Grammar that grows with the learner — from five to nineteen.

Yes — the full academy is free forever. No hidden costs, no premium tiers, no paywalls. Every one of the 125,000+ questions, all 30 chapters, and all four age levels are available at no cost. No credit card, ever.

A 30-chapter English grammar course for learners aged 5–19. It covers every grammar topic from basic nouns and verbs to rhetorical argument, across four age levels: Discover (5–8), Practice (8–12), Craft (12–16), and Master (16–19). Each chapter carries over 4,000 questions mapped to CBSE, ICSE, Cambridge, IB, SAT, and IELTS.

LLOS.ai was built by Pawan Nayar, an education researcher and practitioner. The pedagogy, voice, and design are original — not adapted from a textbook or curriculum framework. The goal: one lifelong English companion from first sentences to university argument.

30 chapters, from Chapter 1 (Nouns) to Chapter 30 (Exam Readiness). They are grouped into six parts: Words & Meaning, Structure & Patterns, Sentences in Motion, Punctuation & Conventions, Craft & Style, and Writer’s Command.

Nouns, verbs, adjectives, adverbs, pronouns, sentence structure, phrases, clauses, sentence types, subject-verb agreement, tense, pronoun agreement, parallel structure, commas, apostrophes, capitalisation, hyphens, conciseness, transitions, register, proofreading, sentence variety, punctuation for effect, figurative language, argument, voice, formal writing, rhetoric, editing, wordplay, and exam grammar.

Three things set it apart. First, a single concept is taught at four different depths — the same chapter teaches nouns to a 6-year-old and a 17-year-old at entirely different complexity. Second, every question is mapped to real curriculum standards (CBSE, IGCSE, IB, SAT, IELTS) so practice is never generic. Third, 125,000+ questions — not a quiz bank, a complete training set for every standard and level.

Both — with explicit coverage of the differences. Spelling variants (colour/color, programme/program), punctuation conventions (serial comma, single vs double quotes), and register differences are covered as topics. Learners preparing for British-based exams see British conventions; SAT-prep learners see American conventions.

No account, no login. Open a chapter URL and start learning. Progress is saved in your browser’s local storage — no server-side account needed. Progress is device-specific; starting on a new device means a fresh slate until account support ships.

An internet connection is needed to first load a chapter. Once loaded, most interactions work without network access. A dedicated offline mode (service worker + cache) is on the roadmap.

Not yet. The Grammar Academy is a web app that works on any device — phone, tablet, or desktop — without installation. It is designed mobile-first and verified at 360, 390, and 412 px wide. A native app is on the roadmap.

Ages 5–19. The Discover level targets ages 5–8, Practice 8–12, Craft 12–16, and Master 16–19. Learners older than 19 or adult English learners often find Craft and Master appropriate for their needs.

125,000+ questions across all 30 chapters, all 4 levels, and 6 question types (MCQ, tap-the-word, drag-and-drop, fill-in-the-blank, cloze, and context challenge). Each question carries curriculum mapping, a difficulty tag, and wrong-answer feedback.

No. LLOS.ai is independent. The content is mapped to board curricula for the learner’s convenience, but LLOS.ai is not endorsed by, affiliated with, or licensed through CBSE, ICSE, Cambridge, or IB.

No. The Academy covers CBSE, ICSE, and Indian state boards, but equally covers Cambridge (Primary, Lower Secondary, IGCSE), IB (PYP, MYP, Diploma), SAT, IELTS, and TOEFL. Learners in the UK, US, Singapore, UAE, and across South Asia use it.

The same grammar concept is taught at four different depths. Discover (5–8) uses concrete examples and simple sentences. Practice (8–12) adds rule precision and accuracy drills. Craft (12–16) builds intentional writing — how grammar shapes meaning. Master (16–19) covers rhetorical argument, register, formal writing, and exam-level inference. Switch any time; progress tracks separately per level.

Discover (ages 5–8) teaches learners to spot grammar in everyday life — naming things, actions, descriptions, positions. By the end of Discover, learners can identify nouns, verbs, basic adjectives, and simple sentence patterns in familiar contexts.

Practice (ages 8–12) focuses on accuracy — tense agreement, subject-verb agreement, pronoun reference, comma use, and apostrophes. By the end of Practice, learners can write correctly under time pressure and stop making the tricky mistakes that follow them for years.

Craft (ages 12–16) focuses on intentional writing — how grammar choices shape meaning. Learners work with clause structure, rhetorical patterns, transitions, register, conciseness, and style. A Craft-level learner understands why one sentence is better than another, not just whether it is correct.

Master (ages 16–19) covers writing like a thinker — formal argument, rhetorical devices, editing judgment, academic and professional register, figurative language, and punctuation for rhetorical effect. By the end of Master, learners can diagnose and revise any piece of writing, not just correct it.

Start with Practice (8–12). If the first chapter feels too easy, move up to Craft. If it feels difficult, drop down to Discover. The age ranges are a starting point, not a requirement — the self-assessment quiz on the homepage helps learners find their entry point in under a minute.

Yes. Level labels are guides, not walls. A 16-year-old who missed foundational grammar or whose first language is not English may find Discover genuinely useful for a quick orientation before moving into Craft or Master. There is no system restriction — switch freely.

Yes. The level selector is always accessible. Switching shows the same chapter at a different depth; your progress in each level is tracked independently, so switching never erases what you’ve done.

Yes. Completing Chapter 3 in Discover does not count as Chapter 3 complete in Practice. Each level is a full curriculum of its own — a learner can legitimately complete all four levels of all 30 chapters.

Start at Chapter 1 and go in order at your chosen level. The chapters are sequenced so each builds on the previous. For exam-focused learners, specific chapters can be prioritised — IELTS Writing prep benefits most from Chapters 13, 14, 17, 19, and 24.

Typically 3–5 hours of learning spread across multiple sessions, at any single level. A chapter has roughly 4 levels × 10–15 sections, with 5–10 minutes per section. Most learners work through a chapter over a week at a comfortable pace, or in a single long session for exam-sprint prep.

You can jump directly to any chapter. The Academy does not gate chapters. The recommended sequence exists for full-curriculum learners; for targeted exam prep, open any chapter directly.

CBSE, ICSE, Cambridge (Primary 0058, Lower Secondary, IGCSE 0500/0522), IB (PYP, MYP, DP), Indian state boards, SAT, ACT English, IELTS Academic (Writing Tasks 1 & 2), TOEFL iBT, and SOF International English Olympiad (IEO). Every question carries its board/exam mapping in metadata.

Yes. All CBSE grammar topics from Class 1 to Class 12 are covered — tenses, subject-verb agreement, reported speech, active/passive voice, determiners, prepositions, conjunctions, sentence transformation, and error correction, aligned to NCERT syllabus expectations.

Yes. ICSE grammar at Classes 7–10 is fully covered, including sentence rewriting (reported speech, active/passive, transformation), error correction, and paragraph-level editing — the specific formats that appear in ICSE literature and language papers.

Yes. Cambridge IGCSE First Language (0500) and as-a-Second-Language (0522) grammar requirements are covered across Chapters 1–28. The Craft and Master levels most directly align with the Cambridge 14+ cohort, covering summary writing accuracy, directed writing, and proofreading tasks from Paper 2.

Yes. Stages 1–6 of Cambridge Primary English (Framework 0058) align with the Discover and lower Practice levels. Grammar identification, simple sentence construction, punctuation basics, and age-appropriate vocabulary all feature in the relevant chapters.

Yes. IB PYP English aligns with Discover and Practice. IB MYP (Years 1–5) aligns with Practice and Craft. IB Diploma Language A and Language B grammar and style requirements align with Craft and Master — particularly Chapters 17 (Conciseness), 18 (Transitions), 24 (Argument), 27 (Rhetoric), and 28 (Editing).

Yes. The SAT Writing and Language section tests grammar, usage, and expression of ideas — all covered at the Master level. Key chapters for SAT prep: Sentence Structure (5), Subject-Verb Agreement (9), Tense (10), Pronoun Agreement (11), Parallel Structure (12), Commas (13), Conciseness (17), and Transitions (18).

Yes. IELTS Band 7+ grammar accuracy is specifically targeted. Critical chapters: Commas (13), Apostrophes (14), Conciseness (17), Transitions (18), Register (19), and Argument (24). The Master level also covers formal register and hedging language — both examined in IELTS Task 2.

Yes. TOEFL Integrated and Independent writing tasks require sentence-level grammar accuracy, logical transitions, and register control — all covered at Craft and Master levels. Chapter 18 (Transitions) and Chapter 17 (Conciseness) are particularly aligned with TOEFL scoring rubrics.

Yes. IEO grammar questions (logical sequence, error identification, fill-in-the-blank, sentence formation) are covered across Chapters 1–15. Most direct alignment is at Practice level for Classes 2–8 and Craft level for Classes 9–12.

Yes. Each question carries: board/exam tags, grade-level mapping, difficulty tier, topic tag, and wrong-answer feedback. This infrastructure is built; filterable practice by board/class/exam is on the near-term roadmap.

For most learners under 16, yes — the 30 chapters cover every topic a grammar textbook covers, with more practice variation and adaptive feedback. For board exams where prescribed textbooks carry specific passages (like CBSE’s Moments reader), LLOS.ai is the best grammar practice companion but not a replacement for the prescribed text.

Yes — Maharashtra, Karnataka, Tamil Nadu, West Bengal, Rajasthan, and other major state boards. State board grammar requirements overlap with CBSE at 80–90%, so the CBSE-tagged questions cover the large majority of state board needs.

Yes. For General English sections in CLAT, SSC CGL, banking PO exams, and management entrance exams (GMAT verbal, GRE verbal), the Craft and Master levels cover the underlying grammar fluency these tests assume. Chapters 17–30 are the most directly relevant.

Each section takes 5–10 minutes — designed for focused microlearning. A chapter has roughly 50 sections across all 4 levels, so a learner can dip in for one short session or work through an entire level in a single long sitting.

Six formats: (1) Multiple-choice — one correct answer, detailed wrong-answer feedback; (2) Tap-the-word — tap incorrect or correct words in a sentence; (3) Drag-and-drop — sort words or phrases into categories or correct positions; (4) Fill-in-the-blank — type or select the right word; (5) Cloze — complete paragraphs with the correct grammatical form; (6) Context challenge — identify or correct errors in a full passage.

Yes. Every wrong answer comes with a specific explanation — not a generic “Incorrect.” The explanation names the rule, explains why the chosen answer fails, and shows what makes the correct answer right. Wrong-answer feedback is one of the most built-out parts of the question bank.

Spaced recall revisits a topic after a gap — at the point where memory of it has started to fade. Each chapter in LLOS.ai includes a “Quick recall” section that surfaces earlier concepts at timed intervals, reinforcing retention without reteaching. The spacing is built into the chapter sequence; no setup needed.

Yes — LLOS.ai has a built-in read-aloud feature (text-to-speech). Learners can choose Indian, American, or British accent in Settings. This is especially useful for younger Discover-level learners and for non-native English speakers practising listening alongside reading.

Yes — fully responsive and verified at 360, 390, and 412 px for small Android phones, across all tablet sizes, and on desktop up to 1600 px wide. No installation needed; the web app works in any modern browser (Chrome, Safari, Firefox, Edge). The interface is touch-optimised — drag-and-drop works on touchscreens.

Not in the current release. LLOS.ai’s core belief is that active practice builds grammar faster than passive watching. The Academy uses explanatory text, worked examples, and immediate practice. Explainer videos as a supplementary layer are on the roadmap.

Progress is saved in your browser (localStorage). The chapter map shows completed sections. The Academy tracks correct-answer rate per section, not just “done vs not done” — a section marked complete has been passed at an acceptable accuracy threshold. No account is needed.

Yes — any section can be revisited and retaken unlimited times. The “Quick recall” button on each chapter’s home screen also surfaces recently completed material for a rapid review session. Revisiting does not reset progress.

The chapter completion screen shows your score across all sections, highlights weak areas, and suggests which sections to revisit. It also shows the next chapter and gives a direct link to continue.

Questions vary across five independent axes: grammatical concept (30 topics × sub-topics), level (Discover/Practice/Craft/Master), format (6 question types), context (everyday, academic, literary, and technical registers), and difficulty (recognition → application → analysis). The combination means even within a single chapter and level, a learner sees genuine variation.

Yes. Discover examples use animals, family, school, and everyday objects. Practice examples introduce news-like contexts and social scenarios. Craft examples use literary sentences and published writing. Master examples draw from essays, speeches, and academic writing. Vocabulary, sentence length, and topic are all level-calibrated.

A live S-V-O (Subject–Verb–Object) animation that cycles through real sentence examples — the three grammar building blocks that form every English sentence. It shows that grammar is a visible, present reality in all language, not just a set of rules to memorise.

The fastest route: take the “Try a quick quiz” section on the homepage, which gives a level check in 5 questions. Within a chapter, the section-completion panel shows which sections had below-threshold accuracy — those are the weak spots. A full weak-area analytics dashboard is on the roadmap.

Yes. Each chapter is a single URL that can be shared, projected, or assigned. The drag-and-drop and tap-the-word formats work on an interactive whiteboard. Teachers can assign specific chapter + section combinations to correspond with what is being taught in class.

Not yet. A teacher dashboard — assign chapters to a class, see individual progress, export reports — is on the roadmap. Email the team (contact details in the footer) to be first in line for early access.

Copy the chapter URL and share it directly — no account needed on either end. For sharing a specific level, add ?band=D (Discover), ?band=P (Practice), ?band=C (Craft), or ?band=M (Master) to the URL.

Yes — the 30-chapter sequence is a complete grammar curriculum that can replace a grammar textbook for homeschool learners. The curriculum mapping (CBSE, Cambridge, IB) means a homeschooling parent can verify that their child’s grammar practice meets the standard for their target board or exam.

Several features help: clean legible fonts, read-aloud (all text can be spoken by the built-in TTS), short section lengths (5–10 minutes), and visual question formats (tap-the-word, drag-and-drop) that reduce reading burden. A full accessibility review is ongoing.

Yes — and this is a common use case. The tutor identifies the chapter and section needed, assigns it as self-study practice, and uses the completion/accuracy data to guide the next session. The clear chapter-and-section structure maps directly onto lesson planning.

Not currently. Individual sections can be printed from the browser (File → Print). Printable reference cards and question sets per chapter are on the roadmap, specifically for classroom and tutoring use.

Yes. LLOS.ai has no social features, no comments, no chat, no user-generated content, and no advertising. No personal data is required to use the Academy. The site is educational-only and content is strictly curriculum-aligned.

No. Progress data is stored in the learner’s own browser (localStorage) — not on LLOS.ai’s servers. LLOS.ai does not collect names, emails, or any personally identifiable information from learners. No tracking or advertising cookies are set.

Yes. Walk through the first three sections of each chapter with your child and observe which question types cause hesitation. The section-completion panel shows accuracy per section — sections below threshold are flagged for revisit, giving a clear picture of which concepts need reinforcement.

Yes — one of the largest user groups. The Discover and Practice levels are specifically designed so a learner whose first language is not English can build grammar from scratch. The read-aloud feature, explicit rule explanations, and high-frequency vocabulary in early chapters all support non-native learners.

Currently progress is device-level (one browser profile = one progress record). For separate tracking, each child should use their own browser profile (e.g. Chrome profiles) or separate devices. Account-based multi-user support is on the roadmap.

LLOS.ai is free for all users including schools and institutions — no license required. Schools wanting institutional features (single sign-on, class management, analytics) can contact the team to discuss the roadmap and priority access.

Use the email address shown in the footer. For feature requests, curriculum suggestions, or to report a question-bank error, use the same contact. The team reads every message.