Doodles Do Algebra – Lesson 25


Update: This Lesson Is Part of Book 2 of Doodles Do Algebra: “Unknowns And The 29 Articles of Algebra” available on Amazon.


Teacher’s Notes:

Today your child learns what a numerical coefficient is and how to calculate it.



Available in the book, “Unknowns And The 29 Articles of Algebra, Book 2 of Doodles Do Algebra



  1. 6a
  2. 3ax (if your child is having trouble, just ask “how many ax’es are there when you add them? One ax, two ax’es, and three ax’es”)
  3. 2ay
  4. 4bx