Sophia: Using Deductive Logic

Students develop a strategy list for problem solving by working with different types of problems. They recognize problems that may be solved using deductive reasoning and solve deductive reasoning problems.

Introduce pupils to the two types of reasoning, inductive and deductive. Classmates work in pairs or small groups to learn the difference between the two and apply these reasonings to develop valid conclusions. 

This lesson demonstrates the use of a process of elimination in order to solve a problem. It is 11 of 13 in the series titled "Using Deductive Logic."

This lesson demonstrates the use of a process of elimination in order to solve a problem. It is 1 of 13 in the series titled "Using Deductive Logic."

This lesson demonstrates the use of a process of elimination in order to solve a problem. It is 10 of 13 in the series titled "Using Deductive Logic."

In this lesson, students see how to use inductive logic in order to solve a problem. It is 1 of 8 in the series titled "Using Inductive Logic."

Can you use math and logic to beat the bad guys? You can in space! Take an intergalactic trip into a seedy and speedy crime syndicate with the Seven Planets Riddle, which challenges two interstellar police officers to use deductive...

Given conjectures about quadrilaterals, the student will use deductive reasoning and counter examples to prove or disprove the conjectures.

Given conjectures about circles, the student will use deductive reasoning and counterexamples to prove or disprove the conjectures.

Students recognize problems that may be solved using deductive reasoning, and develop aids to help them in solving these problems. They produce their own deductive reasoning puzzles for other students to solve.