What is an annulus? Pupils first learn about how to create an annulus, then consider how to find the area of such shapes. They then complete a problem set on arc length and areas of sectors.

Circles are the foundation of many geometric concepts and extensions - a point that is thoroughly driven home in this extensive unit. Fundamental properties of circles are investigated (including sector area, angle measure, and...

Explore Apple's spaceship office building. Built in the shape of a circle, the office building offers a unique floor plan challenge. Young scholars use the dimensions of the building to estimate the square footage for each employee. 

Sstudents explore and analyze the properties of geometric areas.  In this geometry lesson, sstudents use technology to simulate spinners and dartboards in order to fing areas of circles and sectors of circles and compare and...

Students explore geography by participating in a mapping activity. In this concentric ring lesson, students utilize a poster board, string and markers to identify their current location within the entire world. Students write about their...

Students create a model of the birth of a star and demonstrate the stages of the star's lifecycle.  In this star lifecycle instructional activity, students mix flour and water in a jar to model the birth of a star, then role-play...

Clever! In order to compare indoor and outdoor dispersal rates for the movement of gases and particles through air, collaborators will participate in a classroom experiment. Set up a circular grid and set learners on lines that are...

In this differentiated lesson, students incorporate different subjects using the Ghandi and Montessori methods instead of the traditional method used in regular schools. In math they investigate shapes, colors and sizes. In writing they...

Students identify the effects of using drugs, alcohol and tobacco. They work together in groups to list the harmful effects of each substance. They share their harmful effects with the class.

Students create "catchers" that collect dirt particles from the air. They observe the particulate matter that is collected from the air and discuss the effects and causes of air pollution.

Students investigate how to see, describe and draw faint or subtle features on an object which is thought of by most people as having a smooth, featureless surface. The exercise is important to reinforce skills in making observations...

Students, after exploring and analyzing diagrammatic and taxonomic keys and their association to marine sciences, identify and classify objects and organisms based on visual attributes/characteristics. They research and create their own...

Students investigate the dirt in the air. In this air quality lesson, students use aluminum foil and petroleum jelly to discover if there is dirt in the air. Students discuss results.