Class may pause.
Learning does not.
停课不停学，
数学不断档。
停课不停学，数学不断档。 Class may pause. Learning does not.
Travel, competitions, moves, schedule clashes — none of them should break a student's math streak. NGU Math keeps skills warm during any break and brings students back resume-ready, not restarting from zero. 旅行、比赛、搬家、时间冲突——这些都不该让数学学习断掉。NGU Math 在任何暂停期间保持技能不退步，让学生回归时接续就绪，而不是从零开始。
Currently in early access. An educational learning tool — a support for teachers and curriculum, not a replacement.目前为早期体验阶段。这是一款教育学习工具，用于辅助老师与课程，而非替代。
One continuous line, whatever life brings无论生活怎么变，学习是一条连续的线
NGU Math moves between three modes so a break becomes a gentle slowdown instead of a hard stop.NGU Math 在三种模式间平滑切换，让"暂停"变成温和的减速，而不是硬性中断。
Active learning主动学习
Full-pace progress: daily core tasks, skill drills, and regular check-ins. The Continuity Score tracks momentum and keeps it high.全速推进：每日核心任务、技能训练、定期评测。连续性分数追踪学习势头并保持在高位。
Pause, without stopping停课不停学
Travel, a competition, family time — life doesn't pause learning. A lighter maintenance plan keeps the mathematical mind active and prevents a break in the chain.旅行、比赛、家庭事务——生活不会为学习按下暂停键。更轻量的维持计划让数学思维保持活跃，防止链条断裂。
Resume ready接续就绪
As the return date nears, NGU analyzes any gaps formed during the pause and builds a personalized re-entry plan — so students continue, not restart.临近回归日期，NGU 分析暂停期间形成的薄弱点，生成个性化的接续计划——让学生续接学习，而非重来。
From pause to resume, step by step从暂停到接续，一步一步
Active learning主动学习
Daily core tasks, quizzes, and review keep the Continuity Score high.每日核心任务、测验与复习，让连续性分数保持在高位。
A pause is triggered触发暂停
A trip or event comes up. A parent or teacher submits an NGU pause request with dates and reason.出现旅行或活动，家长或老师提交带日期与原因的 NGU 停课申请。
NGU mode activates启动 NGU 模式
The system generates a light plan focused on skill maintenance for the pause window.系统为暂停窗口生成以技能维持为核心的轻量计划。
The student stays warm保持热度
Short, focused tasks keep the mathematical mind active and the score in the maintainable zone.短小而聚焦的任务让数学思维保持活跃，分数停留在可维持区间。
Gap analysis薄弱点分析
As the return date approaches, NGU analyzes any skill gaps formed during the pause.临近回归日期，NGU 分析暂停期间形成的薄弱点。
Resume ready接续就绪
Teachers get a Resume Panel with a recommended restart node, weak skills to review, and a re-entry plan.老师获得"接续面板"：推荐的重启节点、需复习的薄弱技能，以及回归计划。
Continuity Score
A single 0–100 number for how continuous a student's learning is — computed from real activity, not guesswork.用一个 0–100 的数字衡量学习的连续程度——由真实学习活动计算得出，而非凭空估计。
How the score is built分数如何构成
Sample value, for illustration only示例数值，仅用于说明
Built to keep learning honest and continuous为诚实且连续的学习而造
Every capability below is a real part of the product, not a promise.下列每项能力都是产品的真实组成部分，而非承诺。
Adaptive practice loop自适应做题闭环
Retrieval practice with answers graded locally — never by the model. Miss a problem and progressive hints scaffold the method. Difficulty adapts toward a ~70–80% success band.检索式练习，答案在本地判定——绝不交给模型判分。答错时逐级提示，搭建解题方法。难度自适应，瞄准约 70–80% 的正确率区间。
Elo mastery graphElo 掌握度图谱
Practice moves a measured, concept-level mastery rating for a signed-in student — so "doing problems → mastery going up" is something you can actually see.对已登录的学生，做题会驱动可量化的概念级掌握度评分——让"做题 → 掌握度提升"真正看得见。
Spaced-repetition review间隔重复复习
An FSRS-based review schedule resurfaces earlier skills at the right moment, so a pause doesn't quietly erase what was already learned.基于 FSRS 的复习排程，在恰当时机重现已学技能，让暂停不会悄悄抹去已经学会的内容。
AI math tutorAI 数学辅导
A topic-aware tutor across pre-algebra, Algebra 1 & 2, geometry, and SAT math — for explanation and method, while answer-checking stays deterministic.覆盖预备代数、代数 1/2、几何与 SAT 数学的按主题辅导——负责讲解与方法，而答案校验保持确定性判定。
Course map & progress课程地图与进度
Students see the path ahead, their weekly tasks, and an error-review page that turns mistakes into targeted practice.学生可看到前方路径、每周任务，以及把错误转化为针对性练习的错题复习页。
Teacher Resume Panel老师接续面板
After a pause, teachers get a recommended restart node, the weak skills to review first, and a re-entry plan — plus a roster view of every student's continuity status.暂停结束后，老师获得推荐的重启节点、需优先复习的薄弱技能与回归计划——并可在名册中查看每位学生的连续性状态。
Students, teachers, and parents — on one continuous line学生、老师、家长——在同一条连续的线上
Students学生
Keep learning math wherever you are. Track your own progress and hold your momentum through any break.无论身在何处都能继续学数学。追踪自己的进度，在任何暂停中守住势头。
Teachers老师
See every student's continuity status at a glance, approve pause requests, and get a ready-made resume plan when they return.一眼掌握每位学生的连续性状态，审批停课申请，学生回归时获得现成的接续计划。
Parents家长
Weekly reports show how your child is doing, and requesting an NGU pause for a trip or event takes a minute.每周报告让你了解孩子的状态，为旅行或活动申请 NGU 暂停只需一分钟。
Never give up. Never break the chain.永不放弃。链条不断。
NGU Math is in early access. Tell us about your student or classroom and we'll set up a plan together.NGU Math 正处于早期体验阶段。告诉我们你的孩子或班级情况，我们一起制定计划。
Request early access申请早期体验