Elapsed Time

Calculating elapsed time, or time that has passed, can sometimes be tricky.  Here are two interactive activities to practice finding elapsed time.  The links will direct you to the activity, so to read about elasped time, click on the tab "learner".  Have fun!

http://www.shodor.org/interactivate/activities/ElapsedTime/

http://www.shodor.org/interactivate/activities/ElapsedTimeTwo/

Temperature and Elevation

If you were not able to explain how the temperatures changed as your family traveled up Pikes Peak on the Cog Railway, listen to Bill Nye the Science Guy.  

Subtracting Customary Units of Measurement with Ungrouping

Click on the link below to view an example of subtracting gallons and quarts using ungrouping....not borrowing! 


http://www.showme.com/sh/?h=pm0Dzzk

Adding Metric Units of Measurement using Regrouping

Below is an example of adding liters and kiloliters with regrouping.


http://www.showme.com/sh/?h=mJmf16m

Subtracting Metric Units of Measurement with ungrouping

Click on the link below for an example of subtracting grams and kilograms with ungrouping.


http://www.showme.com/sh/?h=J2tRVXk

Adding Customary Units of Measurement with regrouping

Click on the link below to view an example of adding quarts and pints with regrouping.


http://www.showme.com/sh/?h=b8YcFCi

The Water Cycle