I have a page on my site compiling lots of classic active learning classroom strategies/activities, and also links to other in-class activity resources: http://melissajacquart.com/teaching/resources-for-instructors/philosophy-active-learning-activities/

I wrote an open access logic textbook, for all x, which has been adapted several times.

Less well known— an introductory bit on scientific inference, covering the difference between deduction and ampliative inference, the probem of induction, and some other topics. Also open access. notes on inference

Corrected versions of my Introduction to Formal Logic and Introduction to Gödel’s Theorems, which were both originally published by CUP, are freely downloadable at https://logicmatters.net.

You’ll also find there two more books I put together during lockdown, partly as occupational therapy. There’s Gödel Without (Too Many) Tears (which is much shorter and a bit easier than IGT). And Beginning Mathematical Logic (which is not another textbook, but a 180pp Study Guide to the very large literature on core math logic topics and a bit more — which seems to be needed, as the PDF is downloaded 2K times a month.)

There’s also a fifth book, work-in-progress on category theory. There are also many other logic-related pages on the Logic Matters site, and resources like extensive worked answers to exercises for IFL.

Oh, and there is also a substantial section LaTeX (not just) for Logicians with links to a lot of resources.

Although I am not a professional philosopher, I did teach in a Philosophy Dept. for over 15 years, providing a philosophical introduction to concepts and practices in major religious worldviews. I provided the students with what I termed study guides for Judaism, Christianity, Islam, Daoism, Confucianism, and Hinduism (I used some material from others for Buddhism, so I did not provide a study guide for that religious and philosophical worldview). I considered these introductory in nature and none of them did justice to the plurality and differences within the respective traditions. These are found on my Academia page under “teaching documents,” some with appended bibliographies (other bibliographies are distinct from the guides): https://independent.academia.edu/PatrickSODonnell/Teaching-Documents

It hasn’t been updated in a while, but the bottom half of my teaching page has a cluster of resources for undergraduate students about academics in general, argumentative reasoning, and writing a philosophy paper: https://trevorhedberg.com/teaching.html

BLOGIC is an interactive online textbook covering the standard syllabus in logic taught by most American philosophy departments. Topics include:

• Symbolizing arguments
• Truth tables
• Natural deduction for propositional logic
• Models for predicate logic
• Natural deduction for predicate logic

In addition to these standard topics, the textbook also includes:

• The logic of Boolean searching
• An introduction to logic circuits, with interactive working models
• An introduction to computability, with a working, programmable Turing Machine
• An introduction to modal logic, with possible-worlds diagrams

I retired from teaching philosophy in 2003. But as I taught and re-taught my courses I put my syllabi and handouts online and made them open access. I hope they’re useful to others.