Presentation on theme: "Earth’s History in Geologic Time"— Presentation transcript:
1 Earth’s History in Geologic Time By Dan Cyre, Robert Daub, and Beth Lang
2 Enduring Understandings Geologic time is not uniform.Earth’s history is preserved in rock.
3 Essential QuestionHow is the Earth different today than in the past?
4 Standards Addressed:GR understands that earth processes observed today (including movement of lithospheric plates and changes in atmospheric conditions) are similar to those that occurred in the past; earth history is also influenced by occasional catastrophes, such as the impact of a comet or asteroidGR understands geological time is used to understand the earth’s past
5 Sequence Pre-test Essential Question Whiteboard Discussion Geologic Time Scale ActivityFossils ActivityFossils WorksheetIntroduction to Relative and Absolute Dating
6 Sequence Cont.Relative Dating WorksheetReviewPost-test
7 Time Line (50 min. class)Day 1: Pre-test, Bell Work (Whiteboard Essential Question, Geologic Time Scale Activity ResearchDay 2: Construct Geologic Time Scale, Whiteboard Discussion, Earth Year CalendarDay 3: Fossil Inquiry: samples, Interactive Fossil Museum, Fossils WS
8 Time Line (cont.)Day 4: Fossils Whiteboard Discussion, Introduce Relative and Absolute Dating, Relative Dating WorksheetDay 5: Relative Dating Whiteboard Discussion, Test ReviewDay 6: Post-test
9 Bell Work Introduce students to Essential Question Have students whiteboard answersShare with classCheck for background knowledge
10 Geologic Time Scale Activity Students research Web sites to find characteristics specific to geologic time periods.Scale is discussed with students—relationship with millionStudents will construct a time scale on adding machine tape.
11 Geologic Time Scale Activity (cont.) Students will whiteboard findings from activity—refer back to bell work whiteboard discussionExtension Activity: Students will relate findings from geologic time scale to project the timeline to an earth calendar year. (Jan. 1—Earth formed, Dec :59:58.47-Establishment of US)
12 Fossils ActivityStudents examine fossil samples—discuss the type of organisms the fossils represent and conditions of formationFurther inquiry with Interactive Fossil Museum
13 Fossils WorksheetStudents read through material to discover formation of fossils, specific fossil types, and fossil recordLab groups will each take a section of questions and whiteboard answersClass discussion using whiteboard answers
14 Introduction to Relative and Absolute Dating Read through “How Old is that Rock?”Check for understanding—ask students to give examples of relative and absolute age; know term half-life
15 Relative Dating Worksheet Students will read through Relative Dating selection; class discussion for key science concepts (law of superposition, extrusion, intrusion, unconformity, etc.)Students will work on questions in lab groups; whiteboard responseClass discussion with whiteboard answers
16 Test Review Crossword for vocabulary terms Classroom Performance System quiz format for other questions