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Adrian 42 months (3.5 years old) MATH 🔢

➕Addition Strip Board Making 🔟’s (Montessori 🔢 Math 🎥 Lesson)

This lesson is an extension to a lesson on “Addition Strip Board” where a child uses a traditional Montessori material: Addition Strip Board (buy here). Once the child is comfortable with adding numbers using the board and has a strong understanding of quantity to the numeral concept, this is a great way to introduce a child to combining numbers to make new numbers.

In this video, Adrian is making 10’s.

To combine numbers making 10’s, a child would start at the top (show your child how to bring the strips right to the line). A child would position the blue strip on the left, and then count the squares to see what number is needed to make a ten. A child would then pick the corresponding red strip. 9+1=10; 8 +2 =10; 7 + 3=10 etc.

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Here, Adrian was making 10’s, but a child can “make” any number, and the bigger the number is, the more combinations there will be available. For example, number ten yields the largest number conditions. 

As always, a child would put the material back on the shelf. The best way to put strips back in a box is to start with the longest strip because there is only one way all the strips will fit into the box.

Read here post “Addition Strip Board (Montessori Math Lesson).”

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