Standard: K.OA.A4 – For any number from 1 to 9, find the number that makes 10 when added to the given number, e.g., by using objects or drawings, and record the answer with a drawing or equation.
Grade level: Kindergarten
Subject: Mathematics
Domain: Operations & Algebraic Thinking
Teacher Overview
This standard focuses on helping students understand the concept of making 10 by finding pairs of numbers that add up to 10. This foundational skill is critical for developing future mathematical understanding and problem-solving abilities. Students should be comfortable with counting numbers from 1 to 9 and have a basic grasp of simple addition.
After mastering this standard, students will move on to more complex addition and subtraction, developing a deeper understanding of number relationships and basic algebraic thinking.
Common Misconception 1
Some students may incorrectly believe that only consecutive numbers can be added to make 10. This misconception can hinder their ability to explore various number combinations.
Intervention 1
To address this, teachers can provide a variety of examples and use visual aids like ten-frames to demonstrate different pairs of numbers that add up to 10.
Common Misconception 2
Students may find it challenging to grasp the concept of ‘making 10’ without concrete visual aids, leading to confusion.
Intervention 2
Teachers should incorporate hands-on activities using objects like blocks or beads and encourage students to draw pictures to visually represent the concept.
Prerequisite Knowledge
Students should have a basic understanding of counting numbers from 1 to 9 and simple addition within 10.
Subsequent Knowledge
After mastering this standard, students will develop skills in more complex addition and subtraction, understanding number relationships, and basic algebraic thinking.
Instructional Activities
- Using ten-frames and counters to find pairs that make 10
- Playing matching games with cards that add up to 10
- Drawing pictures to represent different ways to make 10
- Using fingers to show different combinations of numbers that add up to 10
- Engaging in group activities where students combine objects to make 10
