Doodles Do Algebra – Lesson 12


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


unknowns-and-the-29-articles-of-algebraTeacher’s Notes:

Today’s lesson is really self-explanatory. Your child is learning and then practicing how to translate the concept of “twice” from an algebraic standpoint. The idea is that “twice x+1” is the same as “twice x” plus “twice 1”, which works out to 2x+2.



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



  1. 3x+3
  2. 4x+4
  3. 5x+5
  4. 6x+3
  5. 8x+4
  6. 10x+5
  7. 3x+3

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