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Rhode island Mathematics teachers Association

     RIMTA's Elementary Math Leaders Group is a network of elementary mathematics leaders from throughout Rhode Island who share resources and collaborate to solve the problems being faced in mathematics instruction.  Recently, the group developed materials to support individual teachers and professional development in Visual Models Across the Common Core in the hopes of pooling their efforts to create resources that could be used back in their own districts and beyond.  Each resource looks a little different in order to meet a variety of needs.  Please feel free to link to or adapt these resources to your own needs, but please reference RIMTA's Elementary Math Leaders Group Your questions or feedback are welcomed or let us know if you are interested in joining the group through

 Number Sense

Tools, resources, activities and strategies for teaching early numeracy. Covers topics such as counting, subitizing, as well as research and instructional practice. Number Sense Materials
 Place Value
This document contains visual models from the place value progressions document and bulleted explanations of the standards.  The models are taken directly from the progressions document and clarified in the presentation. Place Value Materials
 Tape Diagrams
Using Tape Diagrams for Problem Solving K-5: A Professional Development presentation for groups of teachers or self-study using the presenter notes for guidance and learning. May be best used in 2 sessions. Tape Diagram Resources
 Number Lines
  Number Line Resources
 A handbook that describes a progression of strategies and algorithms that may be used to develop a conceptual understanding of computation.  Descriptions, examples and milestones could be a helpful reference for teacher or parent support. Algorithm Handbook and Resources
 Fractions A series of four 60 - 90 minute presentations for interactive professional development with handouts and facilitator notes.  May be used as self-study, also. Includes additional suggestions for further exploration of each concept. Tasks are appropriate for use with students, also. Fraction PD Presentations and Support Materials

RIMTA is a partner affiliate of the National Council of Teachers of Mathematics (NCTM).

RIMTA is a 501(c)3 non-profit organization. 

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