Deductive Reasoning Teacher Resources

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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.
Getting young mathematicians to persevere when solving problems is an important skill. Here is one way to introduce deductive logic puzzles at the beginning of the year and add a creative dimension that they can use throughout the course. 
Third graders apply deductive reasoning and make predictions. In this language arts lesson, 3rd graders discuss questions and use deductive reasoning to make a prediction. Students look for patterns and prior knowledge to make predictions.
Use the 20 Questions game to practice math vocabulary and number properties! Project a hundreds chart and hand one out to learners. Ideally, give them counters (beans would work well) to mark off the chart so you can play multiple times. You choose a number, and they ask yes or no questions to figure it out in less than 20 questions. As they get answers, they use deductive reasoning to omit numbers. Your class could also do this in pairs.
Young scholars 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.
Rumours of illness, poisoning, and madness - a ship disappears without a trace! Read this interactive science story and use deductive reasoning skills to solve a mystery. This engaging resource gives science stars a chance to practice problem solving. Since the possible causes of death in the story are all diseases, this would be ideal as an enrichment activity for your biology course, particularly when studying infectious disease, bacteria, or viruses.
High schoolers define direct, indirect and transitive reasoning, give examples of direct, indirect and transitive reasoning, and identify valid and invalid arguments.
In this deductive reasoning instructional activity, students answer 5 questions about a Venn diagram.  Students use deductive reasoning to answer each question.
Sherlock Holmes had fantastic skills of observation. Your super sleuths will examine the pattern, rhythm, texture, and color of a painting to uncover the symbolism beneath. A great lesson, that incorporates observation, art analysis, critical and deductive reasoning. 
Students determine the story elements of typical mystery stories including characters and plot structure. They look at vocabulary that is common to mystery stories before reading and responding to mystery chapter books. Working in guided reading groups, they act as detectives to complete case files while paying attention to details in readings.
Students listen to a verbal explanation of the function of deductive reasoning and problem solving. They read one of Donald Sobol's 'Two-Minute Mysteries' and complete a worksheet requiring them to write out the information which is prior knowledge and the informational clues provided by the culprit.
In this logic puzzle, students examine clues from a mystery.  They use logical reasoning to determine how to escape from a villian.  This one-page worksheet contains 1 logic puzzle.
In this deductive reasoning worksheet, students answer five multiple choice questions related to the law of syllogism.  The solutions are available by clicking on the "check it" button found on the bottom of the page.
For this bridge-crossing worksheet, students read a word problem.  They use logic and deductive reasoning to determine the correct combination for two men to cross a bridge at the same time to get the anticipated results.  This one-page worksheet contains 1 story problem.  The answer is provided at the bottom of the page.
Young scholars solve sentences using deductive reasoning. In this geometry lesson plan, students are asked to translate sentences using logic and deductive reasoning.
Fifth graders research math basic skills assignments on various bookmarked websites. They work in teams to complete the project, print out the assignments, and place them in folders. They can also create their own math games utilizing ideas from math Web sites.
Abby, Rosita, and Zoe help a camel find his proper habitat. A voice tells the girls to find the habitat. Then the girls use clues and deductive reasoning to figure out where a camel lives. Great for problem solving and building critical-Language Arts.
Here is a game you can play with your preschoolers to help them identify sounds and build their deductive reasoning. Big Bird gives clues for each of three different items. Children need to guess what each item is.
In this logic worksheet, students read an "invitation to a mystery ball" and then use math clues to determine the date of the ball, the 5-digit house number where the ball will be held, and who is hosting.
Students show how to solve subtraction problems using manipulative materials and deductive reasoning. They construct subtraction sentences using information from the activity.

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