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MIKE SPRINGER/Staff photo
John Madama, k-5th grade science specialist with Gloucester Public Schools, explains a moving model of the Solar System to a group of fifth graders during a special robotics event Tuesday at East Gloucester Elementary School. From left are Madama, Tessa Bushfield, Dal Dyer, Taylor Frost, Laura Ryan, Emma Duckworth and Ella deGaspe Beaubien.

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