Standards with the same topic and subject but for other grades
identify and name polygons with 10 or fewer sides; and
Label attributes of a set of objects that has been sorted.
Understand that a triangle can be classified as either right, acute, or obtuse according to the measure of its largest angle.
triangles as right, acute, obtuse, equilateral, scalene, or isosceles.
The student will sort and classify objects according to one attribute.
Sort plane geometric figures into appropriate subsets (categories) based on characteristics (number of sides, vertices, angles, curved, etc.).
Objects can be sorted and classified in different ways.
To classify is to arrange or organize a set of materials according to a category or attribute (a quality or characteristic).
General similarities and differences among objects are easily observed by children entering kindergarten, who are able to focus on any one attribute. The teacher’s task is to move students toward a more sophisticated understanding of classification in which two or more attributes connect or differentiate sets, such as those found in nature (e.g., leaves having both different colors and different figures).
Sort objects into appropriate groups (categories) based on one attribute (e.g., size – large bears and small bears).