This is an introduction lesson on Decimal System. After presenting the Concrete Montessori materials such as the Golden Beads and other manipulatives for teaching the decimal system (units, tens, hundreds, and thousands). You can use a worksheet effectively to reinforce and extend children's understanding. Here’s how you can structure and use the worksheet. - Review of Concrete Experience: Begin by briefly reviewing the hands-on activities with the Golden Beads and other materials. Ensure that c