Learning Resource Type

Classroom Resource

Rise and Shine Math Time: Line It Up! Parallel and Perpendicular Lines

Subject Area

Mathematics

Grade(s)

4

Overview

Susanna Post, 2021 Arkansas Teacher of the Year, explains a strategy for remembering the difference between parallel and perpendicular lines. In addition, she demonstrates the meanings of parallel and perpendicular lines by showing real-world examples. A practice page with examples and vocabulary is included as a resource.

    Mathematics (2019) Grade(s): 4

    MA19.4.27

    Draw points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parallel lines, and identify these in two-dimensional figures.

    Unpacked Content

    UP:MA19.4.27

    Vocabulary

    • Point
    • Line
    • Line segment
    • Ray
    • Right angle
    • Acute angle
    • Obtuse angle
    • Perpendicular lines
    • Parallel lines
    • Two dimensional figure
    • Vertex
    • Angle measure

    Knowledge

    Students know:
    • defining characteristics of geometric figures, such as points, lines, line segments, angles (right, acute, and obtuse), parallel lines, and perpendicular lines.

    Skills

    Students are able to:
    • Draw points, lines, line segments, rays, angles (right, acute, obtuse).
    • Draw parallel and perpendicular lines.
    • Identify points, lines, line segments, rays, angles, parallel lines, and perpendicular lines in two-dimensional figures.

    Understanding

    Students understand that:
    • points, lines, line segments, angles (right, acute, and obtuse), parallel lines, and perpendicular lines are defining characteristics of two dimensional shapes.
    Mathematics (2019) Grade(s): 4

    MA19.4.28

    Identify two-dimensional figures based on the presence or absence of parallel or perpendicular lines or the presence or absence of angles of a specified size.

    Unpacked Content

    UP:MA19.4.28

    Vocabulary

    • Two-dimensional figure
    • Parallel lines
    • Perpendicular lines
    • Angle
    • Right triangle

    Knowledge

    Students know:
    • Two lines are parallel if they never intersect and are an equal distance apart.
    • Two lines are perpendicular if they are at right angles to each other.
    • A right triangle is a triangle that has one right angle.

    Skills

    Students are able to:
    • Classify two-dimensional figures based on the presence or absence of parallel or perpendicular lines.
    • Classify two-dimensional figures based on the presence or absence of angles of a specified size.
    • Identify right triangles.

    Understanding

    Students understand that:
    • shapes are categorized based on attributes they possess in common such as angle size, side length, side relationships (parallel and perpendicular).
    Link to Resource

    CR Resource Type

    Audio/Video

    Resource Provider

    PBS
    Accessibility
    License

    License Type

    CUSTOM
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