Quick Write: Over the next few weeks you will be geological detectives! ~What kind of work does a detective do? ~What kind of detective work might geologists do? 9/22/08 Observation & Inference Lesson #13 Announcements: Scientist choice due tomorrow Wednesday Quiz

Diagrams Diagram due Friday Use the ABCDs Accurate Big Colorful Detailed

This rock… 9/22/08 Observation & Inference Lesson #13

Observation… Inference… Write in your own words. 9/22/08 Observation & Inference Lesson #13

Observation… Inference… Now discuss with your group. 9/22/08 Observation & Inference Lesson #13

Observation: Getting information directly with your senses. Inference: A logical conclusion based on observation and past experience. 9/22/08 Observation & Inference Lesson #13

Observation and inference story… 9/22/08 Observation & Inference Lesson #13

Envelope Inferences! 9/22/08 Observation & Inference Lesson #13

Envelope Inferences! a.What has happened to this envelope? b.What are the clues or evidence that these events have happened? Record in a chart: Claim (inference)Evidence (observation) 9/22/08 Observation & Inference Lesson #13

The envelope’s construction Where the envelope started Who mailed it Is the sender male or female How was it sealed How it traveled What stops it made Who handled it Who received it How was it opened What do you know about the people involved? Possible questions/topics to explore:

What questions can not be answered from your evidence?

Observation: Getting information directly with your senses. Inference: A logical conclusion based on observation and past experience. Classify the following as observations or inferences: 1.There were two stamps on the envelope 2.The envelope was mailed on September 9, The person who sealed the envelope was a woman 4.The letter was opened with a letter opener 5.The ink on the address is black 6.An address is printed in the upper left-hand corner 7.The letter was mailed from the address in the upper left- hand corner 9/22/08 Observation & Inference Lesson #13 O I I I I O O

Envelope Sequence a.Choose 5 or 6 events about one envelope. b.Put the events in order with evidence. Record in a chart: Sequence of EventsEvidence 9/22/08 Observation & Inference Lesson #13

The envelope’s construction Where the envelope started Who mailed it Is the sender male or female How was it sealed How it traveled What stops it made Who handled it Who received it How was it opened What do you know about the people involved? Possible questions/topics to explore: