## Reflection: Lesson Planning Filling in the Middle - Section 2: Teaching the Lesson

Area and perimeter are not in the second grade Common Core State Standards but I have chosen to teach them at this point because they are district standards that I need to cover. I have tried to tie them into the Common Core by turning to the third grade standards in which they are included. I have also revisited the use of repeated addition and arrays to find the total of a number of rows by a number of columns.

At some point you may move beyond the Common Core State Standards in teaching a lesson. This is not a bad thing, but a way to move students forward in their understanding. When you move beyond the Standards, keep in mind what students are responsible for. This is what you will need to assess (i.e. the things that are Common Core standards based). Reinforce the things in the standards, but introduce the ideas that will come next if you feel that your students are ready, or if local requirements require that you teach things beyond the Common Core Standards for your grade level.

Not in the Common Core?
Lesson Planning: Not in the Common Core?

# Filling in the Middle

Unit 13: Area, Perimeter and More Measurement
Lesson 4 of 6

## Big Idea: Perimeter is the outside, and area is the inside of a figure. Students can use both concepts to work with geometric shapes.

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60 minutes

### Beth McKenna

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