Students compute the area of triangles in a computer program. In this measurement lesson plan, students complete 5 easy, 5 medium, and 5 hard problems.

Fourth graders research the Lewis and Clark expedition and the Corps of Discovery. They explore a variety of websites and complete a WebQuest, analyze maps, and answer comprehension questions. Students also write journal entries and...

How do you know you know? Prove it! The guide goes through several examples and includes a link to a video to teach learners how to work through coordinate proofs. The goal is to prove that different shapes are indeed that shape. 

Discover how to analyze architecture from a geometric standpoint. The fourth installment of an 11-part unit on architecture first provides a presentation on axis, balance, basic form, formal, pattern, proportion, symmetry, and tripartite...

Young geometers investigate two-dimensional figures using coordinate grids. They identify polygons and draw examples of their reflection, rotation, and translation on a coordinate grid. And they complete a worksheet practicing examples...

Examine the power of technology while modeling with polynomial functions. Using the website wolfram alpha, learners develop a polynomial function to model the shape of a riverbed. Ultimately, they determine the flow rate through the river.

See how art can communicate the idea of working together with your class. They will view art and describe space, color, shape, and lines in art. Then they will overlap in their art to show a sense of space. In the end, they will be able...

Middle and high school students engage in enameling and apply design elements. They study the history and tradition of Cloisonne. The history of traditional Chinese Cloisonne dates back over 700 years, with the most beautiful, artistic...

Let imaginations run wild as participants design animal pens. A performance task challenges young mathematicians to determine the perimeter or a missing side length of different animal pens. They then design pens that meet given...

Make music. Class members construct a simple record player using a paper cone and a pin. The resource provides a description of what is happening and why listeners can hear the sounds through the cone. 

Students investigate inventions and the impact they can have on people. In this technology lesson, students research Thomas Edison and discuss how the invention of the light bulb impacted others. Students sketch out an invention they...

Congruence and similarity apply to functions as well as polygons. Learners examine the effects of transformations on the shape of parabolas. They determine the transformation(s) that produce similar and congruent functions.

Here is a lab activity adequate for use with any full lesson on environmental factors that shape animal adaptations or marine animal characteristics. Pupils will discuss the role plankton plays in the environment and filter-feeding...

Looking at London's population from 1801–1961 in 20 year increments, high school mathematicians determine if the data can be modeled by a given logistic growth equation. They explain their thinking and determine the values of each...

Test your class' coordination as they model the Coriolis Effect. Forming a large circle, learners move to the right as they try to toss a ball to the person across from them. The movement of the circle represents the rotation of the...

Collaborative groups utilize their knowledge of parent functions and transformations to determine the equations associated with graphs. The graph is then related to the scenario it represents. 

Junior geographers explore the region through which the Mekong flows, its pathway, the landscape, how people depend on the Mekong, and future uncertainties. They apply the five themes of geography to examine the region. They create a...

Young learners listen to a read aloud of Gail Gibbons book, Apples and the story A Red House With No Windows and No Doors. They compare characteristics of a number of kinds of apples, graph them and create a apple print picture. Learners...

Not only is Wassily Kandinsky fun to say, his art contains tons of angles. Learners discuss Kandinsky's music-inspired abstract art and four types of angles. They search one of his paintings for obtuse, right, straight, and acute angles,...

Young geometers investigate and apply properties of quadrilaterals.  After a review and discussion of key terms, learners use a computer applet to explore four-sided figures and classify them according to their attributes. The...

Mirror, mirror on the wall, which is the fairest resource of them all? Individuals write and solve one-step equations for problems about angle measurement, including those involving mirrors. Both mathematical and real-world problems are...

Second graders read poetry and build their vocabulary through use of the puppet Geo George.

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

Second graders participate in the Author's Chair, which is placed in the front of the room. The puppet, Geo George, asks students to take out their poems, then brings them to the Author's Chair individually to share their poems with the...