Description Textbook Highlights 1. A Textbook Faithful to the Curriculum This textbook actively embodies the intent of the 2015 revised curriculum to nurture creative and convergent thinkers, while also reducing overall learning burden. 2. A Textbook Packed with Diverse Learning Materials It includes a variety of hands-on learning materials such as number cards, stickers, shape pieces, nets (unfolded 3D shapes), transparent film, and mirrors, sparking students' interest and curiosity in learning.