Free Propositions Lesson Plan for 7th Grade Students

Topic: Propositions

Objectives & Outcomes

• Students will be able to define a proposition and identify its parts (subject, verb, object).
• Students will be able to analyze and evaluate the truth value of a given proposition.

Materials

• Whiteboard and markers
• Handouts with examples of propositions

Warm-up

• Ask students if they have ever heard of propositions before.
• Ask for volunteers to provide examples of propositions.
• Write the examples on the board.

Direct Instruction

• Define "proposition" as a statement that can be true or false.
• Explain that there are two types of propositions: affirmative and negative.
• An affirmative proposition is a statement that is true. For example, "The sky is blue."
• A negative proposition is a statement that is false. For example, "The sky is not blue."
• Explain that propositions can be either conditional or absolute.
• A conditional proposition is a statement that is true only if certain conditions are met. For example, "If you jump off a bridge, you will fall."
• An absolute proposition is a statement that is true regardless of the circumstances. For example, "The sky is blue today."
• Explain that there are three types of terms that can be used in propositions: subject, predicate, and object.
• The subject is the person or thing being talked about. For example, "The sky" is the subject in the affirmative proposition "The sky is blue."
• The predicate is the action or state being described. For example, "is blue" is the predicate in the affirmative proposition "The sky is blue."
• The object is the thing being acted upon or affected by the action or state. For example, "you" is the object in the affirmative proposition "If you jump off a bridge, you will fall."
• Give an example of each type of proposition using subject, predicate, and object.

Guided Practice

• Give students a few examples of affirmative, negative, conditional, and absolute propositions.
• Have students work in pairs to identify the type of each proposition and the subject, predicate, and object of each.
• Have pairs share their answers with the class and explain their reasoning.

Independent Practice

• Give students a worksheet containing a series of propositions.
• Have students identify the type of each proposition and the subject, predicate, and object of each.
• Have students write a short paragraph explaining the meaning of each proposition and giving an example of a real-life situation that would be true if the proposition were true.

Closure

• Review the different types of propositions and their components.
• Ask students to share any insights or interesting findings from their independent practice.
• End the lesson by reminding students that understanding propositions is an important part of understanding logical reasoning and critical thinking.

Assessment

• Observe students during the guided and independent practice to assess their understanding of the different types of propositions and their components.
• Have students complete a worksheet with questions on different types of propositions and their components to check their understanding.