K-2

E3: Group objects based on observable characteristics (e.g., color, size, texture).

Curriculum Organizing Questions	How many different ways can we group these objects?
Elaboration	Students should examine and use a wide variety of objects, categorizing them according to their various observable properties.
Specific Ideas	Objects can be described in terms of the materials they are made of (clay, cloth, paper, etc.) and their physical properties (color, size, shape, weight, texture, flexibility, etc.). Benchmarks 4D1 Things can be done to materials to change some of their properties, but not all materials respond the same way to what is done to them. Benchmarks 4D2 Objects have many observable poperties, including size, weight, shape, color, temperature, and the ability to react with other substances. Those properties can be measured using tools, such as rulers, balances, and thermometers.NSES B1a Objects are made of one or more materials, such as paper, wood, and metal. Objects can be described by the properties of the materials from which they are made, and those properties can be used to separate or sort a group of objects or materials. NSES B1b
Developmental & Instructional Implications
Examples

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