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Page history last edited by Tashe Harris 3 years, 8 months ago

4.N.2.7  Compare and order decimals and whole numbers using place value, a number line and models such as grids and base 10 blocks. 

In a Nutshell

Students will compare and order decimals and whole numbers.  The comparisons may involve concrete models, such as base-ten blocks, or written models, such as number lines, and should incorporate students' prior understanding of the place value system.

Student Actions

Teacher Actions

  • Develop a deep and flexible conceptual understanding by comparing and ordering decimals and whole numbers using concrete, pictorial, and symbolic representations.  

  • Develop mathematical reasoning by applying prior knowledge of the place value system to comparing and ordering tasks, and making arguments to justify thinking.

  • Develop the ability to communicate mathematically by sharing comparison strategies and results with peers, using models, in writing, and orally.


  • Use and connect mathematical representations by modeling the comparison of decimals and whole numbers in a variety of formats.

  • Implement tasks that promote reasoning and problem solving by introducing real-world scenarios which require students to compare and order decimals and whole numbers, providing multiple entry points and allowing for varied solution strategies.

  • Pose purposeful questions by asking students to explain their comparisons and justify their thinking.

Key Understandings


  • Whole numbers and decimals can be compared and ordered based on the rules and patterns of the place value system.

  • Whole numbers and decimals can be compared and ordered using various representations (concrete models, number lines, symbols).


  • A decimal number expressed as hundredths is greater than a decimal number expressed as tenths (.62 is greater than .8 because 62 is greater than 8).

  • The words tens and tenths, or hundreds and hundredths, are interchangeable.

  • The word ‘and’ can be used anywhere when saying a number and has no significance.  The use of the word ‘and’ actually signifies the decimal point.

OKMath Framework Introduction

4th Grade Introduction

4th Grade Math Standards




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