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 law of syllogism/detachment worksheet, students solve 10 short answer problems. Students combine two or three if-then statements using the law of syllogism or law of detachment.

For this angles, lines and figures review worksheet, 10th graders solve and complete 33 standardized multiple choice problems. First, they use the Segment Addition Postulate to solve for a variable given an equation for each line. Then,...

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...

Your class may believe that geometry is a trial, but they don't know how right they are. A thorough math lesson combines the laws of logic with the laws of geometry. As high schoolers review the work of historical mathematicians and...

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 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 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...

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...