After reflecting on our success and areas in need of improvement, we revisited our rafts this week to make some modifications. We also made sure we had lots more marbles to use for testing (281 to be exact!). Many of us made significant changes to our rafts - you can see our specific modifications and reflections in Fresh Grade as we add them throughout the week. This whole project was a great success and we really used our critical and creative thinking competencies to improve our designs through knowledge of density and surface tension.
Last week, we had a blast in our Creation Lab challenge! On Monday, we explored the concept of density. It is a quantitative property of matter that relates to an object's mass and volume. We worked in small groups to test various objects' density by predicting and observing whether the objects would sink or float. With this background knowledge established, the real fun came on Wednesday. We had 15 minutes to design a raft that could hold as many marbles as possible. Then, we gathered our materials and collaborated to build our rafts. Testing of materials was allowed during the design process, but once we had committed to a blueprint, we had to stick to it. Then, we tested our rafts! Every group's raft floated and was able to hold some marbles. This shows we had a lot of success in the challenge! Some of us knew immediately what we wanted to change. However, we had 66 marbles, and there were several groups that held all of them with no issues. STEM learning at its best, this was so much fun! After reflecting on our success and areas in need of improvement, we revisited our rafts this week to make some modifications. We also made sure we had lots more marbles to use for testing (281 to be exact!). Many of us made significant changes to our rafts - you can see our specific modifications and reflections in Fresh Grade as we add them throughout the week. This whole project was a great success and we really used our critical and creative thinking competencies to improve our designs through knowledge of density and surface tension.
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AuthorWe are a class of Grade 6/7 students in Surrey, BC, Canada. This blog is one way we will share our learning with the world! Archives
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