Curated OER
Cross Sections
Young visual learners explore different cross sections of 3-dimensional objects. First, cross sections of cubes are explored by using an interactive flash activity. This is then extended by looking at cross sections of spheres,...
Mathematics Vision Project
Module 5: Modeling with Geometry
Solids come in many shapes and sizes. Using geometry, scholars create two-dimensional cross-sections of various three-dimensional objects. They develop the lesson further by finding the volume of solids. The module then shifts to finding...
Curated OER
Solids of Revolution - Disks
Young mathematicians solve the volume using the disk method in this calculus lesson. They revolve a graph around the x-axis and calculate the volume. They use the TI to see the revolving around the x-axis and create a virtual cross...
Curated OER
Visualizing Solids of Revolution - Washers
Students solve the area of a cross section. In this calculus lesson plan, students solve areas rotated and bounded by two functions. They solve using the washer method.
Curated OER
Chopping Cubes
Middle schoolers work in small groups to make various geometric solids with Play-Doh. They use fishing line to make cuts and observe the shapes of the cross-sections. Pupils complete an assessment in which they answer questions such as:...
Curated OER
Poly-Mania
This hands-on lesson plan takes young geometers on a tour of 2D polygons and 3D polyhedrons. After exploring different web resources and discussing geometric shapes, small groups construct models of polyhedrons using bendable straws....
Curated OER
Filter Feeding in Reef Sponges
Students investigate the role of sponges in our oceans. In this biology lesson, students create a diagram visualizing how sponges bring food into their bodies through a filtering process. Students discuss the connections between...
Curated OER
Under Our Feet
Students investigate the forest ecosystem to learn of the living and non-living elements of the soil. In this ecosystem lesson, students examine soil for twigs, moss, fungi, leaves, roots and other matter. Students complete a...
Curated OER
Filter-Feeding in Reef Sponges
Students make observations and describe the filter-feeding in sponges as it relates to the ecological role of sponges on coral reefs. In this filter-feeding in reef sponges lesson, students are introduced to the feeding methods of...