2.GM.2.3 Explore how varying shapes and styles of containers can have the same capacity.
In a Nutshell
In previous grades, students began to explore capacity, comparing the number of objects needed to fill two different containers and comparing and sorting containers that hold more, less, or the same amount. In second grade, students continue to explore capacity, discovering how containers of different shapes and sizes can have the same capacity. In future grades, students will begin to measure volume.
Student Actions
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Teacher Actions
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Develop the ability to make conjectures, model and generalize about capacity by filling containers (with substances such as rice or beans) and pouring the contents into other containers of varying shapes and sizes.
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Communicate mathematically about exploration of capacity.
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Establish clear goals for exploring and learning about capacity.
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Implement tasks that promote reasoning while exploring capacity. For example, teacher asks students to compare how many Pokeballs will fit in two containers of different shape and style.
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Facilitate meaningful mathematical discourse as students discuss their thinking about capacity involving containers of varying shapes and styles.
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Key Understandings
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Misconceptions
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- Containers of varying sizes and styles may or may not hold the same amount.
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OKMath Framework Introduction
2nd Grade Introduction
2nd Grade Math Standards
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