Reflection: Connection to Prior Knowledge Geologic Timeline - Pre-Requisite - Section 3: Hook


Deciding the amount of background information to include in lessons can be tricky. If you spend too much time teaching background information you don't get to the new content. On the other hand, using background information is a vital step in connecting students to content in a memorable fashion.

In this lesson, I had to make a decision about how much background info to include. It is not a part of my current standards that students understand how fossils are made. On the other hand, fossils were a part of the 6th grade curriculum AND having an understanding of fossils helps students understand time periods and fossil evidence.  

In this situation I decided that a little information about fossils in the hook through a video would give the students enough background to connect to but not enough to take the focus off geologic time.

  Background information
  Connection to Prior Knowledge: Background information
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Geologic Timeline - Pre-Requisite

Unit 14: History of Life: Timelines
Lesson 2 of 5

Objective: Students will be able to understand the differences in numbers like 1000, 1,000,000 and 1,000,000,000.

Big Idea: Geologic timelines can give us information on fossils made over millions of years.

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  42 minutes
geologic timeline 2
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