Beginning ➖ Subtraction (Montessori 🔢 Math 🎥 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:

DSC_0095

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).

DSC_0095

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. 


🔢Math Simple ➕Addition and ➖Subtractions with LEGO

Recently, 👦🏼Adrian really got into LEGO building: he builds every day, and he would build the entire day (if I let him😉). So, we are LEGO ❤️️fanatics here! This Snow ❄️ Resort Kit (buy here) is actually the 1st LEGO Friends set 👦🏼Adrian built completely independently (without 👧🏻Julia's help and he loved the process!) Aside from allowing a child express creativity and ingenuity, there are so many things you can do with LEGO! 

DSC_0002

Once Adrian was finished, to add a twist to a traditional LEGO building, I wrote down some equations and asked Adrian to reproduce them with LEGO pieces.

DSC_0022

The  "worksheet" (download here) had several basic addition and subtraction equations on it. Adrian would have to build the equation on the board and solve it. 
DSC_0005-2For symbols, I used flat "bumpless" LEGO pieces and simply drew the sign on them with a Sharpie (permanent marker).
DSC_0005-2To provide a control of error, I made sure that each equation sing had the same color, adding a sensorial aspect to this activity. Also, Adrian can sensorily feel little bumps on the pieces while counting to self-correct, triggering tactile learning!

For our Math work: see here a 🎥 video- post "Beginning ➖ Subtraction (Montessori 🔢 Math 🎥Lesson)." For Addition Math work, see here "Montessori Math Simple ➕ Addition using Marble-Counters" and here a 🎥 video-post "➕Addition Strip Board (Montessori 🔢 Math 🎥 Lesson)." Also see here an extension to Montessori Strip Board: "➕Addition Strip Board Making 🔟’s (Montessori 🔢 Math 🎥 Lesson)."

For Holiday posts, here  "🦃Thanksgiving 🌽Inspired DIY Simple ➖ Subtraction Math Lesson."

For more on LEGO, see:

  • here "Learning Fractions with LEGO"
  • here "Julia's Christmas Gift: LEGO Creator Expert Santa's Workshop"
  • here "LEGO Juniors Demolition Site Building Kit"
  • here "Dropper Writing Letter M with LEGO (Language 101 🎥 Series 🎇 Curriculum)"
  • here "LEGO - the Best Investment in a Toy"
  • here "Julia's 7th Birthday Gifts: LEGO Friends"

 Do your children like LEGO? Leave a comment! I love hearing from you!