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About this Site

Geometry lessons, Flash mini-movies, and more built just for teachers and their students! All activities are standards-based and perfect students in the middle grades. Check out the standards covered by all the student activities at Everything Geometry.



Basics of Geometry:

  • use standard language to describe line, segment, ray, parallel and perpendicular, intersection, and transversal.

Angles:

  • identify and describe the relative size of acute, obtuse, and straight angles with respect to right angles.

Circles:

  • identify and determine relationships among the radius and diameter of a circle.
  • use the formula for finding the circumference of a circle.
  • identify and draw chords and tangents on a circle
  • identify and draw a circular sector

Classify Quadrilaterals:

  • classify and describe quadrilaterals by using their properties: perpendicular/parallel sides congruent angles/sides etc.

Classify Triangles:

  • classify and describe triangles by using their properties; e.g. angle measures, congruent angles/sides.

Area & Perimeter:

  • determine area and perimeter of rectangles.
  • demonstrate that two shapes may have the same perimeter, but different areas or may have the same area, but different perimeters.



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