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Cindy Kern created the group NGSS – Crosscutting Concepts 5 years, 9 months ago
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Cindy Kern joined the group K12 Teachers 5 years, 9 months ago
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Cindy Kern became a registered member 5 years, 9 months ago
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Cindy Kern joined the group Vacation Explorers 5 years, 9 months ago
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Cindy Kern joined the group Paleo Pics 5 years, 9 months ago
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Cindy Kern joined the group Education and Outreach 5 years, 9 months ago
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