K.8.A
The Standard
collect, sort, and organize data into two or three categories
Texas Essential Knowledge and Skills for Mathematics
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students gather simple information or objects and group them by one clear feature, such as color, shape, or type. They arrange the groups so others can see and compare them.
What Mastery Looks Like
- Given a mixed set, a student can choose or follow a sorting rule and place every item into one of two or three groups. The student can name each group and explain where an item belongs.
Common Misconceptions
- Students may change the sorting rule midway, place one item in several groups, or leave out items that seem different. They may also name groups by individual objects instead of a shared feature.
How to Assess It
- Give each student six picture cards: an apple, banana, carrot, ball, doll, and car. Ask, “Make two or three groups, name each group, and tell your sorting rule.”
Lesson moves
Ways to Teach It
Give pairs a tray of buttons to sort by one feature into two or three groups, using labeled paper circles.
Show three sorted groups of classroom objects and ask, “What rule was used, and where would this new object go?”
Play Sort Relay: students draw a card, place it on one of three category mats, then explain their choice.
Sort lunch picture cards into fruit, vegetable, and other foods, then organize the cards on a class chart.
Keep exploring
Related Standards
- 5.9.A
represent categorical data with bar graphs or frequency tables and numerical data, including data sets of measurements in fractions or decimals, with dot plots ...
- 2.10.B
organize a collection of data with up to four categories using pictographs and bar graphs with intervals of one or more
- K.6.E
classify and sort a variety of regular and irregular two- and three-dimensional figures regardless of orientation or size
- 1.8.A
collect, sort, and organize data in up to three categories using models/representations such as tally marks or T-charts
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