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| Our Anchor Chart to help us think about Main Ideas |
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| Student samples from some beginning work with main ideas and supporting details |
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| Data from our test trials with our super cool Kelvin catapults, made with visitor Gaius Hennin |
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| One of our Kelvin catapults, built by second graders and ready for action |
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| Students found these supplies at work stations to build the catapults with their team |
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| Gaius Hennin of Shelter Institute talks to the entire second grade about engineering and design and the science behind a catapult |
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| Mr. Hennin starts us off with step-by-step directions so we can get building |
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| Two builders hard at work |
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| Sometimes Mr. Hennin swooped in to help a team problem-solve and revise our building |
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| Mr. Hennin helping us cut the pegs to add to our catapults |
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| This group tried out the new catapult in the hall so there'd be plenty of space to get some air! |
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| Post-building, two and a half hours of focused hard work. Thank you, Mr. Hennin! |
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| We took a trip to the cafeteria to try out our Kelvin catapults. A half hour of flying ping pong balls and collecting data. |
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| Our tool-kit measuring tapes got put to good use. We had to do a lot of addition and careful measuring. These ping pong balls went quite the distance! |
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