Hello, you mean where to see the national double-mentioned mathematics? Tencent video dual-mention mathematics for all. National Double Teaching Mathematics is a mathematics education program officially launched by Tencent Video. Mainly for primary school students, an expert team composed of senior education experts and math teachers. Every Monday to Friday at 7 pm, each program lasts for one hour. Each program will lead children to learn mathematics knowledge in simple terms and improve their mathematics learning ability with different themes and wonderful videos.