A variety of physical models (e.g., circular and linear) should be used to represent the temperature determined by a real thermometer.
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Similar standards in other grades
Measure the weight of objects, using a balance or pan scale with various nonstandard units (e.g., paper clips, bean bags, cubes).
Premature use of instruments or formulas leaves children without the understanding necessary for solving measurement problems.
Measurement involves comparing an attribute of an object to the same attribute of the unit of measurement (e.g., the length of a cube measures the length of a book; the weight of the cube measures the weight of the book; the volume of the cube measures the volume of a book).
Students develop conservation of measurement when they understand that the attributes do not change when the object is manipulated (e.g., a piece of string that is coiled maintains its length as it is straightened; the volume of water does not change when poured from a pitcher into a fish tank.)
Measure the length of objects, using various nonstandard units (e.g., connecting cubes, paper clips, erasers).