Education Technology
Geometry: Quadrilaterals and Polygons Classroom ActivitiesDownload

Voronoi Diagrams

In this activity, students will create Voronoi Diagrams and apply them to real world scenarios. 
  • ax-icon-color-device
    TI-Nspire™ CX/CX II
  • ax-icon-color-device
    TI-Nspire™ CX CAS/CX II CAS
Download120
Geo_Midpoint_Quadrilaterals_sm

Creating a Midpoint Quad

Explore special outer and inner quadrilaterals formed by the connected midpoints and investigate the area relationships.
  • ax-icon-color-device
    TI-Nspire™ CX/CX II
  • ax-icon-color-device
    TI-Nspire™ CX CAS/CX II CAS
  • TI-Nspire™ Navigator™
Download6,443
Creating_a_Parallelogram

Creating a Parallelogram

Explore the differences of constructed verses drawn parallelograms by dragging vertices and investigate properties.
  • ax-icon-color-device
    TI-Nspire™ CX/CX II
  • ax-icon-color-device
    TI-Nspire™ CX CAS/CX II CAS
  • TI-Nspire™ Navigator™
Download6,645
hero

Exploring Diagonals of Quadrilaterals

Investigate characteristics of diagonals of various quadrilaterals.
  • ax-icon-color-device
    TI-Nspire™ CX/CX II
  • ax-icon-color-device
    TI-Nspire™ CX CAS/CX II CAS
  • TI-Nspire™ Apps for iPad®
  • TI-Nspire™ Navigator™
Download6,904
image

Interior Angles of Regular Polygons

Explore the interior angles of regular polygons by dividing the polygons into triangles.
  • ax-icon-color-device
    TI-Nspire™ CX/CX II
  • ax-icon-color-device
    TI-Nspire™ CX CAS/CX II CAS
  • TI-Nspire™ Apps for iPad®
  • TI-Nspire™ Navigator™
  • TI-Nspire™
  • TI-Nspire™ CAS
Download7,078
hero

Properties of Special Quadrilaterals

Explore properties of some special quadrilaterals using segments to build quadrilaterals and explore their angles.
  • ax-icon-color-device
    TI-Nspire™ CX/CX II
  • ax-icon-color-device
    TI-Nspire™ CX CAS/CX II CAS
  • TI-Nspire™ Apps for iPad®
  • TI-Nspire™ Navigator™
Download6,812
12096_Step_1

Rhombi, Kites, and Trapezoids

Students discover properties of the diagonals of rhombi and kites, and the properties of angles in rhombi, kites, and trapezoids.
  • ax-icon-color-device
    TI-Nspire™ CX/CX II
  • ax-icon-color-device
    TI-Nspire™ CX CAS/CX II CAS
  • TI-Nspire™ Navigator™
  • TI-Nspire™
  • TI-Nspire™ CAS
Download4,908
hero

Sum of Exterior Angles of Polygons

Investigate interior angles of polygons and the sum of their measures.
  • ax-icon-color-device
    TI-Nspire™ CX/CX II
  • ax-icon-color-device
    TI-Nspire™ CX CAS/CX II CAS
  • TI-Nspire™ Apps for iPad®
  • TI-Nspire™ Navigator™
Download6,856
17247

Slices

This lesson involves exploring the shapes formed from 3D figures cut by a horizontal and/or a vertical plane. • Compatible TI Technologies: TI-Nspire™ CX Handhelds, TI-Nspire™ Apps for iPad®, TI-Nspire™ Software
  • ax-icon-color-device
    TI-Nspire™ CX/CX II
  • ax-icon-color-device
    TI-Nspire™ CX CAS/CX II CAS
  • TI-Nspire™ Apps for iPad®
  • TI-Nspire™ Navigator™
Download2,743