Monday February 23 2009

Subject: Earth Space Science

State Standard ES. 1.28 Discuss geologic evidence, including fossils and radioactive dating, in relation to Earth’s past.

10 Minutes: Go over homework from last week: end of section assessment questions 1-6. Makes sure the students understand why each question was answered that way.

Moving on: Chapter 21.2 page 557-561 in text. Relative-Age Dating of Rocks.

Big Ideas to cover

1. uniformitarianism - processes that occur today have been going on since the Earth formed
2. relative age dating rocks - inacurate process done by comparing one rock layer to another
3. original horizontality - the rocks were originally put down flat
   
4. superposition - the oldest rock layers are at the bottom and younger ones are at the top
   
5. cross-cutting relationships - invasive rock layers are younger than what they interrupt
   
6. constantly changing Earth makes it hard to find undisturbed rock to date an age of
7. unconformity - gaps in the rock record
   
8. correlation - matching areas or rock from one area to another
   

15 - 20 Minutes: As a class, we are going to read together the first three paragraphs of the section and pull out the important information in cornell notes style on the overhead. I will have the students take turns reading or I will help them by reading.

10 Minutes: Then I will have them read the next two paragraphs themselves (4-5 minutes each) and pull out 5 facts each for the cornell notes on the overhead.

10 Minutes: When they are done, we will practice writing together what the cornell notes look like and practice SUMMARIZING because my students don't know how.

The independent practice is the section assessment on page 561 #1-6.