There are many Open Educational Resources (OER) available for STEM. OER can include free, online textbooks as well as interactive lessons. Here are a few we know about:

Find STEM Alt Textbooks: research guide from the University of Kentucky library on finding OER for STEM

OpenStax: Free, openly licensed textbooks on a range of subjects including many intro level STEM topics.

Galileo Open Learning Materials

The Physics Classroom

Black STEM Coalition student organization: Check out their website for to listen to their Podcast, read their blog, find out about events on campus, and find even more resources)

Centre for Career and Professional Development (CCPD) Diversity Resources has career resources, networking tools, student organizations, and professional association advice.

Louis Stokes Midwest Center for Excellence: A Louis Stokes Alliance for Minority Participation (LSAMP) related website with many resources

How to Read a Unit Circle (2:02)

Right Triangles and Trig Functions (2:06)

Graphing Sine and Cosine (11:59)

Graphing Application: Sine and Tides (4:09)

Playlist for solving equations

Introduction to Exponents (2:55)

Exponent Rules (2:11)

Simplifying Exponents with Examples (11:47)

Exponential Growth Application (1:44)

Chemistry Application (Exponents and Logs) (3:46)

Buffer Q&A:

Why do we care about buffers?

• It will keep pH constant upon adding acid or base

What do we need in a buffer?

•  a weak acid ($HA$) and its conjugate base ($A^-$)
  • if we add a base, it will react with the acid
  • if we add an acid, it will react with the base

You might ask, “can any buffer work?”

• the desired pH is +/-1 from the buffer $pK_a$

When is a buffer no longer a buffer?

• When you use up one entire speicies

What unit should I work in when I am using buffers?

• MOLES

Things to consider when making a buffer:

• pH +/- 1 from $pK_a$
• What materials you have available (you can make a buffer multiple ways)
  • option 1: 2 solids ($[HA]$ and $[A^-]$)
  • option 2: 1 solid and 1 solution ($[HA]$ solid & $[A^-]$ solution)
  • option 3: 1 solid and 1 solution ($[HA]$ solution & $[A^-]$ solid)
• use Henderson Hasslebach Equation (in pH & pOH)

The Greek alphabet has 24 letters. Using both the lower case and upper case forms of each letters gives us 48 more variables to play with, thus, the Greek alphabet shows up a lot in chemistry and physics. Use the chart below to identify the various Greek letters.

Below is an infographic of how to problem solve. If you do not know where to start a problem, follow these steps and it should get you started.

A short video with some ideas for organizing a planner:

Organizing a Planner (2:44)