Math - 2018-19

3.11 - Points, Lines, Line Segments, Rays and Angles

The student will 

  • identify and draw representations of points, lines, line segments, rays, and angles.



Adopted: 2016

BIG IDEAS

  • So that I can identify the parts, or components, of plane polygons
  • So that I can describe and compare real-world objects that are around me

UNDERSTANDING THE STANDARD

  • A point is an exact location in space. It has no length, width, or height. 
  • A line is a collection of points extending indefinitely in both directions. It has no endpoints.
  • A line segment is part of a line. It has two endpoints and includes all the points between and including those endpoints.
  • A ray is part of a line. It has one endpoint and extends indefinitely in one direction.
  • An angle is formed by two rays that share a common endpoint called the vertex.  Angles are found wherever lines or line segments intersect.
  • Geometric notation to name lines, line segments and rays is included in grade four.

ESSENTIALS

The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representations to

  • Identify examples of points, line segments, rays, angles, and lines. 
  • Describe endpoints and vertices as they relate to lines, line segments, rays, and angles.
  • Draw representations of points, line segments, rays, angles, and lines, using a ruler or straightedge.

KEY VOCABULARY

Updated: Aug 22, 2018