Five pages built on the ten board and the golden beads. On the board the panels show 10, 20, 30 and on to 90, and the unit cards 1 to 9 slide over the 0: the 4 card over the 0 of 30 makes 34. Beside each number the child lays the quantity, golden ten bars and unit beads. Page 1 shows the beads: the child counts the ten bars ("ten, twenty, thirty"), then the units, and writes the number on the board, the tens on the panel and the units on the card. Page 2 is tens only: count the ten bars and write the panel's number, then fill in the missing numbers under a stair of ten bars from 10 to 90. Page 3 turns it round: the board shows a number, and the child writes how many ten bars and how many units it takes, with 60 as 6 ten bars and no units. Page 4 has the child build each number on paper, a line for each ten bar and a dot for each unit, the way children record golden bead work. Page 5 compares two numbers with >, < and =, from beads or from the board.
Use the pages after the child has worked with the real ten board and golden beads: counted the ten bars by tens, laid them beside each panel and slid the cards over the 0 while naming the numbers ("thirty-four is three tens and four units"). Keep the board, the cards and a tray of ten bars and units at the table, so a child who is unsure can build the number and check. On page 5, have the child build both numbers and compare the ten bars first, then the units.
Make ten bars from craft sticks, or by threading ten dry pasta tubes on a pipe cleaner, and use loose buttons for units. Build a number, count the tens by tens and then the units, and write it. Then write a number and let your child build it, drawing a line for each ten and a dot for each unit on paper.
This pack supports the following Common Core State Standards for Mathematics:
© Copyright 2010. National Governors Association Center for Best Practices and Council of Chief State School Officers. All rights reserved.
The Montessori ten board, where a unit card slides over the 0 of 10, 20, 30 and on to 90 to make every number to 99, with golden ten bars and unit beads laid beside it. Children count ten bars and units to write a number, count by tens, read a number as ten bars and units, sketch it with a line for each ten and a dot for each unit, and compare two numbers.
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