I had a parent fail to show up for an activity today and needed something quick to fill the time. Students had just shared their leprechaun traps. I paired them up and gave each an iPad. I gave each pair 15 minutes to look at the 2 leprechaun traps and compare them using the compare/contrast part of Tools4Students. I love this app, great for last minute time filler when you don't have worksheets printed!