First Math Slide and See Adding

ISBN 9780794539535 Age 3 year and up Binding Board book Size 7 3/4 x 8 1/4 Pages 10 Author Hannah Watson   A brand new series of interactive board books to make it easier for children to learn math skills. Slide the simple mechanisms and see the picture change to show the result of the additions and subtractions, making math visual, concrete, and easy to understand!Series: First Math Slide and See BooksSlide the simple mechanisms and see the picture change to show the result of equation, making math visual, concrete, and easy to understand.