Instructions
Head to the schoolhouse and write down the number etched into the wall.
Go back to the Gingerbread House. Once inside, click on the table to open a hidden area and add the potholder to your inventory.
Head to the Toy Store and use the potholder on the stove. Using the stove controls, match up the temperature with the number you wrote down from the schoolhouse.
Write down the pattern that appears at the top of the stove.
Return to the schoolhouse and draw the pattern from the stove on the wall. You can now access the schoolhouse basement.