In this video, a philosophy student discusses one of the most basic tools in the philosophers' tool kit: the distinction between necessary and sufficient conditions. [3:14]

The concept of justification is fundamental to good, careful thinking. But what does it mean for a belief or action to be justified? In this video, Kelley sheds some light on how to assess whether a belief and action is justified. [3:11]

In this video, Geoff Pynn explores how deductive arguments give us reason to believe their conclusions. Good deductive arguments guarantee their conclusions, and so must be valid and have true premises. [5:40]

What sort of things do we value and why? In this video Kelley distinguishes two different kinds of value: intrinsic and instrumental. Their distinctions are illuminated through the use of plenty of examples.

Geoff Pynn tells you what critical thinking is, what an argument is, and what the difference between a deductive and an ampliative argument is. [9:49]

Donkey Hodie and her pal, Purple Panda, had fun plans for their time at Camp Buddy Buddy. Then the wind came and interrupted their plans! The pals decide they can change the plan. [2:50] Includes a link to a change of plan activity.

We humans are a chatty bunch--we talk A LOT. But each claim we make can be sorted neatly into one of two categories: it either describes something or it evaluates something (philosophers call these descriptive and normative claims...

In this video, Kelley builds on the understanding of necessary and sufficient conditions laid out in her previous video on the topic. In addition to providing further illustrative examples, Kelley addresses a new complexity: that our...

In this video [9:55] watch one way to approach a question that asks you to identify a sufficient assumption on the logical reasoning section of the LSAT.

This lesson will explain qualitative research and define the strategy necessary to conduct this type of research. It is 3 of 5 in the series titled "Qualitative Research."

This lesson will explore the importance of vision and visual culture as a way of understanding the importance of studying art history. It is 2 of 3 in the series titled "The Importance of Vision and Visual Culture."