place value, comparing and ordering whole numbers up to 100. Second graders will continue this skill by developing the ability to compare and order whole numbers up to 1,000 and begin to use comparative language, numbers and symbols. In future grades, they will expand their knowledge of numbers up to 100,000 and compare and order those numbers.

Student Actions

Teacher Actions

  • Develop an accurate and appropriate procedural fluency when comparing and ordering numbers, using vocabulary and symbols (e.g. less than, greater than, equal to, <, >, =, after, before, between).

  • Make conjectures and generalize base ten understandings when comparing and ordering numbers up to 1,000.

  • Communicate an understanding of numbers by comparing and ordering numbers up to 1,000.
  • Pose purposeful questions to assess and advance students’ reasoning and sense making about ordering and comparing numbers.

  • Build procedural fluency of comparing and ordering numbers  from conceptual understanding of the base ten number system.

  • Facilitate meaningful discourse to build shared understandings of comparing and ordering whole numbers up to 1,000.

Key Understandings

Misconceptions

Students would have this objective mostly covered from 2.N.1.1

  • How the base ten number system works (i.e., grouping and place value).

  • The significance of “0” in situations where one group is complete.

  • 10 is ten ones - called a “ten”

  • 100 is ten tens - called a “hundred”

  • 1000 is ten hundreds - called a “thousand”

  • The significance of the symbols < and >

  • Students only look at the first or the last digit in a multi-digit number when comparing and ordering numbers.   

  • Students order numbers based on the value of their digits instead of their place value. For example, 96>312 because 9 and 6 are bigger than 3, 1, and 2.


OKMath Framework Introduction

2nd Grade Introduction

2nd Grade Math Standards

 

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