#### Math - 2018-19

# 1.13 - Sort and Classify

**The
student will **

**sort and classify**concrete objects according to one or two attributes.

*Adopted: 2016*

### BIG IDEAS

- So that I can count and group my toy in different ways, using different attributes

### UNDERSTANDING THE STANDARD

- Sorting,
classifying, and ordering objects facilitates work with patterns, geometric
shapes, and data.
- The same set
of 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).
- A Venn
diagram can be a helpful tool when sorting by more than one attribute.
- One way to
explore attributes is to investigate non-examples (e.g., a triangle could be a
non-example in a sort of rectangles and circles).
- General similarities and
differences among items are easily observed by primary students, who can begin
to focus on more than one attribute at a time. During the primary grades, 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 with different colors and different
shapes).

### ESSENTIALS

**The student will use problem solving, mathematical communication,
mathematical reasoning, connections, and representations to**

- Sort and classify concrete objects into
appropriate subsets (categories) based on one or two attributes, such as size,
shape, color, and/or thickness (e.g., sort a set of objects that are both red
and thick).
- Label attributes of a set of objects that has
been sorted.
- Name multiple ways to sort
a set of objects.

### KEY VOCABULARY

*Updated: Aug 22, 2018*