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Montessori Math Introduction to Numerals of the Decimal System

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intro_numerals_mainIntroduction to Numerals of the Decimal System is a Montessori Math Early Childhood lesson. Pretty straightforward, the goal of this lesson is to introduce the numerals of the decimal system. We’ve moved from the Overview, to quantity, and now to numerals. There are two new pieces within this lesson, however. The child is introduced to the Montessori color coding of the numerals and is introduced to zero as a place holder.

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Introduction to Numerals of the Decimal System

Presentation 

intro_dec_one_ten

“This is one. This is how we write one. This is ten. This is how we write ten.” Continue with 3 Period Lesson.

intro_num_hund_thousand

Introduce the hundred and the thousand in the same manner.

intro_dec_magic

Show the child the magic trick.

Variations

  • “What is missing?” game
  • Turn cards over. Ask the child to identify the numerals from the size of the card.
  • Place cards randomly. Ask the child to order first by looking, then by touching only.

 

Extensions

  • Child makes own set of cards
  • Child colors in numerals
  • Child creates own version of presentation tray

 

Resources

About Marnie Craycroft

Marnie hails from Maine where she spent summers buried in sand and winters buried in snow. She is the daughter of a nearly four decade veteran of the public school systems. Teaching has always been a part of her life. She founded Carrots Are Orange in 2010.

Carrots Are Orange is a Montessori learning and living website for parents and teachers.

Marnie graduated from Wesleyan University in 1999 with a BA in Economics. She spent nearly a decade working in investment management. In 2006, she earned her MA in business from the University of Washington’s Foster School of Business.

Marnie moved to the west coast in 1999 and currently lives in Boulder with her husband and three sons. She is Montessori trained. Her work has been featured on Apartment Therapy, Buzzfeed, PBS Kids, BabyCenter, the Melissa & Doug blog, Huffington Post, and WhattoExpect.com. Besides writing, passions include running (usually after her three sons), photography, and outdoor adventures.

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