Lesson #1
Front and Back
Lesson #2
Ascending & Descending order
Lesson #3
Whole & Part
Lesson #4
Low and high
Lesson #5
Longer or shorter
Lesson #6
Left and Right
Lesson #7
Wide & narrow
Lesson #8
Top & Bottom
Lesson #9
Shapes: Trapezoid, Circle, Triangle
Lesson #10
Weight
Lesson #11
Semicircle, square, pentagon
Connect towers with the same height