ALEX Classroom Resource

  

Grade 6 Mathematics Module 3, Topic B: Order and Absolute Value

  Classroom Resource Information  

Title:

Grade 6 Mathematics Module 3, Topic B: Order and Absolute Value

URL:

https://www.engageny.org/resource/grade-6-mathematics-module-3-topic-b-overview

Content Source:

EngageNY
Type: Lesson/Unit Plan

Overview:

In Module 3, Topic B, students apply their understanding of a rational number’s position on the number line (6.NS.C.6c) to order rational numbers. Students understand that when using a conventional horizontal number line, the numbers increase as you move along the line to the right and decrease as you move to the left. They recognize that if a and b are rational numbers and a < b, then it must be true that -a > -b. Students compare rational numbers using inequality symbols and words to state the relationship between two or more rational numbers. They describe the relationship between rational numbers in real-world situations and with respect to numbers’ positions on the number line (6.NS.C.7a, 6.NS.C.7b). For instance, students explain that -10° F is warmer than -11º F because -10 is to the right (or above) -11 on a number line and write -10° F > -11º F. Students use the concept of absolute value and its notation to show a number’s distance from zero on the number line and recognize that opposite numbers have the same absolute value (6.NS.C.7c). In a real-world scenario, students interpret absolute value as magnitude for a positive or negative quantity. They apply their understanding of order and absolute value to determine that, for instance, a checking account balance that is less than -25 dollars represents a debt of more than $25 (6.NS.C.7d).

Content Standard(s):
Mathematics
MA2015 (2016)
Grade: 6
9 ) Understand a rational number as a point on the number line. Extend number line diagrams and coordinate axes familiar from previous grades to represent points on the line and in the plane with negative number coordinates. [6-NS6]

a. Recognize opposite signs of numbers as indicating locations on opposite sides of 0 on the number line; recognize that the opposite of the opposite of a number is the number itself, e.g., - (-3) = 3, and that 0 is its own opposite. [6-NS6a]

b. Understand signs of numbers in ordered pairs as indicating locations in quadrants of the coordinate plane; recognize that when two ordered pairs differ only by signs, the locations of the points are related by reflections across one or both axes. [6-NS6b]

c. Find and position integers and other rational numbers on a horizontal or vertical number line diagram; find and position pairs of integers and other rational numbers on a coordinate plane. [6-NS6c]


NAEP Framework
NAEP Statement::
8A2c: Graph or interpret points represented by ordered pairs of numbers on a rectangular coordinate system.

NAEP Statement::
8NPO1d: Write or rename rational numbers.

NAEP Statement::
8NPO1e: Recognize, translate or apply multiple representations of rational numbers (fractions, decimals, and percents) in meaningful contexts.

NAEP Statement::
8NPO1g: Find or model absolute value or apply to problem situations.

NAEP Statement::
8NPO1h: Order or compare rational numbers (fractions, decimals, percents, or integers) using various models and representations (e.g., number line).

NAEP Statement::
8NPO5e: Apply basic properties of operations.



Alabama Alternate Achievement Standards
AAS Standard:
M.AAS.6.9a- Identify positive and negative numbers on a number line.
M.AAS.6.9b- Locate or plot positive and negative numbers on a number line.
M.AAS.6.9c - Find given points between -10 and 10 on both axes of a coordinate plane.


Mathematics
MA2019 (2019)
Grade: 6
12. Explain the meaning of absolute value and determine the absolute value of rational numbers in real-world contexts.
Unpacked Content
Evidence Of Student Attainment:
Students:
  • Write, interpret, and explain the absolute values of the quantities.
  • Distinguish comparisons of absolute value from statements about order (students will use logical reasoning to explain how an account balance less than $30 represents a debt greater than $30).
Teacher Vocabulary:
  • Absolute value
  • Inequality
Knowledge:
Students know:
  • The meaning of absolute value and determine the absolute value of rational numbers in real-world contexts.
Skills:
Students are able to:
  • Understand that the absolute value of a number is the distance from zero in mathematical and real-world situations.
Understanding:
Students understand that:
  • the absolute value of a number is its distance from zero.
Diverse Learning Needs:
Essential Skills:
Learning Objectives:
M.6.12.1: Define absolute value and rational numbers.
M.6.12.2: Recall how to order numbers.
M.6.12.3: Give examples of the magnitude for a positive or negative quantity in a real-world situations using absolute value.
M.6.12.4: Recognize the absolute value of a rational number is its' distance from 0 on a vertical and horizontal number line.

Prior Knowledge Skills:
  • Model writing ordered pairs.
  • Identify the x- and y- values in ordered pairs.
  • Label the vertical axis (y).
  • Label the horizontal axis (x).
  • Define ordered pair of numbers, quadrant one, coordinate plane, and plot points.
Mathematics
MA2019 (2019)
Grade: 6
13. Compare and order rational numbers and absolute value of rational numbers with and without a number line in order to solve real-world and mathematical problems.
Unpacked Content
Evidence Of Student Attainment:
Students:
  • Write, interpret, and explain inequalities that show order of the given numbers including absolute values of the quantities.
  • Given contextual and mathematical situations involving quantities that can be represented as positive or negative rational numbers including absolute values of the quantities.
Teacher Vocabulary:
  • Absolute Value
  • Inequalities
Knowledge:
Students know:
  • How to use and interpret inequality notation with rational numbers and absolute value.
  • Strategies for comparing and ordering rational numbers and the absolute value of rational numbers with and without a number line in order to solve real-world and mathematical problems.
Skills:
Students are able to:
  • Use mathematical language to communicate the relationship between verbal representations of inequalities and the related number line and algebraic models.
  • Distinguish comparisons of the absolute value of positive and negative rational numbers from statements about order.
  • Use number line models to explain absolute value concepts in order to solve real-world and mathematical problems.
Understanding:
Students understand that:
  • The absolute value of a number is its distance from zero on a number line regardless of direction,
  • When using number lines to compare quantities those to the left are less than those to the right.
Diverse Learning Needs:
Essential Skills:
Learning Objectives:
M.6.13.1: Define rational number.
M.6.13.2: Plot pairs of integers and/or rational numbers on a coordinate plane.
M.6.13.3: Arrange integers and/or rational numbers on a horizontal or vertical number line.
M.6.13.4: Locate the position of integers and/or rational numbers on a horizontal or vertical number line.
M.6.13.5: Evaluate a statement about order using comparisons of absolute value.
M.6.13.6: Recall how to order positive and negative numbers. (Use number line if needed.).

Prior Knowledge Skills:
  • Locate positive numbers on a vertical number line.
    Examples: thermometer, map.
  • Locate positive numbers on a horizontal number line.
  • Locate negative numbers on a horizontal number line.
  • Label x- and y-axis and zero on a coordinate.
  • Illustrate vertical and horizontal number lines.
  • Specify locations on the coordinate system.
  • Define x-axis, y-axis, and zero on a coordinate.
  • Define ordered pair of numbers.
  • Interpret data using graphs including bar, line, and circle graphs, and Venn diagrams.
  • Display data by making a line plot where the horizontal scale is marked off in appropriate units—whole numbers, halves, or quarters.
Tags: absolute value, inequality, integer, negative, number line, ordering, positive, rational number
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There are seven lessons in this topic.

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  This resource provided by:  
Author: Hannah Bradley
Alabama State Department of Education