Teacher2Teacher 
Q&A #688 
View entire discussion [ next >>]
From: T. Gibbs <hggibbs@lorettotel.net> To: Teacher2Teacher Public Discussion Date: 2000010620:00:26 Subject: roundingapproximating I teach third grade. I made two large hands. On the left hand I put 04 on left finger tips, and 59 on the right finger tips. I label LEFTLEAVE IT HAND, and RIGHTRAISE IT HAND. When explaining to students to round off to a particular place, I tell them that that is the target digit. Underline it. The digit to the right (circle it) is the "bossy neighbor". Look at the hands to see where the "bossy neighbor" is. If it is on the left hand the target is left as is and everything to the right becomes a zero. If the "bossy neighbor" is on the right hand, the target raises to the next digit, and everything to the right becomes a zero. This has worked very successfully.
Post a reply to this message

[Privacy Policy] [Terms of Use]
Math Forum Home 
The Math Library 
Quick Reference 
Math Forum Search