Philosophy: Branches of Philosophy
Ethics, logic, metaphysics, and epistemology
Philosophy: Branches of Philosophy
Ethics, logic, metaphysics, and epistemology
Philosophy - Grade 9-12
- 1
Match each branch of philosophy to its main question: ethics, logic, metaphysics, and epistemology. The questions are: What is real? What is knowledge? What is good or right? What makes an argument valid?
Think about the root ideas: ethics deals with action, logic deals with reasoning, metaphysics deals with reality, and epistemology deals with knowledge.
Ethics asks what is good or right. Logic asks what makes an argument valid. Metaphysics asks what is real. Epistemology asks what knowledge is. - 2
A student says, "It is wrong to lie to a friend, even if telling the truth is difficult." Which branch of philosophy is this student using most directly? Explain your answer.
The student is using ethics because the statement makes a judgment about right and wrong behavior. - 3
A philosopher asks, "Do numbers exist independently of human minds, or are they human inventions?" Which branch of philosophy does this question belong to? Explain your answer.
Metaphysics often asks whether something truly exists and what its nature is.
This question belongs to metaphysics because it asks about the nature of reality and what kinds of things exist. - 4
Read the argument: All mammals are warm-blooded. Whales are mammals. Therefore, whales are warm-blooded. Is this argument logically valid? Explain why or why not.
The argument is logically valid because the conclusion follows from the two premises. If all mammals are warm-blooded and whales are mammals, then whales must be warm-blooded. - 5
Explain the difference between epistemology and metaphysics using one original example for each branch.
One branch focuses on knowing, and the other focuses on being or reality.
Epistemology studies knowledge, such as asking how we know that a historical event happened. Metaphysics studies reality, such as asking whether the mind and body are separate things. - 6
A person says, "I believe this news story because it is supported by multiple reliable sources and evidence." Which branch of philosophy is most connected to this reasoning? Explain your answer.
This reasoning is connected to epistemology because it concerns the basis for belief, evidence, and how people know whether a claim is true. - 7
Classify each question as ethics, logic, metaphysics, or epistemology: A. Is it ever fair to break a law? B. Can a person know something with absolute certainty? C. Does the self remain the same over time? D. Does this conclusion follow from the premises?
Look for key ideas: right action, knowledge, reality, and valid reasoning.
A is ethics because it asks about fairness and right action. B is epistemology because it asks about certainty and knowledge. C is metaphysics because it asks about personal identity and reality. D is logic because it asks whether a conclusion follows from premises. - 8
Create your own ethical question about school, technology, friendship, or society. Then explain why it is an ethical question.
A correct response should include a question about right and wrong, fairness, responsibility, harm, or duty. For example, "Is it fair to use artificial intelligence to write an essay?" is ethical because it asks about honesty and responsibility. - 9
Read the argument: If it is raining, the ground is wet. The ground is wet. Therefore, it is raining. Identify the logical problem with this argument.
Ask whether the conclusion must be true if the premises are true.
The argument is not logically valid because the ground could be wet for another reason, such as sprinklers or someone washing a car. The conclusion does not necessarily follow from the premises. - 10
In one or two sentences, explain why the question "What is knowledge?" is not the same as the question "What is real?"
"What is knowledge?" asks how people can know or justify beliefs, so it belongs to epistemology. "What is real?" asks what exists or what reality is like, so it belongs to metaphysics. - 11
A philosopher argues that a good action is one that produces the greatest overall happiness. Which branch of philosophy is this claim part of, and what issue is it addressing?
The claim is not only describing happiness. It is using happiness as a rule for judging actions.
This claim is part of ethics because it gives a standard for judging whether an action is good. It addresses how people should decide what is morally right. - 12
Complete the concept map in words: Put the four branches of philosophy in the center and connect each one to a short definition and one example question.
Use one definition and one example question for each branch.
A strong concept map should define ethics as the study of right and wrong with an example such as "What should I do?" It should define logic as the study of valid reasoning with an example such as "Does the conclusion follow?" It should define metaphysics as the study of reality and existence with an example such as "What is the self?" It should define epistemology as the study of knowledge with an example such as "How do I know this is true?"