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A. Numbers
By the end of 2nd grade, students should know that:
- Numbers can be used to count things, place them in order, or name them.
- Sometimes in sharing or measuring there is a need to use numbers between whole numbers.
- It is possible (and often useful) to estimate quantities without knowing them exactly.
- Simple graphs can help to tell about observations.
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B. Symbolic Relationships
By the end of 2nd grade, students should know that:
- Similar patterns may show up in many places in nature and in the things people make.
- Sometimes changing one thing causes changes in something else.
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C. Shapes
By the end of 2nd grade, students should know that:
- Shapes such as circles, squares, and triangles can be used to describe many things that can be seen.
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D. Uncertainty
By the end of 2nd grade, students should know that:
- Some things are more likely to happen that others.
- Often a person can find out about a group of things by studying just a few of them.
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E. Reasoning
By the end of 2nd grade, students should know that:
- People are more likely to believe your ideas if you can give good reasons for them.
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