Number Line

A number line is a visual representation of numbers in order from least to greatest. It is a straight line with numbers placed at equal intervals. The numbers to the right of zero are positive, and the numbers to the left of zero are negative.

On a number line, each point corresponds to a number. For example, if you have the number 5, you would locate the point labeled 5 on the number line. Similarly, if you have the number -3, you would locate the point labeled -3 on the number line.

Number lines are useful for understanding the concept of magnitude, comparing numbers, and performing operations such as addition and subtraction. For example, to add 3 to 5, you would start at 5 on the number line and move 3 units to the right to reach the sum, which is 8.

Overall, the number line is a helpful tool for visualizing and understanding the relationship between numbers and their positions in relation to each other.

◂Math Worksheets and Study Guides Third Grade. Units of Measure

The resources above cover the following skills:

Measurement (NCTM)

Understand measurable attributes of objects and the units, systems, and processes of measurement.

Understand such attributes as length, area, weight, volume, and size of angle and select the appropriate type of unit for measuring each attribute.

Understand the need for measuring with standard units and become familiar with standard units in the customary and metric systems.

Understand that measurements are approximations and how differences in units affect precision.

Apply appropriate techniques, tools, and formulas to determine measurements.

Select and apply appropriate standard units and tools to measure length, area, volume, weight, time, temperature, and the size of angles.

Connections to the Grade 3 Focal Points (NCTM)

Measurement: Students in grade 3 strengthen their understanding of fractions as they confront problems in linear measurement that call for more precision than the whole unit allowed them in their work in grade 2. They develop their facility in measuring with fractional parts of linear units. Students develop measurement concepts and skills through experiences in analyzing attributes and properties of two-dimensional objects. They form an understanding of perimeter as a measurable attribute and select appropriate units, strategies, and tools to solve problems involving perimeter.

Number Line

[Number Line] Related Worksheets and Study Guides:

◂Math Worksheets and Study Guides Third Grade. Units of Measure

The resources above cover the following skills: