K.8.A

MathKindergarten

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

  1. Give pairs a tray of buttons to sort by one feature into two or three groups, using labeled paper circles.

  2. Show three sorted groups of classroom objects and ask, “What rule was used, and where would this new object go?”

  3. Play Sort Relay: students draw a card, place it on one of three category mats, then explain their choice.

  4. Sort lunch picture cards into fruit, vegetable, and other foods, then organize the cards on a class chart.

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