Vintage 1974 Know It All Individualized Learning Math Addition Subtraction MINT

Oh my... back to my childhood. Why does it seem like things were so simple and different :) These things were so amazing in learning, enjoy!!! The box has a bit of wear from age and storage but no tears or anything. The product inside is in MINT condition, not sure it was even used and all of the disks are there. Happy learning! This vintage 1974 Know It All study guide is a must-have for anyone interested in individualized learning and mathematics. With a publication year of 1977 and a series of 2, this plastic case with 12 discs is a rare find for collectors and enthusiasts alike. The guide is authored by Educational Insights and covers a range of subjects, including English language teaching and mathematics.The guide is perfect for beginners and includes features such as a plastic case with discs. It is a great addition to any collection of study guides and textbooks, and it was made in the United States. Don't miss out on the opportunity to own a piece of educational history.