## Reflection: Standards Alignment Abracadabra - Section 1: Abra...

The progression of skills breaks down component skills and understandings that are requisites for learning the standard. To provide an effective intervention, identify what skills students need to develop before additional work with the standard.

Progression
Standards Alignment: Progression

Unit 1: Numbers & Operation in Base Ten Grade 2
Lesson 7 of 10

## Big Idea: Students will be able to explain using concrete objects, pictures and words (oral or written) why addition or subtraction strategies work.

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Standards:
Subject(s):
Math, Number Sense and Operations, reasoning, adding, subtracting, discussin, skill
55 minutes

### Carol Redfield

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