Deductive Reasoning Lesson.pptx

DEDUCTIVE REASONING RECAP: We have been discussing the importance of good observation skills. Observation skills are important for forensic scientists. The brain is not designed to keep ALL of the information that bombards us on a daily basis, so it is very selective. What are some...

DEDUCTIVE REASONING RECAP: We have been discussing the importance of good observation skills. Observation skills are important for forensic scientists. The brain is not designed to keep ALL of the information that bombards us on a daily basis, so it is very selective. What are some strategies that can be used to keep the brain from losing information? WHAT MAKES A GOOD OBSERVER? 1. Make a conscious effort to examine the environment. -Use 5 senses 2. Observe everything...SLOWLY! -Scan scene 3. Make connections to observations. -Ex. Relate observations to prior knowledge 4. Don't jump to conclusions! 5. Photograph & take notes! ONCE OBSERVATIONS ARE MADE, A FORENSIC INVESTIGATOR CAN USE DEDUCTIVE REASONING TO SOLVE THE CRIME. Deductive Reasoning: deriving consequences from facts using a series of logical steps QUICK ACTIVITY: Can I have 3 volunteers? Task: These three containers contain parts of an event that humans do daily. Can you guess the event by using your observations skills to deduce the answer? Container #3: Container #2: Container #1: Observe by Observe by Observe by touching smelling listening ONLY! ONLY! ONLY! 10 seconds 10 seconds 10 seconds DEDUCTIVE REASONING: Deductive reasoning is a simple form of arriving at a conclusion by joining two or more pieces of information. Deductive reasoning refers to rational thinking, which involves generating a hypothesis and examining all possible outcomes before settling for a specific reasonable Premise #1 conclusion. Premise #2 Premise #3 Conclusion A bloody knife is The blood The knife found The on the knife was used to next to a woman matched kill the deceased was the victim’s woman. woman. stabbed. DNA. Deductive reasoning may not be the most accurate way of solving a problem because we all know that assumptions can be wrong. PRACTICING DEDUCTIVE REASONING SKILLS: Throughout forensic science, you will rely on your observation & deductive reasoning skills. To practice sharpening these skills, we will play a game. Make it a point to think like a C.S.I.! Game Rules: You will be broken into groups of 4-5. This will be your team. The goal of this game is to use the clues revealed to you to answer the question posed to you at the beginning of the game. Your teacher will provide you will an introductory clue. Each group will then take turns asking a question, and the teacher will provide you with one of the following answers: YES, NO, I DON’T KNOW, RE-PHRASE THE QUESTION, OR THAT’S NOT IMPORTANT. When you are ready to solve the case, you can choose to SOLVE instead of asking a question. You must guess 100% correctly, or you are disqualified, and the game keeps going. When it’s your turn, you will only have 60 seconds to ask your question or solve the case. After 60 seconds, you will be skipped. You may take notes during the game. After 5 minutes of playing, your teacher will give you a BONUS CLUE. After 10 minutes of playing, your teacher will provide you with another BONUS CLUE. There are only 2 bonus clues per game.