The Case Files
Sometimes we don’t know the answer right away. We have to look at different cases (possibilities) and see which one fits all our rules!
The Liar’s Mystery
Liar’s Day! Both boxes are telling a lie!
Box A: “It’s in me!”|Box B: “It’s not in me!”
Since BOTH are lying, where is the battery?
Box A
Box A
Box B
Box B
Battery
Case Study: The Happy Robot
If Case 1 is true, Sparky is happy. If Case 2 is true, Sparky is happy. We know either Case 1 or Case 2 MUST be true!
Is Sparky happy? Drag him into the 'YES' circle!
YES
YES
NO
NO
Sparky