You do not need special curriculum or supplies to teach at home. Most of the time the supplies you use are (or can be) common household supplies. I have used (and am still using) a curriculum I bought at Wal-mart called Preschool-K Everything for early learning published by McGraw-Hill Children's Publishing for less than five dollars. It has all the concepts that preschoolers need to learn. I have adapted the book for my own children's needs and added materials as I have needed to but it has been a great jumpstart for me as I begin the homeschooling journey. I use a lot of manipulatives when I teach to give the children a concrete understanding of what they are learning. I have used blocks, buttons, candy, stickers, dried beans, etc. I have spent very little money buying supplies for my children aside from markers, paints, paper, glue, scissors, crayons, pencils, tape, etc.