PBS
Pbs Mathline Lesson: Geometry, It's a Perfect Fit [Pdf]
This two-part geometry lesson plan has students identify, describe, and classify two-dimensional shapes. Students engage in hands-on activities including identifying shapes in the classroom, creating patterns with shapes, identifying...
University of Oxford (UK)
Oxford University Museum of Modern History: Minerals
Minerals are everywhere. Different properties of minerals make them useful for different reasons. Have a go matching properties to minerals and objects, match minerals to objects, or just take it easy and refresh your memory of the...