# Properties of Addition - Part 2 - Lesson for Grade 1, Chapter - Addition and Subtraction - less than 20

In "Properties of Addition - Part 2," first-grade students will deepen their understanding of addition within the "Foundations in Operations Within 100" unit, specifically focusing on addition and subtraction of numbers less than 20. This lesson is designed to introduce and practice two fundamental properties of addition: the Identity Property and the Associative Property.

Understanding the Identity Property of Addition, which states that any number plus zero equals the number itself, is crucial for students. Through the "Space Addition: Identity Property Practice Worksheet," students will learn that adding zero to any number does not change the value, reinforcing the concept of addition as an increase in quantity. This foundational knowledge is essential for developing numerical fluency and confidence.

Similarly, the Associative Property of Addition, teaching that the way numbers are grouped in an addition problem does not change the sum, will be explored. Activities like the "Bee Addition: Associative Property Practice Worksheet" allow students to practice this concept through engaging, themed problems. Grasping the Associative Property helps students understand addition's flexibility, encouraging mental math strategies and problem-solving skills.

Estimated classroom time: 18 min
Chapter: Addition and Subtraction - less than 20
Unit: Foundations in Operations Within 100
Click on any activity below to start learning.
1st
4:00 min
video
2nd
3:00 min
Space Addition: Identity Property Practice Worksheet
worksheet
3rd
4:00 min
Associative Property Practice
video
4th
3:00 min
Bee Addition: Associative Property Practice Worksheet
worksheet
5th
4:00 min
Quiz
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• ### Activity 2 / Space Addition: Identity Property Practice Worksheet

Now that your little mathematician has learned about the important concept behind the identity property of addition, it’s time to put their knowledge to practice! Blast off into outer space with this adorable worksheet from Kids Academy that tasks children with adding by zero. Not only will early learners find the total sum, but they will also solve for the missing number in an equation, giving them valuable pre-algebraic practice!

• ### Activity 4 / Bee Addition: Associative Property Practice Worksheet

Join us at the beehive to continue practice working with the associative property of addition! This delightful worksheet will have your child buzzing with addition facts by comparing equations to find those that have the same sum as the 3-digit problem in the hive. Solve each to determine the correct answers and trace the dotted line to show the worker bees home. Find all the matching equations to complete the sheet!

• ### Activity 5 / Properties of Addition - Quiz

Students will be asked to find sums using the commutative, associative, and identity properties of addition.