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Learn the commutative property. Apply the commutative property to count on from a larger addend.
In Grade 1, the commutative property is often introduced in a basic and concrete way, especially in relation to addition. The commutative property states that the order in which two numbers are added or multiplied does not affect the sum or product. Here’s how you might introduce and explore the commutative property with Grade 1 students:
Introduction to Commutative Property:
Start by explaining the commutative property in simple terms. For addition, you can say that changing the order of numbers when adding them does not change the sum.
Visual Representation:
Use visuals like pictures or objects to demonstrate the commutative property. For example, if you have three apples and two oranges, show that 3 + 2 is the same as 2 + 3.
Hands-On Activities:
Engage students in hands-on activities where they can physically manipulate objects to observe the commutative property. Use counters or other objects to represent numbers.
Simple Equations:
Demonstrate the commutative property through simple addition equations. For instance, show that 2 + 4 is the same as 4 + 2.
Verbal Explanation:
Encourage students to use words like “order doesn’t matter” or “the same even if we switch” when describing the commutative property.
Relate to Real-Life Examples:
Relate the commutative property to real-life situations. For instance, if you have three friends and two more friends join, it’s the same as having two friends join first and then three more join.
Keep in mind that the focus in Grade 1 is on building a foundational understanding, and concrete examples and hands-on activities will help make the concept more tangible for young learners. The goal is to foster an awareness that the order of numbers in addition doesn’t change the result, laying the groundwork for a more formal understanding of the commutative property in later grades.
Click on the following worksheet to get a printable pdf document.
Scroll down the page for more Commutative Property Worksheets.
Printable
(Answers on the second page.)
Commutative Property Worksheet #1
Commutative Property Worksheet #2
Commutative Property Worksheet #3
Commutative Property Worksheet #4
Add One or One More
Add by Counting On
Missing Addend (eg. __ + 5 = 7)
Number Sentence (+, –, =)
Number Sentence (plus, minus, equals, not equals)
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