1. Topic Splash Quadrilaterals
Maria Sabetta
Roger Williams University

2. Developer Page Developer Materials Student Materials Overview
Resources
Student Materials
Introduction
Internet Activities
Quadrilaterals
Conclusions/Extensions
Student Worksheet

3. Overview NCTM Standards Assessment Geometry 6-8
Analyze characteristics and properties of two- and three-dimensional geometric shapes and develop mathematical arguments about geometric relationships
Understand relationships among the angles, side lengths, perimeters, areas, and volumes of similar objects
Use visualization, spatial reasoning, and geometric modeling to solve problems
Draw geometric objects with specified properties, such as side lengths or angle measures
Assessment
Students will be assessed on their completion of their worksheet, accuracy of information about quadrilaterals, and understanding the properties of different quadrilaterals.

4. Topic Splash References
Resources
Credits
An Introduction to Quadrilaterals
Grades 6 - 8: Geometry
Floor Tiles
Topic Splash References
Social Sciences Resource Center
AT&T Education
Mountain City (TN) Elementary School
OZLINE
Charleston County (SC) School District

5. Student Materials Introduction Internet Activities
Quadrilaterals
Conclusion/Extensions
Student Worksheet

6. Introduction
This topic splash activity is designed to introduce you to quadrilaterals. You will be introduced to three different types of four-sided polygons, rectangles, parallelograms, and trapezoids. You will search the internet to complete the worksheet and answer questions based on each one of these quadrilaterals. You will then work in groups and create your own quadrilateral using the internet.

7. Internet Activities
Floor Tiles

8. Quadrilaterals Rectangle
Quadrilaterals - Square, Rectangle, Rhombus, Trapezoid, Parallelogram
Isosceles Trapezoid
Complete the Quadrilateral Worksheet. To find the properties and definition of a rectangle, rhombus, and parallelogram, visit these websites.
Before doing this, visit the Floor Tiles website.

9. Conclusion/Extensions
You will now be able to connect your knowledge of angles, lines, and congruency to many different polygons, now including quadrilaterals.
Discussion of the importance of knowing the characteristics of different types of quadrilaterals.
To learn more about properties of quadrilaterals, visit these websites:
Polygons - Quadrilaterals - First Glance
The Quadrilateral Family
Figures and polygons

10. Worksheet on Quadrilaterals
Chart
A rectangle has ___ pairs of parallel sides, ___ pairs of equal sides, and ___ right angles. Can you create a rectangle using the Floor Tiles Activity?
Using the information button, can you show that what you made is a rectangle? Show that you have the necessary characteristics of a rectangle. Show and explain your work.
A rhombus has ___ pairs of parallel sides, ___ equal sides, and ___ pairs of congruent angles. Can you create a rhombus with the Floor Tiles Activity?
Using the information button, can you show that what you made is a rhombus? Show that you have the necessary characteristics of a rhombus. Show and explain your work.
An isosceles trapezoid has ___ pairs of parallel sides, ___ equal sides, and ___ pairs of congruent angles. Can you create an isosceles trapezoid with the Floor Tiles Activity?
Using the information button, can you show that what you created is an isosceles trapezoid. Show and explain your work.