In this video Paul Andersen explains hot the force-time graph can be used to determine the impulse of an object. Since the impulse and the change in momentum are equivalent the graph can also be used to determine the change in momentum...

In this video Paul Andersen explains how information is processed in in animals. He starts by describing the different forms of information and how they are received by receptors. He explains how information is received by the brain and...

Paul Andersen explains how to formulate questions to guide discussions and investigations. He starts by describing the proper type of questions that should be asked in an AP Biology classroom. He gives four examples of questions that...

In this video Paul Andersen explains how mass can be converted to energy and energy can be converted to mass. The equation E=mc2 can be used to determine the amount of energy released from nuclear processes.

In this video Paul Andersen explains how scalar fields can be used to show the distribution of scalar quantities. The most important scalar fields in AP Physics 2 deal with electric potential. Scalar addition can be used to combine...

In this video Paul Andersen explains how the Earth's climate will natural change due to interactions between the Sun and Earth, volcanism, and plate tectonics. Species may go extinct leading to adaptive radiation or may move to a...

In this video Paul Andersen explains how the CRISPR/Cas immune system was identified in bacteria and how the CRISPR/Cas9 system was developed to edit genomes.

In this video Paul Andersen shows conceptual thinking in a mini-lesson on complex structures. TERMS Complex structures - structures that consist of many different and connected parts System - a set of components (e.g. things) working...

Paul Andersen explains how investigations are used by scientists to answer questions and by engineers to test designs. He delineates be investigative and observational science. He demonstrates the formation of a good question the design...

Paul Andersen explains how variation is created within a cell. He starts by showing how molecular variation can increase fitness at the local level. He explains how an additional chlorophyll molecule allows plants to absorb more light...

A mini-lesson on patterns at varying scale.

In this video Paul Andersen shows conceptual thinking in a mini-lesson on scale and perspective. TERMS Phenomena - observable events in the natural world (require explanations) Time - an irreversible series of events Space - the...

In this video Paul Andersen explains how a system can be viewed as an object and an object can be viewed as a system.

In this video Paul Andersen explains how inertial mass is defined and measured. When a force is applied to an object or a system it will accelerate. Using Newton's Second Law of Motion (F=ma) you can calculate the inertial mass.

In this video Paul Andersen attempts to explain the age old questions - What is Energy? Even though it comes in many forms one of the defining characteristics of energy is that it is conserved over time. He then explains that all energy...

In this video Paul Andersen shows conceptual thinking in a mini-lesson on matter and matter transport. TERMS Matter - physical substances System - a set of components (e.g. things) working together Transport - to move or transfer from...

In this video Paul Andersen explains how contour lines show areas of equal elevation or equal gravitational potential. Contour lines are used as an analogy for lines of equipotential in electric fields.

In this video Paul Andersen explains how a spontaneous process may take either the thermodynamically controlled or the kinetic controlled pathway. If the activation energy determines the path taken then the process is under kinetic...

in this video Paul Andersen shows conceptual thinking in a mini-lesson on INSERTTITLEHERE. TERMS Complex structures - structures that consist of many different and connected parts Microscopic structures - structures that are so small it...

In this video Paul Andersen shows conceptual thinking in a mini-lesson on scale mechanisms within complex systems. TERMS: Cause and effect relationships - one event that gives rise to another event Complex systems - a system composed of...

Paul Andersen explains the final 6 of 13 AP Biology Labs. The following topics are included: Transformation, Restriction Analysis of DNA, Energy Dynamics, Transpiration, Animal Behavior, and Enzyme Activity.

In this video Paul Andersen explains how object interactions can add or remove mass or energy from a system.

Paul Andersen reviews the major concepts within the second unit of the new AP Biology framework. He starts by describing how life is organized into three domains. He explains how the history of life on the planet is characterized by mass...

In this video Paul Andersen shows conceptual thinking in a mini-lesson on thinking in scale. TERMS Phenomena - observable events in the natural world (require explanations) Time - an irreversible series of events Space - the dimensions...