I have been coaching Math Team for 8 years and ARML for 1 year. Below are various lessons and practiced sets I have written or compiled.
Absolute Value Functions
AM, GM, Sequences, and Series Introduction
Counting Lesson & Practice
Logarithmic Manipulation
Sequences and Series Introduction
Some Algebraic Identities
Some Number Theory Facts
2024-25 Rockdale Magnet Math Lessons (97 pages)
Interesting Pell Number Proof