# Scale matters: ones

Learning Material  |  Interactive Lesson  |  RAR

Description
Explore the use of scale on a number line. Select a ruler displaying a helpful scale such as ones. Look at a pair of numbers such as 28 and 32 marked on a number line. Identify the number corresponding to another point. Or locate another point on the number line to complete a series of three numbers. Apply a marked scale to help estimate the relative distances. This learning object is one in a series of seven objects. Some objects in the series are also packaged as a combined learning object.
Objective
1. Students locate numbers on a given scale.
2. Students use a scale to measure discrete quantities.
3. Students locate numbers (including negative numbers) accurately on a continuous scale.
4. Students identify how variations in unit size relate proportionally to the number of units that will fit into a given space.

#### Curriculum Information

 Education Type K to 12 Grade Level Grade 1, Grade 2 Learning Area Mathematics Content/Topic Numbers and Number Sense Intended Users Educators, Learners, Students Competencies