Build on your learners' previous knowledge of geometric shapes and symmetrical figures. Then set them out to take photos of geometric shapes on campus. They assess whether the photos contain symmetry or not. 

Comparing shapes can be integral to shape recognition- use this multiple-choice worksheet to help scholars know which is which...and which is not! In 4 questions, students observe multiple figures and identify the quadrilateral,...

In this parallelogram worksheet, students examine the lengths of the sides of a quadrilateral.  They identify parallelograms.  This one-page worksheet contains 13 multiple-choice problems.  This online worksheet provides...

In this geometry worksheet, students set up and solve formulas to find missing angles and segments. When solving for x, the equations are just linear. There are 15 questions with multiple parts.

In this trapezoids worksheet, student solve 46 fill in the blank problems. Learners find unknown side lengths and angle measures of an isosceles trapezoid and a rhombus.

Students draw perpendicular bisectors.  For this perpendicular bisectors lesson, students identify the perpendicular bisector in a polygon.  They use web tools to create and measure perpendicular bisectors.  Students...

Students identify polygons.  In this polygon people lesson, students draw required shapes and construct a polygon person.  They identify each shape and its characteristics.  The lesson may be extended by allowing students...

Students classify quadrilaterals. In this quadrilateral lesson, students identify the characteristics of quadrilaterals. They write their findings in a journal. Students use geoboards to create quadrilaterals from given descriptions.

Students classify angles. In this angles lesson, students explore the characteristics of angles, triangles, quadrilaterals and circles. They identify polygons and sing a classifying angles song. Students participate in a manipulative...

In this quadrilaterals worksheet, 10th graders solve and complete 34 various types of problems. First, they fill-in the family tree with the names of the shapes of quadrilaterals shown. Then, students list the quadrilaterals that have...

In this quadrilaterals activity, 10th graders solve and complete 22 various types of problems. First, they state the specific name for each shape illustrated. Then, students use the properties of a rhombus, rectangle, or square to solve...

For this three- and two- dimensional geometry worksheet, 7th graders solve 12 various problems related to geometric shapes and measurement. They first use paper and a pencil to sketch the front, side, back, top and bottom views of each...

Learners compare design elements in neoclassical and modern architecture. They review knowledge of triangles and quadrilaterals and design a geometric pattern using Pei's polygons They create a city plan using a variety of lines and...

In this quadrilaterals worksheet, students calculate the measure of angles in five parallelograms, name a quadrilateral, and find values of given variables in three diagrams.  The solutions are provided.

Students define the importance of the properties of quadrilaterals. In this quadrilaterals lesson, students identify the general properties of and compare and contrast the properties of convex and concave quadrilaterals. Students also...

Seventh graders study geometric shapes around the classroom. In this geometry lesson plan, 7th graders discuss their answers in groups to the Anticipation/Reaction guide handout. Students complete the reaction side of the guide and...

Learners explore the concept of quadrilaterals. In this quadrilaterals instructional activity, students use the slope formula, midpoint formula, and distance formula to justify that a given quadrilateral is a parallelogram.

Second graders explore triangles and quadrilaterals. They rotate to various centers in the room to identify and examine triangles and quadrilaterals. After presenting a picture to the class, 2nd graders locate right angles, triangles...

Students analyze symmetries of quadrilateral tilings and discover how various types of symmetries, used alone or in combination, can generate the same pattern in more than one way.

In this quadrilaterals and other polygons activity, students name various polygons and then decide if each polygon is a quadrilateral. Students also decide is certain polygons regular or irregular.

In this activity, students construct kites and investigate their properties. They also relate the properties to squares and rhombi.

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...

An interactive site that instructs and demonstrates how to find the fourth angle of a quadrilateral. This site also has many links to other interactive lessons.