CCSS.Math.Content.K.CC.B.5
The standard
Count to answer "how many?" questions about as many as 20 things arranged in a line, a rectangular array, or a circle, or as many as 10 things in a scattered configuration; given a number from 1—20, count out that many objects.
Common Core State Standards for Mathematics · Counting and Cardinality
What this standard means
Students need to count objects accurately and say the total. They should handle objects in lines, arrays, circles, and small scattered groups. They also need to make a set when given a number, like putting out 14 cubes.
Mastery looks like one-to-one counting, steady number order, and knowing the last number tells how many. Students often double-count in circles or scattered groups, skip objects, or keep counting after the total. Some can count by memory but cannot build a matching set.
Ways to teach it
- Hands-on: Give students 20 counters and number cards, then have them draw a card and count out that many counters on a mat. Эх
- Prompt: Show a circle of 12 dots and ask, “How can we keep track so we count each dot once?”
- Quick assessment: Place 10 scattered bears on a tray and ask the student to count them, then explain how many there are.
- Real-world connection: Count snack crackers, crayons, or cubbies together, then ask students to make a group of a given number.
Plan a lesson for CCSS.Math.Content.K.CC.B.5
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Related standards
- CCSS.Math.Content.1.NBT.A.1
Count to 120, starting at any number less than 120. In this range, read and write numerals and represent a number of objects with a written numeral.
- CCSS.Math.Content.K.CC.B
Count to tell the number of objects.
- CCSS.Math.Content.K.CC.A.3
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).
- CCSS.Math.Content.K.CC.B.4a
When counting objects, say the number names in the standard order, pairing each object with one and only one number name and each number name with one and only ...