Unit 1 · Lesson 1• 20 min
The 4 Mechanical Parts
Today's lesson
The4MechanicalParts
Every bill
Quick Check
1. Which is NOT one of the 4 mechanical parts of a bill?
2. What should happen after guided practice?
Answer all 2 questions to check.
A challenge round will appear here shortly.
Takeaway
Bills don't fail because the idea is bad — they fail because one of the 4…