Third Grade Science Field Trip at School IV


In some jurisdictions, third grade learns about weather in one of the science units. The curriculum expectations include an engineering component that is a shoe-in for outdoor hands-on experimenting: "Make a claim about the merit of a design solution that reduces the impacts of a weather-related hazard (eg. flooding)."

I made sure that a lot of found materials were available: branches, bark, rocks, mud; the only other material we made available was twine and rubber mallets.

In a ditch leading from a downspout which fills with rushing water during a rainfall, groups of four designed and worked on a structure that would still be standing after dealing with flooding and possibly wind.


 
 
I told students that each person in the group had a specific role: project leader, supply leader, note taker,  and problem solver/peace keeper, and I explained that each student had responsibilities besides their role.  They could also choose to switch roles.  

First, we briefly brainstormed about the problem the problem of flooding for buildings, and about solutions that would allow a building stay standing during flooding.  Each group took some pre-briefing notes under the headings 'Problem' and 'Possible Solutions'.  After that, I decided that planning on paper before the build was not productive or helpful, and I will not do bother with that again.

It was during the build that the problem-solving happened.  With trial-and-error, students discovered the importance of rocks and especially dams that might divert water around the structure.
 
Students spent several wonderful science periods on the builds, and I am pretty sure that they will go down as some of the highlights of their school year.  The students worked well together, they were very invested and enthusiastic, and during the weekend after they finished their builds, there was a crazy rainstorm. On Monday morning, before we did anything else, we went outside to check out the structures.  All of them had withstood the wind and the flooding!
 
We surrounded the area of the build with yellow caution tape attached to wooden stakes.  I also sent an email to all school staff requesting them to keep students away from that part of the school grounds during their outdoor classes as well as recess. 
 
Each group took some debriefing notes on their Possible Solutions after their builds had been tried and tested.  Their notes were part of my assessment of this curriculum expectation.

I made a slideshow of effective shelters that people and animals have built using natural materials, and I wondered if I should show it to students before or after their builds.  I decided on the latter, so that they would problem-solve without any preconceived ideas, but also not be discouraged if they could not build the same kinds of structures. I don't know what is best; I could try showing it before their builds next year to give students ideas.

This activity was evidence again of the benefits of outdoor learning.  Students who often act bored or negative were at their very best, even taking the lead in positive ways.  There was no end to their enthusiasm or focus.  While they were engaged in what probably felt like playing, they were actually engaged in a good deal of experiential learning.




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