K.2.B

MathKindergartenNumber and operations

The Standard

read, write, and represent whole numbers from 0 to at least 20 with and without objects or pictures

Texas Essential Knowledge and Skills for Mathematics

Teacher's field guide

What This Standard Means

What Students Need to Do

Students name and write numerals from 0 through 20. They match each numeral to a quantity shown with objects, drawings, dots, or frames.

What Mastery Looks Like

Students correctly name and write any numeral from 0 through 20. They can show each number with counters, drawings, or a ten-frame, including an empty set for zero.

Common Misconceptions

Students may reverse numerals or confuse 12 with 21. They may count objects correctly but choose the wrong numeral. Some think zero means one object or skip zero entirely.

How to Assess It

Give each student the numbers 0, 7, 14, and 20. Ask them to read each number, write it, and draw that many dots.

Lesson moves

Ways to Teach It

  1. Give students numeral cards, counters, and ten-frames, then have them build and write each number they draw.

  2. Show 16 dots and ask, “How do you know there are 16 without starting over?”

  3. Play Number Match with numeral cards, dot cards, and ten-frame cards for quantities from 0 through 20.

  4. Count classroom items, such as pencils or chairs, then make a label showing each total with a numeral and picture.

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