Double Digit Group Division

Age
7.

Materials

 * Stamp Game
 * Work Cards

Presentation

 * 1) Given a division problem, the child prepares the stamps and the skittles.
 * 2) Since we want to do a group division, we put the skittles together in a group.
 * 3) Directress asks: "How many groups of 26 can be made from this number?"
 * 4) The child places two tens and six units in a row, continuing his distribution by making all horizontal rows of 26 in a column.
 * 5) The stamps are always placed in hierarchic order.
 * 6) Here, the skittles serve only as a reminder of the number in the group.
 * 7) This time we will first make groups only of tens.
 * 8) Groups are made of two tens and lain out in rows.
 * 9) Directress asks: "How many groups of ten did I make?"
 * 10) "So that each group has 26, I must make the same number of groups of units".
 * 11) Groups of six units are made in rows that line up with the groups of ten, yet in a separate column.
 * 12) When the child finds that more units are needed, one group of tens is returned to the dish so that they may be changed.
 * 13) Directress asks: "How many groups of tens do I have ? 4. How many groups of units? 4 is our answer".

Purpose

 * To learn the concept of group division.
 * To continue towards further abstraction in division.