Curated OER
Easy and Artistic Printmaking Using Mixed Media Materials
Students explore printmaking which began with the ancient Chinese who carved seals from stone, inked them and used the seals as identification symbols. They produce a print in this lesson.
Cut the Knot
Cut the Knot!: Mathematics: The Science of Patterns
A book excerpt, this page discusses John Venn's "simple, geometric method for checking the validity of syllogisms," with diagrams, examples, and related links.