I have personally applied this flip chart with 4th and 5th grade students (alongside a hand drawn reference poster with the same terminology and equation examples - Page 6 specifically). As a fourth grade teacher I expected students strong in Algebra to communicate their equations vertically. As a fifth grade teacher I expected most students to communicate their equations vertically.
A General Lesson Guide Possiblity:
Page 1 - Learning Goal
Page 2 - 4 - Definitions of Area and Perimeter (Instruction)
Page 5 - Introduction to Formulas (Instruction)
Page 6 - Provided Example (Possible example for wall anchor chart)
Day 7 and 8 - Collaborate with students, independent practice or student collaborative practice uncovering Area and Perimeter using formulas
Day 2 (Increased Rigor)
Page 9 - Learning Goal Revisited
Page 10 - Review of Formulas (using letter variables rather than terms)
Page 11 - Story Problem Situations: Collaborate with students, independent practice or student collaborative practice uncovering Area and Perimeter using formulas
Page 12 and 13 - Problem Solvers
Page 1 and 14 includes the art I created to explain the difference between Area and Perimeter. If you like, print and laminate.
Please feel free redesign for yourself. Really.