Concrete Foundations for Ratio/Proportion

There are a number of Common Core standards that address Ratios.  There are no traditional Montessori materials designed to address ratios, but they can (and should) be introduced concretely before diving into the abstract explanations that are offered in most textbooks.  Fear not!  This can be done with traditional Montessori materials used in non-traditional ways, supplemented by other readily available items like checkers.

This collection of 6 lessons (58 pages) introduces principles of Ratios required by common core standards in a manner that is aligned with the Montessori Method.  Once concepts are introduced and practiced concretely, students can then apply those concepts to real-life experiences, reasoning out the process, rule, or algorithm. Each lesson has a Follow-up activity and a Control of Error.

PLEASE NOTE:  This content is also included in The Marvels of Montessori Math.  If you already own Marvels, you already have this content!

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