Students investigate and perform reflections and symmetry. In this geometry instructional activity, students compare and contrast the relationship between reflections and symmetries.

Students act as surveyors. In this George Washington lesson, students read transcriptions from Washington's surveying journal and then try surveying skills on their own.

Third graders use pattern blocks of one shape at a time to try to create a similar shape. They compare the perimeter of the new figure with the perimeter of the original shape and look for a pattern. Students use the pattern to predict...

Middle and high schoolers identify and analyze fractals and research information using the Internet to locate information about them. They look at fractals in relation to nature and other real world situations. Pupils create several...

Pupils explore the concept of fractals. In this fractals lesson, students play the "Chaos Game" via an applet. Pupils place dots on the screen to recognize that they have created Sierpinski's Triangle.

Young scholars investigate circles and compound locus. In this geometry activity, students identify the distance from a point to a line. They use Cabri software to create lines and circles.

The task, should your class decide to take it, is to list a series of reflections that transfer a line segment from one position to another. 

Learners describe, make and compare polygons. In this creating polygons lesson, students identify properties of quadrilaterals and describe common features of two dimensional shapes.

Perform reflections and transformations by having your high schoolers create glide reflections from translated shapes. They use the TiNavigator to explore transformations.

Learners investigate surveying in this secondary mathematics instructional activity. They will explore a real world application of geometry and trigonometry as they create a plot plan using a geometry utility and calculate the area of...

Young scholars scan the classroom to find different common shapes. They listen as the teacher defines polygon and regular polygon. The teacher demonstrates regular polygons via the Internet and the "Math is Fun" web site. Students go...

Middle schoolers explore tessellations and the artwork of M.C. Escher. They view and discuss a video about M.C. Escher, create a slide template out of cardboard, and create a poster with their tessellation pattern.

Tenth graders explore congruent triangles.  In this geometry instructional activity, 10th graders investigate the conditions necessary to prove two triangles congruent.  The instructional activity combines dry erase board...

Fifth graders use formal geometric language to describe polygons (and other shapes) that will tessellate the plane and those that will not. Students make generalizations about the characteristics of a polygon (or other shape) that will...

Third graders construct tangrams. In this tangrams lesson, 3rd graders manipulate basic shapes to construct tangrams. Students explore how shapes can be combined in different ways and develop spatial sense.

Students explore the concept of logarithms.  In this logarithms lesson, students discuss the logarithm properties.  Students use linear functions as a basis to develop the logarithm properites by substituting log b and log a...

Students investigate triangles and congruences. In this geometry lesson plan, students differentiate between inductive and deductive reasoning. They differentiate between similar and congruent triangles.

Students calculate the area of a parallelogram. In this geometry lesson, students perform translation using a coordinate plane and coordinate pairs. They perform translation on other polygons.

Students calculate the area of parallelograms. In this geometry instructional activity, students identify properties of parallelograms and use to to solve problems. They create polygons using Cabri software.

Students study area and quadrilaterals. In this multiplication and area instructional activity, students use Polystrip models to change rectangles to form different parallelograms. Students find the area of the models use a Geometer...

Just what does it take to show two rhombuses are similar? The assessment task asks pupils to develop an argument to show that given quadrilaterals are rhombuses. Class members also use their knowledge of similar triangles to show two...

It's assessment time! Determine your young mathematicians' understanding of elapsed time with this brief, five-question quiz.

Students make and fly a sled kite out of plastic garbage bags, dowel rods, and more. In this kite lesson plan, students plan the kite to have symmetry and make adjustments as they test it.

Students explore tessellations as well as various types of polygon. Students examine tessellating patterns in the world around them. Students examine tessellations by creating their own tessellations and completing the included worksheet.