Alabama Learning Exchange
Alex: A What? A What? A Quadrilateral
For this lesson, students will identify the characteristics of a quadrilateral. Students will have a chance categorize quadrilaterals into subgroups such as squares, rhombuses, rectangles, and nonregular quadrilaterals. This lesson using...
Alabama Learning Exchange
Alex: Characteristics of Quadrilaterals
Students will begin unit on quadrilaterals with basic overview of characteristics of parallelograms, rectangles, squares, rhombi, and isosceles and non-isosceles trapezoids. After the word wall is made, the teacher can use interactive...
Alabama Learning Exchange
Alex: What Do We Have in Common?
This inquiry instructional activity explores the definitions of quadrilaterals and the properties of the diagonals of quadrilaterals to classify quadrilaterals. Students will work cooperatively to justify conclusions. This lesson plan...
National Council of Teachers of Mathematics
Nctm: Illuminations: Area of Rectangles
This applet allows for the exploration of the area of rectangles.
Math Open Reference
Math Open Reference: Rhombus
A complete reference guide to the rhombus. It provides definitions and an interactive activity that enhances further explanation. Includes links to related topics.
Math Open Reference
Math Open Reference: Square
A complete reference guide to the square. It provides definitions, attributes, and interactive activities that enhance further explanation. Includes links to related topics.
Shodor Education Foundation
Shodor Interactivate: Floor Tiles
Build a "floor tile" by dragging the corners of a quadrilateral. Learn about tessellation of quadrilateral figures when the shape you built is tiled over an area.
Geometry Help
Geometry Help: Rhombus
Explains the basic concept of a rhombus with step-by-step instructions and methods for solving specific problems on your own relating to this topic.
Geometry Help
Geometry Help: Parallelograms
Explains the basic concept of parallelograms with step-by-step instructions and methods for solving specific problems on your own relating to this topic.
Geometry Help
Geometry Help: Quadrangles
Explains the basic concept of quadrangles (quadrilaterals} with step-by-step instructions and methods for solving specific problems on your own relating to this topic.
Geometry Help
Geometry Help: Trapezoids
Explains the basic concept of trapezoids with step-by-step instructions and methods for solving specific problems on your own relating to this topic.
Geometry Help
Geometry Help: Squares
Explains the basic concept of a square with step-by-step instructions and methods for solving specific problems on your own relating to this topic.
Math Open Reference
Math Open Reference: Rectangle
Learn about rectangles with this helpful reference tool. Provides a detailed definition, examples, and interactive activities that enhance further explanation. Includes links to related topics.
Math Open Reference
Math Open Reference: Trapezoid
Learn about trapezoids with this helpful reference tool. Provides a detailed definition, examples, and interactive activities that enhance further explanation. Includes links to related topics.
Math Open Reference
Math Open Reference: Area of a Trapezoid
Learn about the area of a trapezoid with this helpful reference tool. Provides a detailed definition, examples, and interactive activities that enhance further explanation. Includes links to related topics.
Math Open Reference
Math Open Reference: Interior Angles of a Parallelogram
Learn about the interior angles of a parallelogram with this helpful reference tool. Provides a detailed definition, examples, and an interactive activity that enhances further explanation. Includes links to related topics.
Better Lesson
Better Lesson: Remarkable Rectangles
Rectangle is SO MUCH like triangle! Those darned angles--they'll get beginning learners! This is a fun way to practice rectangle!
Cuemath
Cuemath: Geometric Shapes
In this mini-instructional activity, you will learn about the definition of geometric shapes and view many examples. You can check out the interactive simulations to know more about the instructional activity and try your hand at solving...
OER Commons
Oer Commons: Gallery Problems Exercise
Students who have a clear understanding of the previous lessons can work on gallery problems of their choosing. This can be used as a good review or assessment.
OER Commons
Oer Commons: Pre Assessment
Students solve for missing angle measures by applying what they have learned about types of angles and the angle measures of polygons. Students do a pre-assessment at the end of the lesson.
OER Commons
Oer Commons: Diagonals of a Rhombus
In this lesson, students learn how the diagonals of a rhombus are related. They use interactive sketches to learn about the properties of the angles and diagonals of squares, rectangles, rhombuses, parallelograms, and other...
OER Commons
Oer Commons: Exploring Polygons
In this lesson, students explore different polygons by drawing them, measuring angles, and manipulating interactive sketches to find the angle sum for any polygon. Students also explore the angle measures in regular polygons. Included...
OER Commons
Oer Commons: Exploring the Properties of a Triangle
In this instructional activity, young scholars explore properties of triangles. They fold paper to make a triangle and measure its angles. Students also draw triangles with given conditions. Included are examples, discussion questions,...