ILC 1st Grade Mathematics: Unit 6 Length Measurements Within 120 Units

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Course Repository

Grade Level

Course Format

Unit

License

CC BY

Course Description

This is unit 6 of 8 units. The sequence of units is available in the Read Me First Materials in each unit.

Section A: From Direct to Indirect Comparisons
In this section, students transition from direct comparison of lengths to indirect comparison. They reason about how they can compare the length of objects that cannot be easily lined up.
Section B: Measure by Iterating up to 120 Length Units
In this section, students measure the length of objects by iterating length units. They learn the conventions of length measurement and represent their measurements with a number and the name of the length unit. They understand that the length measurement of an object is the number of same-size length units that span it without gaps or overlaps.
Section C: All Kinds of Story Problems
In this section, students solve all types of story problems with unknowns in all positions. They interpret and write addition and subtraction equations that represent the problems.

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

Morgan Miller

Course Updates