This is a math early education toy for children over 3 years old. It is developed from the equivalent replacement in the story Cao Chong Weighs the Elephant. Each small elephant's weight is marked with 5g, 10g, 20g, 30g, 40g, 50g, and 100g according to weight. Weigh according to the hull sinking, children can clearly feel the weight of different scales and enhance their sensitivity to weight and numbers, to strengthen children's careful observation of small objects around them.

Shanghai Art and Design Academy is the only independent art and Design Vocational College in Shanghai. It is the only higher vocational college in Shanghai to undertake the pilot of the reform of the national education system. New entrepreneurial experience in Colleges and universities.Shanghai Art and Design Academy has gradually formed the development thought of "inheriting tradition, creating the contemporary era and expanding the future", and has accumulated a strong comprehensive strength for running schools.