Exploring Doubles and Even/Odd Numbers

Miss Hazal introduces the concept of doubles facts to help understand even and odd numbers. She explains that adding the same number twice results in an even number, using examples from 0 to 12 and larger numbers like 21. Patterns in totals are identified, and arrays are used to visualize these concepts. The lesson concludes with a summary and a preview of the next topic.

What pattern do the totals of doubles facts follow?

• Random counting

• Count by fives

• Count by twos

• Count by threes

Tags

CCSS.3.OA.D.9

What is the result of adding the same odd number twice?

• An even number

• A multiple of ten

• An odd number

• A prime number

Tags

CCSS.3.OA.D.9

What is the sum of 2 plus 2 in the context of doubles facts?

• 8

• 6

• 4

• 2

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2

Why is the sum of two odd numbers considered even in doubles facts?

• Because adding two odd numbers always results in an even number

• Because they are divisible by two

• Because they are greater than 10

• Because of multiplication

Tags

CCSS.3.OA.D.9

What is the result when adding the same even number twice?

• An odd number

• A prime number

• A negative number

• An even number

Tags

CCSS.3.OA.D.9

How does the sum of 21 plus 21 demonstrate the concept of doubles facts?

• Results in an odd number

• Results in a prime number

• Results in an even number

• Results in a number greater than 50

Tags

CCSS.3.OA.D.9

What does the example of adding 21 plus 21 illustrate about doubles facts?

• They can result in a prime number

• They sometimes result in an odd number

• They always result in an even number

• They always result in a number less than 50

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2

What is the sum of 5 plus 5 according to doubles facts?

• 20

• 15

• 10

• 5

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2

What conclusion can be drawn from the sum of 5 plus 5?

• It is always even

• It is always odd

• It is a prime number

• It is a multiple of five

Tags

CCSS.3.OA.D.9

What will be discussed in the next session?

• Division rules

• Another trick with even and odd numbers

• Subtraction tricks

• Multiplication facts

Tags

CCSS.3.OA.D.9