Thank you, Lara. Hello, everyone. Thank you all for joining us to our first quarter 2024 earnings call. Before we begin, I would like to note that the financial information and non-GAAP numbers in this release are presented on a continuing operation basis and in RMB unless otherwise stated.
Let me start with our latest business update. In the first quarter, we continued to strengthen our core SaaS teaching and learning businesses through enhancing high-quality products and services solutions. Expanding sales and networks and sales -- services into new opportunity areas. Our primary business achieved robust growth with a notable top line growth during the quarter. We have also been diversifying the performance of our services to cover a wider customer base and expand the range of services to increase revenue from both new and existing projects. The wider customer base has also allowed us greater flexibility and resilience during this environment.
During this quarter, our teaching and learning SaaS business from a district level project, exhibit consistent progress. We continue to generate revenues through successful delivery and new project winnings. The total value of the district level projects we have won so far have already exceeded [ RMB 40 million ]. Meanwhile, we have also made significant strides in securing orders from both public and private schools on a school-by-school basis. Such purchases have a much quicker decision process and are much easier and flexible to secure the required funding. These type of projects are also recurring in nature and are likely to expand into other individual schools in surrounding areas.
Project with this group's supply typically follow subscription models with semiannual or annual renewal. From some of the early projects that have already experienced renewal process, we have seen revenue retention rate exceeding 100% with additional classes and students as well as functions being subscribed at the time of renewal. By now, we have already established a strategic partnership with more than 120 school groups, including 7 of which are private operated school groups. As of today, our smart pen have been used on a daily basis of more than 600 schools by nearly 300,000 students and counting. Such active [ right away ] use has led to more than 23 million homeworks, assignments finished on our system, which creates valuable insights in the in-school teaching and learning scenarios and student [indiscernible] needs and weaknesses, which will in turn help us further improve our products and services and allow us to offer additional services that specifically cater intersection.
Recognized as 1 of the top providers of teaching and learning systems, applying to the latest smart pen technologies in China, we are leading the industry with advancements in product innovation, product efficiency and service quality. The accumulation of rich customer data propels rapid product and service upgrades that's fostering a strong positive feedback.
In terms of product and services offering, we enhanced our personalized products, offering precise student [indiscernible] based on comprehensive and scientific data collection from all teaching and learning scenarios. This integration facilities effective teaching, improves cost and quality, and assess teacher in providing favor instructions. We have been continuing developing and refining our teaching and learning product services to further enhance teachers teaching and students learning efficiency.
By leveraging the one teacher and one learning platform, feature like random student selection, timers, comparative analysis of students work and visualization of students writing and digital technology seamlessly integrating, [ pass some ] instructions has significantly enhanced the teaching and learning senses for both educators and students. As schools gradually adopting regular use of smart pens into their teaching and learning scenarios, new applications are being explored and attempted by themselves. Such new exploration have further contributed to our future addition and improvement.
We are also making continuous investments in our sales network. We have been building both our own sales team as well as working with external agents to cover a wider customer base. During this quarter, we further bolstered our direct sales capabilities to optimize customer relationship management and talent selection process, which significantly enhance our brand influence through standardized sales practice.
Operational efficiency indicators, such as service personnel effectiveness and active user data are continuously improving as our customer base expands. Looking to data, we will continue to innovate and improve our products and services to meet the evolving user needs of digital learning experiences, providing high-quality educational products and services that enhance effectiveness for a wider audience.
Now I will turn the call over to Lara to walk you through our latest financial performance. Thank you.