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Monday, October 8, 2012

Math Vocabulary

Today was crazy busy in math.  We are starting our exploration and learning of multiplication including factors, prime numbers, multiples and square numbers.  We watched a few video clips to reinforce these new vocabulary words.  At home your student can practice skip counting by any single digit number.  There are a lot of clips on youtube that are fun ways to sing and count by 3, 4, 6, 7, 8, 9.  This reinforces the concept of multiples.  Have fun counting!

Square Numbers are numbers you get when you multiply an integer by itself.  Example: 4 × 4 = 16, so 16 is a square number.

Here are the first few square numbers:
0 (=0×0)
1 (=1×1)
4 (=2×2)
9 (=3×3)
16 (=4×4)
25 (=5×5)


Prime Numbers are numbers that can be divided evenly only by 1, or itself. Example: 5 can only be divided evenly by 1 or 5, so it is a prime number.  But 6 can be divided evenly by 1, 2, 3 and 6 so it is NOT a prime number (it is a composite number). 


Multiples are the result of multiplying a number by an integer (not a fraction).  You can find multiples by skip counting.

Multiples of 3
Multiples of 6
Multiples of 7
Multiples of 9