Recognize and use measures of weight and temperature. 0506.4.13

Links verified on 12/19/2009

1. Platform Scales Addition - weigh several items and find the sum in hundredths of a gram also
2. Platform Scales Subtraction - weigh several items and find the difference in hundredths of a gram also
3. Using a Platform Scale - practice using scales like the one in a doctor's office, five Gregs will drop on the scale, waiting to be weighed, see how quickly you can weigh them also