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Topic: Other Issues for Grades 2 and 3
Replies: 109   Last Post: Feb 24, 2009 9:31 PM

 Messages: [ Previous | Next ]
 Lee Ann Posts: 1 Registered: 12/3/04
Re: Is zero even or odd?
Posted: Oct 4, 2003 11:28 PM

Zero is neither even or odd, because zero is nothing, and you cannot
make a picture of zero. This was the conclusion my 3rd graders came
up with after working on the concept of even and odd numbers. We built
pictures of numbers in the shape of 2x_ arrays. If the number had a
tail it was odd, if the number had a partner it was even. Since zero
can't be made into a picture, it is neither.

We started by drawing the numbers on graph paper. Then we made the
numbers in 2x_ arrays with tiles. The next activity had students
manipulating number puzzle pieces made from the 1 inch graph paper
copied onto tag board. The students built number combinations,
including 3+5, 2+4, 3+4. We paired pictures of the numbers to learn
what happens when an odd number was paired with an odd number. The
students generalized the ideas of odd+odd=even, because the "tails"
fit together to form a partner. That even+even=even (all pictures
have partners), and even+odd=odd, because the odd number will have a
tail.
After each activity, students wrote about the idea of even and odd in
their math journals. To me, the personal writing is a critical step in
student concept development. Each student had to explain why a number
was even or odd in their own words. Their writing evolved as they did
each activity.

Date Subject Author
11/24/98 wendy
4/9/99 Gretchen Barberena
4/16/99 Annie B. Thomas
4/20/99 Wendy Gulley
5/19/99 Sherry Rosenberg
11/9/99 Debbie Junk
5/24/99 Katy O'Reilly
10/17/02 betsy
5/27/99 Mary Wheeler
6/8/99 Louise Law
6/8/99 Claire Groden
2/7/00 marty
2/29/00 stephanie
5/23/00 Cynthia Joerres
6/28/00 Katy O'Reilly
6/19/00 Patricia Williams-France
6/28/00 Katy O'Reilly
6/22/00 Patricia Williams-France
6/28/00 Katy O'Reilly
9/28/00 NICK
9/29/00 Michele McCracken
10/2/00 julie
10/10/00 NICK
10/10/00 Wayne
10/11/00 NICK
10/2/00 Paul Hickman
10/12/00 Sue Kuhn
10/12/00 jansa
10/13/00 Wendy Gulley
11/19/00 Susan Weiss
12/20/00 Joanne Edelstein
12/20/00 Martha LaPoionte
12/27/00 Sam Morris
2/16/01 Jackie Brown
2/16/01 Candace Bartsch
2/16/01 Karen Fredricks
1/8/01 Murray Wickwire
1/17/01 Wendy Gulley
2/18/01 Jackie Brown
2/13/01 Candace Bartsch
2/13/01 Cynthia Garland-Dore
2/16/01 Gary Shevell
2/19/01 Candace Bartsch
2/15/01 Katy O'Reilly
2/16/01 Candace Bartsch
2/16/01 Katy O'Reilly
2/17/01 Rachelle Tome
4/2/01 Joanne Edelstein
2/17/01 Wayne
2/17/01 Rodger Smith
2/22/01 Wendy Gulley
2/19/01 Brenda
2/19/01 Wayne
5/12/01 Sara
5/12/01 Martha LaPoionte
5/13/01 Jackie Brown
5/23/01 Candace Bartsch
5/13/01 Rodger Smith
5/22/01 shewchuk
5/22/01 Wayne
5/22/01 Rodger Smith
7/30/01 Melissa
7/31/01 Andrea Smith
2/9/02 Diane Iannaccone
3/6/02 Joanne Edelstein
3/7/02 Rachelle Tome
3/11/02 Ann Zumkley
3/11/02 Susan Surby
3/12/02 Bob Meyer
5/19/02 Dana Thome
6/21/02 Laura
6/26/02 Megan Murray
6/23/03 Cindy
9/12/02 j.bushman
9/14/02 Cynthia Garland-Dore
12/15/02 DDI
12/15/02 Wayne
4/23/03 Carol K.
4/23/03 Karrin
4/23/03 Cynthia Garland-Dore
4/1/03 Judy Reed
5/1/03 Mona Starr
5/1/03 Sarah Hogg
5/7/03 Rob Polley
6/23/03 janet
6/23/03 Linda
6/23/03 Deb
8/24/03 michele
10/4/03 Lola
10/5/03 Diane
9/18/03 Candace Bartsch
10/1/03 Paul
10/2/03 Candace Bartsch
10/4/03 Lee Ann
11/5/03 Paul Hickman
2/24/09 jenn
10/8/03 Deb
11/19/03 Kathryn
11/20/03 Paul Hickman
3/29/04 Phil Copeland
3/30/04 Jeff Barrett
3/30/04 Angela Kiser
3/31/04 Judy Meicenheimer
4/12/04 Candace Bartsch
4/14/04 Cynthia Garland-Dore
4/12/04 Candace Bartsch
4/13/04 Judy
6/22/04 Linda Boland