Reflection: Intervention and Extension Compost Bins Investigation - Section 3: Explore


Overall, I think that this lesson was a very powerful lesson as students were able to truly grasp the concept of decomposing and the role that decomposers and scavengers have within ecosystems.

However, over the next week, our compost bins took a turn for the worse...

At first, we forgot to water the bins regularly (which is a testimony to how many other activities are happening in our classroom). The bins dry up a bit and several earthworms die. This makes the compost bins stink really badly! 

Then, we watered the bins too much. After returning from a long weekend, mold covered the tops of each bin. The remaining earthworms swelled up with water and died. I didn't realize that compost bins and earthworms were so difficult to care for! 

At this point, I decided to dispose the bins as I have some students with asthma and I didn't want these moldy bins to affect their health! 

However, looking back on this activity, I could have taken advantage of the situation and provided students with an extension to the lesson by asking students to design a solution.

This would have provided students with an authentic situation to "think like a scientist!" For example, students could have engineered a compost bin with better drainage or designed a solution to a compost bin drying up too quickly. 

  Lesson Learned!
  Intervention and Extension: Lesson Learned!
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Compost Bins Investigation

Unit 2: Ecosystems
Lesson 11 of 28

Objective: SWBAT explain the role of decomposers and scavengers in ecosystems.

Big Idea: In this lesson, students will be creating three compost bins to investigate which scavenger (earthworm, darkling beetle, or a roly-poly) will decompose organic materials the fastest.

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4 teachers like this lesson
Science, global warming, abiotic factors, ecosystem, investigation, scavengers, decomposition, Composting, biotic
  70 minutes
students composting
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