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

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.

Vocabulary

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