Connecting the Lithosphere and the Biosphere

Resource for Grades 5-8

Connecting the Lithosphere and the Biosphere

Media Type:
Video

Running Time: 1m 02s
Size: 3.3 MB

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Source: WGBH Educational Foundation


Resource Produced by:

WGBH Educational Foundation

Collection Developed by:

WGBH Educational Foundation

Collection Funded by:


In this video segment from Teaching Earth and Space Science, middle school teacher Karen Spaulding discusses the reasons why she likes teaching about relationships between science topics by making connections within the Earth system. She describes how students may not naturally make a bridge between topics and explains why she tries to link two ideas together explicitly, such as relating Earth events and the fossil record. Spaulding also describes how building these connections helps integrate students’ experience of the sciences across the grades.

open Background Essay

Lack of connections in a student’s education is a common phenomenon in schools. Students may forget that certain topics were taught earlier in their education even if those topics were covered in a recent unit. Moreover, the student may not make connections between related topics and concepts in the same discipline—especially if the teacher never made them herself.

Such continuity of knowledge and skills in education is therefore a problem—and no less a dilemma in the sciences than in any other discipline. To avoid this, educators must build connections between topics and concepts.

For example, take Karen Spaulding’s approach to Earth science discussed in this video. Spaulding talks about creating links among topics within the sciences, and within her teaching of the Earth System in particular—such as between the fossil record and current Earth events.

This “systems approach” has a cohering effect on isolated topics. The approach has the ability to integrate ideas and subjects that may have been taught in a fragmented away across a sequence of units. As a teaching method, a holistic systems approach can help overcome how learning is broken up over the course of the school year.


open Discussion Questions

You may find it useful to watch this video with a group of your colleagues and then discuss it together.
  • It’s very likely that when you studied Earth science in school, it was not presented using this systems-based approach. Can you think of one or two ways in which learning Earth science through a systems approach might be different from the way you learned Earth science?
  • Are there differences between this systems-based approach and the way your classroom textbook approaches Earth science?

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