The Dot Game: Dynamic multiplication (with change)
How this activity is presented
The directress begins the activity by reading through the operation with the child that is written in expanded notation on the dot board, for example: (1334 x 3) She reminds him that they need to add 1334 3 times.
The directress draws four dots in green in the unit collum. She then draws another four dots in the unit column and then another four as they are taking the number three times. She ensures to draw a line after each set of four dots. The directress starts to add up the dots.
She stops on reaching 10 dots and crosses out the whole row, she places a green dot at the bottom left of the unit column to record the row. She continues counting the remaining units (2) and records the answer in green in the unit column on the dot paper.
The directress places one dot in blue in the first square of the 10’s column to show how they carried 10 units over from the previous column. She encourages the child to continue drawing and counting the tens, ensuring to change hierarchies when necessary. She reminds him to draw a line after each section of three and to record the answer in the correct coloured marker in the correct column.
The child is encouraged to do the same with the hundreds and thousands. The directress reads through the operation and the answer with the child once it is complete.
The Dot Game: Dynamic multiplication
Looking for more Montessori activities?
Here is a list of all the Montessori Maths activities including Early Maths, Introduction to the Decimal System, Seguin Boards, The Hundred Board, The Short Bead Stair, Bead Chains, The Snake Game, Group Operations, The Large Number Rods, Recording with the Small Number Rods, The Short Bead Stair, The Strip Boards, The Boards, The Stamp Game, The Abacus, The Dot Game, and Fractions. Just click on the page you want to learn about to go there.
Early Maths
Introduction to the Decimal System
The Short Bead Stair
Seguin Boards
The Hundred Board
Bead Chains
The Snake Game
Group Operations
Large Number Rods
Recording with the Small Number Rods
The Short Bead Stair
The Strip Boards
The Boards
The Stamp Game
The Abacus
Operations with the Abacus: Static addition (without change)
Operations with the Abacus: Static multiplication (without change)
Operations with the Abacus: Static subtraction (without change)