Elementary School Lessons

Notes #14

Zero Property of Addition: any number added to zero is always equal to the same number.

Commutative Property of Addition: changing the order of the addends does not change the sum.

Associative property of addition: Changing the grouping of the addends does not change the sum.

Notes #12

Numbers that end in 0, 2, 4, 6, 8 are called even numbers.

Numbers that end in 1, 3, 5, 7, 9 are called odd numbers.

Notes #13

Addition is the process of combining of putting things together.

The addends are numbers that we put together.

The sum or the total is the answer in addition.

The symbol for addition is the plus (+) sign.

Notes #10

We can order numbers from the least to the greatest.

3, 7, 17, 36, 68

We can order numbers from the greatest to the least.

74, 52, 29, 18, 5

 

Notes #11

Ordinal numbers tell us the order or positions of objects in a given arrangement.

First

Second

Third

Fourth

Fifth

Sixth

Seventh

Eighth

Ninth

Tenth

Notes #10

Rhyming words are words that have the same ending sound.

book – hook

gate – late

moon – spoon

Notes #9

Classifying names of objects mean identifying objects that go together.

Vegetables: ____________________________ Fruits:________________________________ Pets:__________________________________ Toys:_________________________________

Notes #8

Comprehension

1. Who answers the question about persons.
2. When answers the question about time.
3. Where answers the question about place.

Notes #6

Words that can be counted are called countable name words.

Examples are apples, children, chairs.

Words that cannot be counted are called not countable name words.

Examples are sugar, rice, salt, juice.