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. 

If there is a conditional statement, then there is a hypothesis and conclusion. Pupils learn how to identify the parts of conditional statements. Class members continue to work with conditional statements and rewrite them in their many...

Solve and complete 18 problems about angles. First,  demonstrate that each conjecture is false by giving a counterexample. Then write the inverse, contrapositive, and converse for the each statement. In addition, write a...

In this law of syllogism and law of detachment instructional activity, students solve 4 short answer problems. Students use the law of syllogism or law of detachment to come to a conclusion about a set of if-then statements.

In this deductive reasoning instructional activity, 10th graders solve 6 various problems applying deductive reasoning to each. First, they determine if a valid conclusion can be reached from the 2 true statements using the Law of...

In this deductive reasoning worksheet, students solve ten different problems by applying deductive reasoning to each one. First, they determine if a valid conclusion can be reached from each of the 2 true statements given using the Law...

In this conditional statements worksheet, 11th graders solve and complete 15 various types of problems. First, they determine if a conclusion can be reached from the two statements using the law of detachment or the law of syllogism....

In this geometry worksheet, 10th graders use Venn diagrams to describe conditional statements and use the Law of Detachment or the Law of Syllogism to find a valid conclusion to an argument.  The two page worksheet contains fourteen...