Updated slides for the Celtic Cauldron Science lesson, including a new section on "Fool's Gold" (Iron Pyrite) and its historical application for fire-starting. Corrected LaTeX notation.

Updated teacher guide for the Celtic Cauldron Science lesson, focusing on turmeric pH and copper redox reactions. Corrected LaTeX notation.

Updated student activity guide using Turmeric and Copper Plating experiments instead of red cabbage. Explores pH and redox reactions through the lens of Celtic metalworking. Corrected LaTeX notation.

A set of 4-up printable exit tickets for a quick assessment on musical ratios and the concept of 'Musica Universalis'.

A teacher guide providing a pacing plan, setup instructions, and answer keys for the Harmonic Cosmos lesson.

A student lab report for exploring the mathematical ratios of musical intervals using string measurements, including data tables and analytical questions.