Texas Instruments
Texas Instruments: Special Midpoint Quadrilaterals
Midpoint Quadrilaterals are quadrilaterals that are formed when consecutive midpoints of a quadrilateral are connected. This activity will use Cabri Jr. to investigate what properties an exterior quadrilateral has if its midpoint...
Texas Instruments
Texas Instruments: Measuring Polygons an Introduction to Cabri Jr.
This activity is designed as an introduction to using the Carbri Jr. application on the TI-83+/84+ calculators. Students are guided through the menu system and are shown how to draw triangles, quadrilaterals and and a pentagon. Perimeter...
Texas Instruments
Texas Instruments: Classifying Quadrilaterals
Students receive two Cabri Jr. files of quadrilaterals on a coordinate plane. They use their knowledge of quadrilaterals to give each one the most precise name. They may find the length and/or slope of the sides using the measuring tools...
Primary Resources
Primary Resources: 2 D and 3 D Shapes
Here is a huge collection of teacher resources for teaching 2-D and 3-D shapes. Includes smartboard and PowerPoint presentations, as well as worksheets and helpful hints.
Beacon Learning Center
Beacon Learning Center: Quad Squad
This interactive lesson investigates quadrilaterals and provides learners with an opportunity to practice describing their attributes.
Ministry of Education and Universities of the Region of Murcia (Spain)
Ministerio De Educacion Y Ciencia: Los Cuadrilateros
In Spanish. Interactive resources and activities that could be used in the classroom either as an introduction or review to a unit dealing with area and perimeter of quadrilaterals.
![Pbs: Mathline: Tessellations Wow! [Pdf] Lesson Plan](https://static.lp.lexp.cloud/images/attachment_defaults/resource/large/FPO-knovation.png "Pbs: Mathline: Tessellations Wow! [Pdf] Lesson Plan")
PBS
Pbs: Mathline: Tessellations Wow! [Pdf]
An integrated geometry instructional activity on spatial sense in which students identify and use different shapes to create a tessellation. "Through a variety of modalities such as writing, music, art, poetry, and literature, students...
Other
Gvsu: Quadrilateral Hunt
The learning activity asks students to identify quadrilaterals by characteristics rather than appearance. Learners drag the vertices of the shape to reveal the true shape of the quadrilateral. [Requires Java.]
Other
Generalization
Learn how to construct convex polygons and the mathematical foundations of symmetry on this site.
Quia
Quia: Polyatomic Ions Quiz
This site gives you a little Quiz about how much you really know about polygons.
Texas Instruments
Texas Instruments: Investigating Properties of Trapezoids
This activity uses the graphing calculator to investigate trapezoids. Numerous supplementary materials are included. [Requires Adobe Reader.]
Texas Instruments
Texas Instruments: Constructing Quadrilaterals
In this activity, students will construct different types of quadrilaterals from the quadrilateral hierarchy. This activity asks for constructions based on a minimal definition of the quadrilateral. The activity will reinforce the...
Math Planet
Math Planet: Geometry: Properties of Parallelograms
The properties of parallelograms are explained through examples and a video lesson. [0:53]
Scholastic
Scholastic: Study Jams! Math: Geometry: Classify Quadrilaterals
After you explore the step by step lesson to classify quadrilaterals sing some karaoke and then test your knowledge.
Ministry of Education and Universities of the Region of Murcia (Spain)
Ministerio De Educacion Y Ciencia: Teselacion Del Plano
In Spanish. Gain your knowledge of tessellation with this interactive activity. Topics include identifying regular and semi-regular tessellations and figures that will tessellate. [Requires Java.]
Math Open Reference
Math Open Reference: Quadrilaterals
A complete reference guide to quadrilaterals including squares, rectangles, parallelograms, trapezoids, and rhombus. It provides definitions and interactive activities that enhance further explanation.
McGraw Hill
Glencoe Mathematics: Online Study Tools: Self Check Quiz on Quadrilaterals
The online assessment demonstrates knowledge of concepts utilized in Geometry. The multiple choice questions test students on quadrilaterals. Topics include rhombus, parallelogram, and interior angles.
McGraw Hill
Glencoe Mathematics: Online Study Tools: Classifying Quadrilaterals
This site gives a short interactive quiz which allows students to self-assess their understanding of the concept of classifying quadrilaterals.
Other
National Council of Supervisors of Mathematics:properties of Quadrilaterals
National Council of Supervisors of Mathematics: Properties of Quadrilaterals provides a teacher learning module on how to effectively teach properties of quadrilaterals and resources that would help to do this.
Other
National Council of Supervisors of Mathematics: Properties of Quadrilaterals
National Council of Supervisors of Mathematics: Properties of Quadrilaterals provides a geometric design learning module, on how to effectively teach properties of quadrilaterals which is used to develop skills in teachers to aide in...
Mangahigh
Mangahigh: Shape: The Angles Inside a Quadrilateral
Test your knowledge of the sum of angles inside a quadrilateral.
Mangahigh
Mangahigh: Shape: Recognize a Square and Rectangle
Test your knowledge of the similarities and differences between squares and rectangles.
Mangahigh
Mangahigh: Shape: Recognize Quadrilaterals
Determine quadrilaterals based on parallel sides.