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Montessori Math Number Rod Addition

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This post include a lesson on Montessori Math Number Rod Addition. Montessori Small Number Rods are a favorite of preschoolers because the material is familiar and they get to do something different with it. This lesson comes at the end of a child’s Early Childhood Montessori life. The Montessori Math Lesson with the Number Rods is within the area of “Math Facts” or “Memorization”.

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Number Rod Addition
Invite child to do something new with the number rods.

Montessori Math Number Rod Addition

Small Number Rods

Ask him to spread a mat and build the stair with the number rods.

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Separate the ten rod from the others: “Do you remember what this is? Yes, it is ten. Let’s see if there are other ways to make ten.”

Addition with Number Rods

Take the nine rod and place it against the ten rod: “What do we need to make this rod ten?” Allow the child the time to discover the answer.

Number Rod Addition

Place the one rod in position and note that 9 + 1 = 10.

Number Rod Addition Sequence

Have the child write this answer in his equation booklet.

Number Rod Addition with 10

See if the child can find a way to make ten with the eight rod.

Number Rod Addition with 8 Rod

  • Continue in this manner until he has discovered all possible ways of making ten.
  • Next, ask the child explore to find all the ways of making 9. Get him started if necessary by placing the eight rod against the 9 rod and asking what he needs to make it nine.
  • Over time give the child challenge cards that request he make combinations of eight, seven, six, five and so on.  Make sure he records his work in a “Ways of making…” booklet.

Related Resource: Check out this AMAZING Preschool Math Bundle!

Related Montessori Math Lessons:

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Marnie Craycroft

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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