Deductive Reasoning!

With no homework to check today, we spent most of our time playing around with deductive reasoning problems.  One was a problem I call... the marble problem :)  Ask them about it.

The other time was spent playing with number tricks... and proving they work using deductive reasoning.

Here, you try one!

Pick a number.

Add five.

Double the result.

Subtract four.

Divide by 2.

Subtract the original number.

What was your answer?

Was it 3?  It should have been!  There's deductive reasoning for ya--try it with any number--it works!