Summer Course: ''The Maths Experience''.
Here is the Maths Experience handbook used for the 1 week long CTYI course in 2020.
Here is the outline for this course.
Going forward, here are some good resources:
Online Spring Weekend Course: ''Maths with Applications''
I designed and taught a 5 weekend course on ''Maths with Applications'' as part of the Online Spring 2021 CTYI experience. The goal of this course was to outline 5 different topics in mathematical applications: probability, computability theory, astrometry, machine learning, and game theory.
One website I found especially useful for online teaching and learning was machinelearningforkids.co.uk.