Today, please do some Venn diagram practice on the web.

• Do all 14 of the problems on the NLVM Venn diagram page.  (Note, if that doesn't work, google NLVM, then choose grades 6-8 number and operations, and scroll down to the bottom of the list (it's alphabetical--you're looking for "Venn Diagrams")
• When you get to the Venn diagram page, click Show Problem
• Read the instructions over to the right that explain how to erase the shading from a region once you've shaded it (the key is to shift-click)
• Shade in to show the answer to the first problem, and then click Check
• When you have the shading correct, click Next Problem to go on
• Go to the Shodor Venn Diagram Shape Sorter page. 
  
• Choose Guess the Rule , and choose two overlapping sets  .
• Play the game by dragging shapes into the circles to see what goes where
• When you figure it out, guess the rules for the circles
• Play at least 3 times
• See if you can guess the rules without dragging all of the shapes out
• Play the shading Venn diagrams game at SliderMath. 
  
• Try out the Venn Diagram Applet here.  This applet was developed by someone who was used to some different ways of writing the complement and diference (subtraction) for sets.  See if you can figure out how to make these shaded areas: