Daily Archives: October 2, 2009

FAMILY MATH NIGHT

I hope to see all of you at “Family Math Night” Tuesday, October 6th.  Come build a “Family Puff Mobile”, a Straw Tower, participate in the “Metrics Olympics, as well as many other fun math games.  Dinner at 5:30.  Puff Mobile races at 7:00.

Arcadia Fund Raiser

Orders and money are due Monday,  October 5th. 

Class pictures Wednesday, October 7th.

NO school for the kids Friday, October 9th.  (Mrs. Palanio has to go to school that day, no playing allowed for her!)

Math: Is it “prime” or “composite”?

Ask your child to explain, using example, the difference between prime and composite numbers.  Have them write the all of the prime numbers less than 30.  What about one and zero?

What are factors?  The factors for 24 are: 1, 2, 3, 4, 6, 8, 12, 24  Can you find the factors for 36 and 12.  Do 36 and 12 have any common factors?  What is the Greatest Common Factor (GFC). 

All multiples of three have a digital root of 3, 6 or 9.  All even numbers are multiples of 2.  Ask your child what he or she knows about the multiples of nine and six.  (These are also know as the “divisibility rules“.)

Required fifth grade math vocabulary:

prime numbers,  composite numbers, factors, GCF, multiples, divisibility rules, digital root

Science is “A-Grow’in”

We started our Science unit on “Environments” this week.  Ask your child what they are doing in science.