How do we explain the do you understand section? We have set it old school by drawing and the formula. We don't know what the 2n+2 what each number or n stands for?

How Can You Use Objects to Solve a Simpler Problem? DAY Analyze You can break apart a problem into Paul has 27 cubes that are glued together to form a simpler ones in order to larger cube. He painted all 6 faces of the larger cube. find a solution. How many of the 27 cubes have paint on 1 face? How many have paint on 2 faces? sides cubes 1 - 4 2-3 3 - 2 4 - 2 5- 1 6 1 0 B Plan C Solve How many cubes have paint on 1 face? How many cubes have paint on 2 faces? The center cube on each of the 6 faces Only 1 cube on each of the 12 edges of of the larger cube has paint on 1 face. the larger cube has paint on 2 faces. messy Wide Six of these cubes have paint on 1 face. Twelve of these cubes have paint on 2 faces. Do You Understand? Convince Me! Wooden posts are used to build garden plots. or If the garden plots are built as shown, how many posts are ontod s needed for 10 garden plots? Explain how you decided. zedup of 1 plot 2 plots 2 n + 2 = 2x10 =20+2=29 2 ( 10 ) + 2 = 20 + 2 = 22