Wild Wonder Foundation
The Wild Wonder Foundation is dedicated to encouraging nature connection and conservation through attention, curiosity, art, science, and community.
Their new website has a great selection of free resources, including links to great how-to videos, free books full of nature journaling curriculum, and low-cost community events.
One resource I use all the time is the “Quick-Start Guide” which is a free printable download (although donations are encouraged to help support the work!)