ILC 3rd Grade Mathematics: Unit 3 Wrapping Up Addition and Subtractions Within 1,000

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Course Repository

Grade Level

Course Format

Unit

License

CC BY

Course Description

This is unit 3 of 8 units. The sequence of units is available in the Read Me First Materials in each unit.

Section A: Add within 1,000|
In this section, students will revisit numbers within 1,000 and consider ways to decompose (break apart) the numbers based on place value (hundreds, tens, and ones).
Section B: Subtract within 1,000
In this section, students will analyze and use algorithms for subtraction, while continuing to use base-ten blocks and diagrams to think about subtraction.
Section C: Round within 1,000
In this section, students will learn to round whole numbers to the nearest ten or hundred, using number line diagrams in their reasoning.
Section D: Solve Two-Step Problems
In this section, students will apply their work with addition, subtraction, and multiplication to solve problems that require two steps,

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

Courtney Hawkins

Course Updates