K.CC.A.3 is a part of the major cluster **Know Number Names and the Count Sequence** (K.CC.A). K.CC.A is a major cluster, which means that it is important to focus attention here as major work represents 65 to 80 percent of the grade level content. Below I will break down the focus of each standard as well as the common misconceptions, prerequisite knowledge, vocabulary, and strategies to support students with disabilities.

### What does the standard say?

K.CC.A.3 states that students should *Write numbers from 0 to 20. Represent a number of objects with a written numeral 0-20, with 0 representing a count of no objects.*

### About K.CC.A.3

One way students can learn the left to right orientation of numbers is to use a finger to write sky write, on their knee, arm, or hands, or on a partner’s back. Children will see mathematics as something that is alive and that they are involved. This will especially meet the needs of kinesthetic learners.

Students should study and write numbers 0 to 20 in this order: numbers 1 to 9, the number 0, then numbers 10 to 20. They need to know that 0 is the number of items left after all items in a set are taken away. Do not accept “none” as the answer to “How many items are left?” for this situation.

### Common Misconceptions for K.CC.A.3

When teaching K.CC.A3, we should consider that when writing numerals, it is not uncommon for students to write reversals. Students often write an E for a 3. Confusing a 6 and 9 is also a common error. Asking students to sky write numbers in the air, may reinforce the correct direction.

### Prerequisite Skills

Use a writing tool to reproduce or trace a given shape

### Vocabulary

number, numeral, number names zero to twenty, count, represent, write

### Strategies to Support Students with Disabilities

●Write/reproduce numerals in the air, in sand, in clay, on whiteboards, etc.

●Use the calculator for numeral recognition and to develop familiarity with numerals

●Practice writing the numerals from 0 to 20 in sequential and random order after teacher modeling

●Move between number names, numerals, and pictured sets

●Identify a number between 1 and 20 on a number line or hundreds chart, then reproduce that number

●Lead the class to count the objects in a set, then instruct the students to write the number of objects counted

●Have student roll a dot or number die and then record the number on paper (roll and write)