Standard: 1.NBT.A1 – 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.
Grade level: Grade 1
Subject: Mathematics
Domain: Number & Operations in Base Ten
Teacher Overview
This standard focuses on helping students count to 120, starting at any number less than 120, and to read and write numerals within this range. It’s important because it lays the foundation for understanding place value and performing basic arithmetic operations. Students should be able to count to 20, recognize and write numerals up to 20, and understand the concept of quantity.
After mastering this standard, students will be able to perform addition and subtraction within 100, understand place value, and solve problems involving larger numbers.
Common Misconception 1
A common misconception is that the sequence of numbers is arbitrary. This is incorrect because the sequence of numbers follows a specific order that is essential for understanding place value and arithmetic.
Intervention 1
Using a number line can help students visualize the fixed sequence of numbers. Practice counting forward and backward using the number line to reinforce this concept.
Common Misconception 2
Another common misconception is confusing the written numeral with the quantity it represents. This confusion can hinder their ability to perform arithmetic operations.
Intervention 2
Using manipulatives such as counters or blocks can help students physically represent numbers and match these representations with written numerals, reinforcing the connection between numerals and quantities.
Prerequisite Knowledge
Students should be able to count to 20, recognize and write numerals up to 20, and understand the concept of quantity.
Subsequent Knowledge
After mastering this standard, students will be able to perform addition and subtraction within 100, understand place value, and solve problems involving larger numbers.
Instructional Activities
- Count objects in the classroom and write the corresponding numerals.
- Use a number line to practice counting forward and backward.
- Play counting games that involve reading and writing numbers up to 120.
- Use manipulatives to represent numbers and match them with written numerals.
- Create a number book where each page represents a number up to 120 with illustrations.
