Wednesday, August 22, 2012

Fourth Grade: Chapter 17 Math Quiz on Friday

Please study the following vocabulary terms for Friday's Quiz: 

  • Point- an exact location in space (tip of a pencil)
  • Line- straight and continues on in both directions (latitude and longitude)
  • Line Segment- a part of a line, has a stopping and starting point
  • Ray- has one endpoint and continues on in one direction.  (rays of the sun)
  • Angle- two rays meet at one endpoint
  • Vertex- the endpoint
  • Acute angle- less than 90degrees and greater than zero degrees (ahh is it so cute)
  • Right angle- equal to 90 degrees (a square corner)
  • Obtuse angle- greater than 90 degrees and less than 180 degrees (obese angle)
  • Straight angle- equal to 180 degrees (a line)
  • Intersecting lines- lines that meet at exactly one point
  • Parallel lines- lines that will never meet
  • Perpendicular lines- lines that meet and form for right angles
  • Coordinate points- Over then up (you have to walk over to the mountain before you can walk up it)
Study guides will come home tomorrow night! 

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