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CK-12 Foundation
Ck 12: Interactive Middle School Math 7 for Ccss
A complete CCSS Grade 7 Mathematics course that includes interactives in every lesson, plus videos, hands-on activities, and questions with immediate feedback. Every lesson also has specifically chosen 'Related Modalities' that teach the...
Other
Ohio Department of Education: Models for Dividing Fractions [Pdf]
This resource consists of a detailed, hands-on lesson plan for dividing fractions using manipulatives such as fraction bars.