National Council of Teachers of Mathematics
Nctm: Illuminations: Power of a Point
Use this tool to investigate what happens when point P is moved to various points within, on, and outside the circle. Can you identify any relationships among the segments and radius?
McREL International
Mc Rel: Glue Polymer (Whelmer #15 Learning Activity)
An easy to do activity that investigates the basic principles behind chemical bonding. The activity is written in lesson plan format that meets NSES standards.
CK-12 Foundation
Ck 12: Elem Math: Visually Comparing Capacity and Volume
[Free Registration/Login may be required to access all resource tools.] Students practice visually comparing capacity using metric units.
CK-12 Foundation
Ck 12: Elem Math: Estimating Capacity Using Water Metric Units
[Free Registration/Login may be required to access all resource tools.] Students practice estimating capacity using metric units.
CK-12 Foundation
Ck 12: Elem Math: Overview of Capacity Metric Units
[Free Registration/Login may be required to access all resource tools.] Students watch a video overview about capacity using metric units.
CK-12 Foundation
Ck 12: The Mole Concept
[Free Registration/Login may be required to access all resource tools.] In the following online tutorial students will identify three methods for measuring the amount of matter in a sample. They will define the mole and its relationship...
CK-12 Foundation
Ck 12: Geometry: Vertical Angles Grade 7
[Free Registration/Login may be required to access all resource tools.] Identify adjacent and vertical angles formed by intersecting lines and then find missing angle measures.
CK-12 Foundation
Ck 12: Geometry: Vertical Angles
[Free Registration/Login may be required to access all resource tools.] Identify adjacent and vertical angles formed by intersecting lines and then find missing angle measures.