Grammar Smash
Pick a grammar point, pick a level. Students get a fresh drill instantly — no worksheet, no prep, no repeating the same examples.
Open App →Whole Class
- 1Project the exercise on the board for whole-class drilling — Grammar Smash is a single-screen, teacher-led activity, not an individual device exercise.
- 2For Fill-in-the-Blank exercises, reveal the verb hint in parentheses only after students have attempted the answer — the hint is support, not a crutch.
- 3Run multiple exercise types in sequence: start with Fill-in-the-Blank to introduce the form, then Multiple Choice to test discrimination, then Correct-or-Wrong to consolidate recognition.
- 4Use the explanation field after each exercise — read it aloud or have students read it silently. The explanation is the most pedagogically dense part of every item.
The Teaching Logic Behind Grammar Smash
Grammar Smash generates grammar exercises against a deterministic constraint system built from CEFR guidelines. The teacher selects a grammar focus (e.g. 'present perfect', 'second conditional') and a level, and the AI generates an exercise where every aspect — vocabulary, sentence length, verb hints, distractor plausibility — is controlled by level-specific rules.
Three exercise types are available. Fill-in-the-Blank requires students to produce the correct form in a gap (with a verb hint in parentheses at A1–B1). Multiple Choice presents four options including common error distractors — ideal for whole-class hands-up or mini-whiteboard discrimination work. Correct or Wrong presents a complete sentence that may or may not contain an error: students call it, then explain why. Correct or Wrong and Multiple Choice are the most effective formats for whole-class engagement because every student commits to an answer simultaneously.
A custom validation function — `validateGrammarExerciseForFocus` — ensures every generated exercise actually tests the declared grammar point. This makes Grammar Smash the most precisely targeted grammar activity in the ENK suite: the teacher specifies exactly what gets drilled, and the AI delivers exactly that.
Why It Works
Focus on Form improves accuracy without sacrificing fluency
Long (1991) argues that focus on form — brief, reactive attention to grammar within meaningful communication — produces better outcomes than isolated grammar drills. Grammar Smash supports this by embedding grammar targets in contextualised sentences with meaningful content rather than abstract pattern drills.
Distractor quality determines test diagnostic value
Bachman & Palmer (1996) show that well-designed distractors in Multiple Choice tasks reveal specific error types, not random guessing. Grammar Smash distractors are constructed to test the most common errors for each grammar point, making wrong answers diagnostically informative rather than random.
CEFR levels define grammar scope, not just vocabulary
The CEFR descriptor system specifies grammatical accuracy expectations for each level. Grammar Smash's DOE constraint block injects these level-specific grammar rules directly into the prompt, ensuring exercises stay within the productive range of the target level — not too easy to bore, not too hard to confuse.
Step-by-Step in Class
Select grammar focus, level, and custom topic
Pick a grammar topic from the list (Present Tenses, Conditionals, Passive Voice, etc.) and set the CEFR level. For precision alignment with your lesson, use the Custom Grammar Focus field to type any structure not in the list — 'reported questions', 'present perfect continuous', 'mixed conditionals'. Use the Vocabulary Theme field to anchor all examples to your coursebook unit or specialist domain: type 'travel and tourism', 'IELTS health and medicine', 'aviation terminology', or any phrase that describes the lexical context you want.
Choose exercise type — Multiple Choice or Correct or Wrong for whole-class
Select Multiple Choice for discrimination practice: four options including common error distractors, all students respond simultaneously. Select Correct or Wrong for error recognition: the sentence is either right or wrong — students commit, then justify. Use Fill-in-the-Blank for production practice at the start of a sequence. Sequencing all three — production → discrimination → error recognition — builds mastery progressively within a single grammar segment.
Students attempt — then read the explanation
Give students time to attempt the exercise individually or in pairs. Reveal the correct answer and, crucially, read the explanation field aloud. The explanation articulates the rule in clear terms — it is the pedagogical payload of each exercise.
Generate more — instantly
Grammar Smash deduplicates across a session's vocabulary domain, so each new exercise uses fresh content words while drilling the same grammar focus. Generate 5–8 exercises per focus within a 20-minute grammar segment.
How to Set It Up for Different Levels
Generates Fill-in-the-Blank exercises where students must choose between present perfect and past simple. Verb hints appear in parentheses. Vocabulary uses everyday B1 themes.
B1 learners systematically confuse these two tenses because their L1 often uses a single past form. Fill-in-the-Blank with verb hints forces them to reason about time reference without the distractor support that might allow surface-level pattern matching.
Generates Multiple Choice exercises with four options testing common second conditional errors (wrong tense in the if-clause, wrong modal in the result clause, confusion with first conditional).
B2 learners know the conditional rule but make form errors under pressure. Multiple Choice distractors that replicate common errors — would in the if-clause, past simple in the result — force conscious rule application rather than intuitive guessing.
Generates Correct-or-Wrong exercises with sentences that may or may not contain an inversion error. Students must identify the error and supply the correction.
C1 learners encounter inversions in sophisticated reading but rarely need to produce them accurately under time pressure. Error-detection exercises build the metalinguistic awareness needed to both produce and self-correct these complex structures.
Ways to Extend the Game
Grammar Auction
Generate 8 Correct-or-Wrong sentences. Teams bid on each one — higher bids earn more points if correct but lose more if wrong. Teams must decide how confident they are before committing. Reviews grammar with risk-based engagement.
Error Hospital
Generate 5 incorrect sentences (Correct-or-Wrong type, all incorrect). Students 'treat' each error by identifying the problem and writing the corrected version. Compare corrections across pairs.
Rule Articulation Challenge
After each exercise, before showing the explanation, ask students to explain the grammar rule in their own words. Compare their explanation to the app's explanation. The articulation attempt deepens metalinguistic awareness even when wrong.
Cross-Level Comparison
Generate the same grammar focus at two adjacent levels (e.g. B2 and C1). Project both exercises. Students identify what changes between levels — vocabulary range, sentence complexity, distractor nuance — developing metacognitive awareness of their own progression.
Pair It With
Sentence Lab
Sentence Lab extends Grammar Smash from controlled exercise to open production: give students a vocabulary set that naturally invites the grammar target just drilled, then ask them to build a sentence using it.
New Word Order
New Word Order reinforces the specific grammar structure from Grammar Smash through reconstruction: generate scrambled sentences that must be restored to the correct order, targeting the same form in a different task type.
Dialogue Factory
Dialogue Factory embeds the grammar focus from Grammar Smash in authentic conversation — gaps in the dialogue can target the same structure, moving students from isolated exercise to contextualised use.