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##### Positive and Negative Numbers Help

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 resource gal Joined: Aug 2010 Posts: 32 Junior Member
resource gal

Joined: Aug 2010
Posts: 32
Junior Member
Positive and Negative Numbers Help
02-29-2012, 02:30 PM
 #1

I will be teaching fifth graders how to add and subtract positive and negative numbers next week. This always seems so confusing for my struggling students. I was wondering if anyone had any ideas, or any cute phrases to help them remember the rules.

 jcole25857 Joined: May 2011 Posts: 534 Senior Member
jcole25857

Joined: May 2011
Posts: 534
Senior Member
Numeber Lines!
02-29-2012, 05:44 PM
 #2

Be sure to use a number line. It will really help them visualize what they are doing.

 Century46 Joined: Jun 2011 Posts: 520 Senior Member
Century46

Joined: Jun 2011
Posts: 520
Senior Member
03-01-2012, 04:40 PM
 #3

I make a walkable number line on my floor, that we then we use it to model addition and subtraction of positive and negative integers.

They stand on the first number and if they are adding, face the positive end and if they are subtracting they face the negative end.

Then, they walk forward if the second number is positive and walk backwards if it is a negative number. They end up on the answer.

Then, we transfer this same skill to a small number line on their desk. It really helps my kiddos learn this skill. I see them turn their bodies a little in their seats to "remember" how to do it.

 Lakeside Joined: Oct 2009 Posts: 5,257 Senior Member
Lakeside

Joined: Oct 2009
Posts: 5,257
Senior Member

03-03-2012, 04:01 AM
 #4

I love the walkable number line!!

 romo Joined: Nov 2009 Posts: 41 Junior Member
romo

Joined: Nov 2009
Posts: 41
Junior Member

03-03-2012, 05:40 AM
 #5

A friend of mine would use different colored magnets. Blue for negative, red for positive and would demonstrate on the marker board. These were left up for the kids to use anytime. Some even went out and used them on their own white boards.

 resource gal Joined: Aug 2010 Posts: 32 Junior Member
resource gal

Joined: Aug 2010
Posts: 32
Junior Member
Thanks!
03-03-2012, 04:13 PM
 #6

I'll try the number line idea and see if I can get the magnets.

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