In this video Paul Andersen explains how linear momentum is conserved in all collisions. In completely elastic collisions the kinetic energy of the objects is also maintained. Several examples and demonstrations are included.

In this video Paul Andersen shows conceptual thinking in a mini-lesson on causal patterns. TERMS Patterns - regularity in the world Cause - a thing that gives rise to an event Effect - an event Relationships - interconnection between...

In this video Paul Andersen explains how you can have your students plan and carry out their own investigations.

Paul Andersen shows you how to use Screenflow, Keynote, and Omnidazzle to make an educational screencast.

Mr. Andersen demonstrates the azide-winkler method of dissolved oxygen analysis.

In this video Paul Andersen explains how disturbances to a reversible reaction at equilibrium affect the equilibrium constant and the reaction quotient. For example if the concentration is changed the reaction will move to reestablish...

In this video Paul Andersen shows conceptual thinking in a mini-lesson on similarities and differences. TERMS: Patterns - regularity in the world Similarities - alike Difference - not alike Sort - arrange systematically in groups...

In this video Paul Andersen explains how linear motion of an object can be measured using the center of mass. Internal forces within the object can be ignored since they exist in action reaction pairs. A simple way to determine the...

Student and Teacher Opinions on Educational Technology Wanted

In the first physical science video for the Next Generation Science Standards Paul Andersen explains the structure and properties of matter. He starts by explaining how all matter is made of about 100 smaller particles called matter. He...

In this video Paul Andersen explains the importance of DNA is organisms. DNA contains the blueprint for each organisms. The DNA codes for the mRNA which creates proteins. The DNA also is the unit of inheritance which is passed from...

In this video Paul Andersen explains how you can drive non spontaneous processes by adding external energy (like electricity or light) or by coupling it to a spontaneous process (like the conversion of ATP to ADP)

In this video Paul Andersen explains how the kinetic energy of an object if due to the motion of an object. Objects can have kinetic energy but they cannot have potential energy unless they are part of a system. He then explains how to...

Paul Andersen reviews the major concepts within the fourth unit of the new AP Biology framework. He begins by differentiating between negative and positive feedback loops. He explains how a stable internal environment is maintained...

What's the Best Way to Teach Science?

In this video Paul Andersen explains how scientific phenomenon and sensemaking can be used in the science classroom to engage students and drive inquiry.

Paul Andersen explains how the long tail of the internet is opening up new possibilities for educational videos

In this video Paul Andersen explains the wave-particle duality discovered by scientists. In certain situations particles (like electrons and photons) display wave like properties. This phenomenon can best be explored using the double...

In this video Paul Andersen defines biodiversity and explains the impacts humans are having on the planet's biodiversity. Humans are impacting the variety of life on our planet through habitat destruction, invasive species, pollution,...

In this video Paul Andersen describes some of the properties of waves. He starts be identifying particles and waves as the only phenomenon that can transfer energy from place to place. He identifies the defining characteristics of waves;...

This video is the first of a five part series on scientific inquiry. Supporting material can be found below.

Song written by Herman Jolly Vocals: Herman Jolly and Megan Pickerel Programming, Synths, Production and Mixing by Tony Lash Kids: Ruby, Emmet, Lucas, and Mayfiel

In this video Paul Andersen defines natural selection as differential reproductive success. He then explains how natural selection shapes organisms on our planet through variation and selection. A K-12 teaching progression is also included.

Paul shows how he makes screencasts by making a screencast about making screencasts. Hardware and Software