Quiz show inductive & deductive reasoning

Quiz Show!Inductive & Deductive Reasoning

Deductive & Inductive Reasoning Tips

• If the conclusion is based on a collection of evidence—even if it’s just one piece of evidence—it’s inductive reasoning.Examples Rule


• If the conclusion applies a general rule or principle to a specific example, it’s deductive reasoning.

Rule Example


• If the conclusion reached draws from previous rules/thoughts/ideas (a priori knowledge), it’s deductive reasoning.

Previous ideas Example


• If the conclusion is conjecture (a guess) based on previous knowledge, it’s deductive reasoning.

Previous knowledge Guess


• Stereotypes are usually based on deductive reasoning.

Brazilians run around with no

clothes on.

Luana is Brazilian, so she must run

around with no clothes on!


• BUT stereotypes can be created based on inductive reasoning.

Mario and Luigi are Italian and

work as plumbers.

All Italians are plumbers!


• Though deductive and inductive reasoning are both types of logic, they are not always true, and they can lead to some silly ideas.Potatoes have eyes.

I have eyes.I am a potato!

Liberals believe that there should be no prayer in

school and that government buildings

should not put up Christmas decorations.

They also believe in evolution and the Big

Bang Theory. Liberals are anti-Christian.

Inductive

Conservatives believe that poor people deserve to be poor because they made bad decisions. They also believe that girls who are raped should have their

babies anyway. They want to cut back on Medicare and

Medicaid, which would hurt the elderly. Conservatives

are coldhearted.

Inductive

Soft drinks are bad for you because

they’re loaded with sugar. Since Dr. Pepper is a soft

drink, it must be bad for you.

Deductive

All men are mortal. The Pope is a man. The Pope is mortal.

Deductive

Did you hear about that drug company

that raised the prices on a drug 5000%? All

those drug companies are

greedy and selfish.

Inductive

In the survey, the majority of people who identified as

conservative did not believe global warming was real, and the majority who identified as

liberal did believe global warming was real. Thus, we

can conclude that conservatives do not believe global warming is real, and

liberals believe it is real.

Inductive

Boys will be boys. Martin is just

being a boy when he makes sexist

remarks.

Deductive

I heard a news report about some Syrians who are terrorists. I

believe we should kick Syrians out of the

country because they might be terrorists.

Inductive

If some people from Norway are Viking

marauders, then all people from Norway

must be Viking marauders. Break out

the trebuchet!

Inductive

Australians are laid back hippies. If that

guy you met online is from Australia, I’ll bet you $100 he hangs out on the beach all day and smokes pot.

Deductive

Terrible things happen in the world—earthquakes,

tsunamis, mass murders, starvation. Obviously God does

not exist.

Inductive

Miracles happen all the time. People

recover from terminal illnesses and survive accidents that should kill them. Obviously

God is real.

Inductive

The Bible says giants once walked the

earth, so giants once walked the earth.

Deductive

Geniuses are forgetful and do weird things normal people don’t do. I can’t remember where I parked my

car, and I wear cowboy boots to the

beach. I am a genius!

Deductive

Inductive

Deductive

Inductive

Quiz show inductive & deductive reasoning

Education

Transcript of Quiz show inductive & deductive reasoning