Amazing Math Lessons.

Please browse our selection of mathematics lessons sorted by subject and current common core standards for improving math achievement for every student.

Traditional Pathway: Geometry

Below are a comprehensive set of lesson plans and worksheets for Geometry that correspond to the given Common Core concept and help students solve real-world problems. Lesson previews provide a quick glimpse at the provided materials.

  • Concept:

    Measurement & Dimensions
  • Common Core Standard:CCSS.Math.Content.HSG.GMD.A.1
  • Description: Give an informal argument for the formulas for the circumference of a circle, area of a circle, volume of a cylinder, pyramid, and cone. Use dissection arguments, Cavalieri's principle, and informal limit arguments.
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geometry image
  • Concept:

    Measurement & Dimensions
  • Common Core Standard:CCSS.Math.Content.HSG.GMD.A.2
  • Description: Give an informal argument using Cavalieri's principle for the formulas for the volume of a sphere and other solid figures.
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geometry image
  • Concept:

    Measurement & Dimensions
  • Common Core Standard:CCSS.Math.Content.HSG.GMD.A.3
  • Description: Use volume formulas for cylinders, pyramids, cones, and spheres to solve problems.
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geometry image
  • Concept:

    Measurement & Dimensions
  • Common Core Standard:CCSS.Math.Content.HSG.GMD.B.4
  • Description: Identify the shapes of two-dimensional cross-sections of three-dimensional objects, and identify three-dimensional objects generated by rotations of two-dimensional objects.
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geometry image
  • Concept:

    Congruence
  • Common Core Standard:CCSS.Math.Content.HSG.CO.A.5
  • Description: Know that the effect of a scale factor k greater than zero on length, area, and volume is to multiply each by k, k2, and k3, respectively; determine length, area, and volume measures using scale factors.
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geometry image
  • Concept:

    Congruence
  • Common Core Standard:CCSS.Math.Content.HSG.CO.A.6
  • Description: Verify experimentally that in a triangle, angles opposite longer sides are larger, sides are larger, sides opposite larger angles are longer, and the sum of any two side lengths is greater than the remaining side length; apply these relationships to solve real-world and mathematical problems.
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geometry image

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