Additional Details ------------------------------ Product description: Buy Writer Macy Flashcards and build your child’s creativity, mental maths and application. These game-based flashcards have encoded answers that can only be revealed by the Magic GlassTM (included). You have to see it to believe it! Writer Macy Flashcards are aligned to the learning objectives of all educational boards and perfect for mastering concepts of 4th standard Geometry and Patterns.