ILC 2nd Grade Mathematics: Unit 4 Addition and Subtraction on the Number Line

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Course Repository

Grade Level

Course Format

Unit

License

CC BY

Course Description

This is unit 4 of 9 units. The sequence of units is available in the Read Me First Materials in each unit.

Section A:.The Structure of the Number Line
In this section, students learn about the number line as a visual tool for understanding: numbers and number relationships, numbers relative to zero, and numbers relative to each other.
Section B: Add and Subtract on a Number Line
In this section, students learn to represent sums and differences on the number line. Students use their understanding of the number line to write equations. Students use the number line to represent computational strategies based on place value and the properties of addition.

Standards

These instructional materials are available to assist educators in implementing Iowa’s Academic Standards. Curriculum leaders and teachers should review these instructional materials to ensure full implementation of Iowa’s Academic Standards in the local curriculum. Each module identifies standards that are addressed and assessed.

Prerequisites

None

SCED Code

Source Name

Illustrative Mathematics. (2021). K-5 Math version. Kendall Hunt Publishing. https://im.kendallhunt.com/k5/curriculum.html

Lead developer

Tiffany Herr

Course Updates