Array Beginning Subtraction Montessori Math
Adrian 42 months (3.5 years old) MATH ๐Ÿ”ข

Beginning โž– Subtraction (Montessori ๐Ÿ”ข Math ๐ŸŽฅ Lesson)

This DIY lesson on Beginning Subtraction uses materials you probably have at your home. The lesson should be presented to a child who already understands the concept of numbers at least till ten and the concept of addition.

First, you need to make "Number-Jars" – see how below:

For your "Number-Jars" you can use spice jars, jam jars or any other shallow dish for each number (lids are not necessary). So, for example, the "Number -4-Jar" must have the proper number of the following materials since the purpose of every Montessori lesson is to have a control of error:

  • equations (see picture above) – so the "Number -4" Jar will have four equations (unless you would like to add an equation "minus zero"); you can use colored cardstock (buy here) and yourself write down the equations and then cut them out;  we are using wooden Montessori equations (similar here); alternately you can use these wooden numbers to "make" an equation;
  • separate answers for each equation;
  • the same amount of marbles as that Number-Jar, so in "Number -4" Jar, you will have four marbles;
  • a tray (buy here).


For numbers 1-jar and 2-jar, I am using shallow dishes since number "1-jar" will have just one equation with one answer and one marble, and number "2-jar" will have two equations, two answers, and two marbles.

DSC_0095Adrian (3.5 years old) is working with the "Number-5-Jar."

DSC_0095The equations should be positioned on one side of the work and the answers on the other side. 

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