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Math Edition

Math Skill:  Greater Than and Less Than
ALWAYS read number sentences from LEFT to RIGHT, just as you do a book.  This will help you to understand these confusing symbols a little better.
Examples:
25  >  22  --- 25 is Greater Than 22
30  <  55  ---  30 is Less Than 55

Math Skill:  Fact Families:
-number sentences that go with a set of numbers
Example:   The fact family for the numbers
6, 7, 13
7 + 6 = 13                 13 - 7 = 6
6 + 7 = 13                 13 - 6 = 7

They "undo" each other!

Skip Counting:
Counting by 2s, 5s, and 10s to 100.

2, 4, 6, 8, 10...
5, 10, 15, 20, 25, 30...
10, 20, 30, 40, 50...
2, 12, 22, 32, 42, 52...

Odd and Even
Odd numbers are numbers that cannot be equally shared or divided.  Examples: 1,3,5,7,9
Even numbers are numbers that can be equally shared or divided.  Examples: 0,2,4,6,8

Fractions
Halves - 2 equal parts of a whole         1/2 - 1 out of 2 equal parts
Thirds - 3 equal parts of a whole         1/3 - 1 out of 3 equal parts
Fourths - equal parts of a whole         1/4 - 1 out of 4 equal parts

Place Value
Place value is the value of a digit as determined by its position in a number, the name of the place or location of a digit in a number.

When we write numbers, the position (or "place") of each number is important.

In the number 327:

• the "7" is in the Ones position, meaning just 7 (or 7 "1"s),
• the "2" is in the Tens position meaning 2 tens (or twenty),
• and the "3" is in the Hundreds position, meaning 3 hundreds. This number can also be written as:
• three hundred twenty seven
• 300 + 20 + 7

Geometric Shapes
Plane shapes- 2 dimensional figures (examples: square, circle, triangle, rectangle, pentagon, and hexagon)
Solid shapes- 3 dimensional figures (examples: cylinder, cone, rectangular prism, pyramid, and cube)