Open Study Contributor

Unabhängige AEVO-Karteikarten zu Planung, Einstellung, Durchführung und Abschluss der Ausbildung – mit Fällen, Begriffen und klaren Abgrenzungen.

• 150 kort
• Deutsch — German

Practice anatomical planes and common joint movements with 65 English flashcards, specified movement scenarios, and short explanations of easily confused terms.

• 65 kort
• English

Review all 8 AP Biology units with original flashcards for concepts, pathways, experimental design, data interpretation, and FRQ reasoning.

• 540 kort
• English

Review all eight AP Calculus AB units with formula conditions, theorem hypotheses, notation, graph interpretation, and concept cards.

• 288 kort
• English

Review all nine AP Chemistry units with 450 cards covering concepts, models, equations, calculation setup, and laboratory reasoning.

• 450 kort
• English

A 400-card AP Physics 1 review of concepts, formulas, graphs, experiments, and reasoning across all eight course units.

• 400 kort
• English

Review all five AP® Psychology units with 705 independently written cards covering concepts, scenarios, research methods, data interpretation, and evidence-based reasoning.

• 705 kort
• English

Review all five revised AP Statistics units with 250 original cards on data, study design, probability, inference, and regression.

• 250 kort
• English

A 520-card APUSH review of chronology, evidence, causation, comparison, continuity, change, and theme links across all nine periods.

• 520 kort
• English

Review 220 original ASVAB flashcards covering vocabulary, math formulas and setup patterns, science, electronics, auto and shop knowledge, mechanics, and bounded spatial concepts.

• 220 kort
• English

Practice average speed with 42 solved cards on equal-time and equal-distance legs, stops, speed versus velocity, and feasible or impossible target averages.

• 42 kort
• English

Review SAA-C03 architecture choices through 300 original cards on security, resilience, performance, and cost trade-offs.

• 300 kort
• English

Practice 48 original Bayes theorem flashcards: build source-and-evidence weights, normalize across all sources, repair base-rate mistakes, and check sequential updates.

• 48 kort
• English

हिंदी में स्वतंत्र फ्लैशकार्ड: भारतीय संविधान के महत्वपूर्ण अनुच्छेद, भाग, अनुसूचियाँ, अधिकार, कर्तव्य और संस्थाएँ।

• 141 kort
• हिन्दी — Hindi

Study all 1,440 questions from Bulgaria's first-time Category B theory bank through English prompts, ordered answer choices and short explanations. Includes official external links for 58 video questions.

• 1.440 kort
• English

独立筛选的 300 个 CET-4 范围核心词目：用简短英文提示回忆中文核心义，并通过常用搭配、与目标义一致的词族线索和原创双语例句巩固理解。

• 300 kort
• 简体中文 — Chinese (Simplified)

用约480张原创简体中文闪卡复习 CFA Level III 共同核心与 Portfolio Management 路径，覆盖资产配置、组合构建、业绩评估、衍生品、伦理、权益、固定收益与交易执行。

• 480 kort
• 简体中文 — Chinese (Simplified)

Practice major and minor keys, spelled key signatures, relative-key pairs, accidental order, and neighboring circle positions.

• 87 kort
• English

Practice coding interview patterns with 210 English flashcards on problem signals, invariants, complexity, edge cases, and choosing between approaches. Language-agnostic DSA review to pair with hands-on coding.

• 210 kort
• English

Practice 46 original English cards on coding and template DNA strands: four RNA-conversion cases, strand choice, two reverse mappings, repairs, and evidence limits.

• 46 kort
• English

Practice 46 original comma splice and fused sentence flashcards: diagnose boundaries, repair sentences under clear constraints, and check clause structure and meaning.

• 46 kort
• English

Study 88 cards on common network ports, TCP/UDP transports, service uses, port ranges, and practical protocol distinctions.

• 88 kort
• English

年号の丸暗記ではなく、重要事件の前後関係・原因・結果まで日本語で反復できる非公式の学習カード。

• 150 kort
• 日本語 — Japanese

Review current CompTIA A+ V15 Core 1 and Core 2 objectives with original flashcards for hardware, networking, operating systems, security, commands, and troubleshooting.

• 520 kort
• English

Prepare for CompTIA Network+ N10-009 with 250 original cards covering all five domains through focused recall, configuration choices, operations decisions, security, and troubleshooting scenarios.

• 250 kort
• English

Practice conditional probability with 44 original cards: choose the given group, calculate table ratios, reverse conditions, and repair denominator mistakes.

• 44 kort
• English

Tarjetas de la Constitución Española para oposiciones: memoriza los 169 artículos, títulos, órganos, reformas, disposiciones, plazos y mayorías clave.

• 242 kort
• Español — Spanish

Learn all 12 cranial nerves with 84 focused cards on names, numbers, classification as sensory, motor, or mixed, core functions, and safe high-level exam cues.

• 84 kort
• English

Practice cytoskeletal fibers, motor tracks, cell division, and ciliary patterns with 50 English flashcards and short checks for ambiguous clues.

• 50 kort
• English

Practica la elección productiva de conectores y expresiones para hablar y escribir en español B2, con contexto, registro, sintaxis, puntuación y alternativas válidas.

• 80 kort
• Español — Spanish

Practice Digital SAT math formulas, grammar rules, transitions, and words in context with original, installable flashcards built for active recall.

• 300 kort
• English

Practice 48 short physics prompts: check equation dimensions, derive coefficient units, judge function inputs, and recognize what a dimensional pass can establish.

• 48 kort
• English

Practice 40 original discriminant prompts: count distinct real roots, repair coefficient errors, interpret graph clues, and check parameter boundaries when the x² term vanishes.

• 40 kort
• English

134 English-cued cards: recall 43 Dutch nouns with de/het and their plurals, then practise 24 everyday verbs through short contexts and sentence gaps.

• 134 kort
• English

134 карточки с русскими подсказками: 43 нидерландских существительных с de/het и их множественное число, 24 глагола в контексте и задания с пропусками.

• 134 kort
• Русский — Russian

Независимые карточки для отработки ударений и трудных форм ЕГЭ-2026: слово, нормативное произношение, контраст и короткий контекст.

• 192 kort
• Русский — Russian

Карточки по истории России для ЕГЭ: даты, события, ключевые личности и выбранные причины и последствия — от Руси до 2022 года.

• 821 kort
• Русский — Russian

Карточки на русском для повторения терминов, признаков, классификаций и связей по обществознанию без копирования экзаменационных заданий.

• 217 kort
• Русский — Russian

英検®2級レベルの重要英単語を、日本語の意味・使い分け・短い例文で反復できる非公式フラッシュカード集です。

• 210 kort
• 日本語 — Japanese

300 unabhängig formulierte deutsche Lernkarten zum Wissen hinter den allgemeinen BAMF-Fragen – ohne die 10 landesspezifischen Fragen.

• 300 kort
• Deutsch — German

Practice neutral-atom ground-state electron configurations for every named element, with NIST-based shorthand and clearly labeled predictions.

• 131 kort
• English

54 English flashcards on 24 everyday phrasal-verb senses: meanings in context, sentence completion, and noun or pronoun word order.

• 54 kort
• English

Repasa reglas, señales y seguridad vial de California con tarjetas en español basadas en fuentes actuales del DMV, sin copiar preguntas reales.

• 232 kort
• Español — Spanish

Review common FE equations, variable meanings, units, assumptions, conversions, and searchable handbook navigation.

• 276 kort
• English

86 flashcards on fraction, decimal and percent conversions, exact and rounded equivalents, mixed-value comparisons, and common mistakes.

• 86 kort
• English

64 cards for English readers: understand 32 French fillers and discourse expressions in short contexts, then practise expression recall, contrasts, register and restrained use.

• 64 kort
• English

115 visuelle Karteikarten: deutsche Verkehrszeichen erkennen, ihre Bedeutung abrufen und das richtige Verhalten für Klasse B üben.

• 115 kort
• Deutsch — German

ITパスポートの先へ進む学習者向けに、科目Aの主要概念を用語・比較・計算・状況判断・関係や順序の5つの取り出し方で反復する、日本語の独立学習用デッキです。

• 360 kort
• 日本語 — Japanese

按真实前置关系先引入基础，再将公式、切线、单调性、极值与区间最值、含参与证明交错穿插，练习高考导数中的公式回忆、条件判断和题型入口；不收录真题、评分细则、课程标准原文或超出高中范围的系统微积分内容。

• 76 kort
• 简体中文 — Chinese (Simplified)

80 situazioni in italiano per richiamare espressioni tedesche di uso quotidiano, con frasi modello, registro, du/Sie e alternative utili.

• 80 kort
• Italiano — Italian

96 tarjetas con situaciones en español, construcciones alemanas, huecos breves y contrastes de uso: pronombres reflexivos, preposiciones, casos y expresiones cotidianas.

• 96 kort
• Español — Spanish

144 карточки для русскоязычных: вспоминайте артикль и множественное число 72 повседневных немецких существительных по отдельности, с переводом и коротким примером.

• 144 kort
• Русский — Russian

300 original flashcards for current-format GMAT Quant, Verbal, and Data Insights concepts, cues, and reusable decisions.

• 300 kort
• English

80 original English cards for maritime radio trainees: GMDSS terms, current sea-area concepts, selected channels, identification, MSI and alerting distinctions.

• 80 kort
• English

Predict GNU find output, repair expression grouping and missing prints, and distinguish filtering from directory pruning with 40 short tree-based exercises.

• 40 kort
• English

Predict GNU find -mtime and -mmin results, repair time filters, and practice -daystart order and explicit timestamp boundaries with small file lists.

• 40 kort
• English

Unabhängige B1-Karteikarten für prüfungsrelevanten Wortschatz, klare Bedeutungen und kurze Beispiele. Nach Themen geordnet und kostenlos lernbar.

• 288 kort
• Deutsch — German

Review 90 core concepts for the 2026–2030 U.S. Technician Class exam across all ten NCVEC subelements.

• 90 kort
• English

Study 105 cards on organization levels, 11 organ systems, representative organs, core functions, and homeostasis. This model counts integumentary separately and combines lymphatic/immune.

• 105 kort
• English

Review the current IB Biology Standard Level course with 960 independently written active-recall cards covering all 34 SL topics across molecules, cells, organisms, genetics, evolution, and ecology.

• 960 kort
• English

80 بطاقة لمفردات IELTS Academic: معنى عربي أولاً، ثم الاستعمال المناسب، والتلازمات الشائعة، وأمثلة إنجليزية أصلية قصيرة.

• 80 kort
• العربية — Arabic

भारत के 106 राष्ट्रीय उद्यानों को राज्य या केंद्र शासित प्रदेश से जोड़ें और चुने हुए अधिसूचना वर्ष, प्रमुख वन्यजीव व उलटी राज्य-से-उद्यान दिशा का अभ्यास करें।

• 153 kort
• हिन्दी — Hindi

Practice ionic compound naming with 56 English flashcards on neutral formulas, Roman numerals, polyatomic-ion parentheses, and common errors.

• 56 kort
• English

48 original IPv4 subnetting flashcards on network and broadcast boundaries, usable host endpoints, address roles, capacity, and common mistakes, with brief worked reasoning.

• 48 kort
• English

Count electrons, find matching ion configurations, rank ionic radii, and repair common charge and ordering errors with 42 short chemistry flashcards.

• 42 kort
• English

ITパスポート 単語帳として、シラバスVer.6.5の重要用語と基礎概念425項目を、3分野の日本語フラッシュカードで復習できます。

• 425 kort
• 日本語 — Japanese

Study 170 independently selected post-N5 kanji through word recognition, contextual spelling, and reading or usage distinctions.

• 400 kort
• English

独立编写的英语（一）核心词汇卡：中文释义、词族、搭配、辨析与原创语境。

• 360 kort
• 简体中文 — Chinese (Simplified)

112 Hangul-based cards for English-reading beginners: 84 everyday words in short contexts, with 28 selective recall prompts and polite Korean examples.

• 112 kort
• English

72 Karten für Deutschsprachige: lateinische Präpositionen mit Kasusrektion, Bedeutungen in eigenen Beispielsätzen und ausgewählte Konjunktionen und Subjunktionen im Kontext.

• 72 kort
• Deutsch — German

Practice essential Linux terminal commands through 100 task-first cards on paths, files, search, pipes, permissions, processes, archives, and system checks.

• 100 kort
• English

Practise 40 original matrix multiplication prompts: check dimensions, calculate row-by-column entries, compare AB and BA, and repair common errors.

• 40 kort
• English

Memorize MCAT physics and chemistry equations with variables, units, conditions, and original when-to-use examples—not a bare formula dump.

• 180 kort
• English

Practice 42 measurement uncertainty prompts: absolute and percentage amounts, arithmetic handoffs, and mistake repairs under a stated classroom interval model.

• 42 kort
• English

Study common clinical abbreviations across 90 flashcards with concise expansions, plain-English context, and six ambiguity and safety checks—for terminology review, not clinical decisions.

• 90 kort
• English

Installable practice for interval names, semitone counts, inversions, identification, and spelling-aware construction in written music theory.

• 181 kort
• English

Practice tempo words, dynamic markings, abbreviations, and changes in speed or loudness with 57 English flashcards and short performance scenarios.

• 57 kort
• English

NCERT कक्षा 10 विज्ञान अध्याय 2 के लिए स्वतंत्र हिंदी फ्लैशकार्ड—सूचक, pH, उदासीनीकरण, अभिक्रियाएँ और उपयोगी लवण, छोटे उदाहरणों सहित।

• 72 kort
• हिन्दी — Hindi

日商簿記3級の仕訳を取引と決算整理から反復。大半は仕訳を答え、少数は借方・貸方や残高の考え方を確認する独立教材です。

• 156 kort
• 日本語 — Japanese

Study the current NREMT EMT test plan with original flashcards for scene safety, assessment, treatment, transport, and operations.

• 360 kort
• English

面向教师资格考试301《综合素质》（中学）的166张简体中文闪卡，复习五大模块的核心概念、法规责任、应用判断与易混辨析。

• 166 kort
• 简体中文 — Chinese (Simplified)

Practice reinforcement and punishment with 48 English flashcards: original scenarios, clear behavior changes, and checks for insufficient information.

• 48 kort
• English

Practice 19 organic functional-group families with 57 cards on condensed structures, name-to-connectivity recall, and distinctions between easily confused groups.

• 57 kort
• English

Practice past perfect vs past simple with 42 timeline cards: event order, whole-phrase choices, before/after alternatives and explained meaning repairs.

• 42 kort
• English

Review 88 concise cards on atomic and ionic radius, shielding, effective nuclear charge, ionization energy, electron affinity, electronegativity, metallic character, exceptions, and comparisons.

• 88 kort
• English

Study 126 cards on 30 common drug classes: mechanisms, qualified generic-name patterns, common uses, and major safety concepts for nursing and introductory health science.

• 126 kort
• English

Practice writing PostgreSQL queries with 63 SQL interview tasks, from filtering and joins to ranking and rolling windows, ordered so direct introductions come before combinations.

• 63 kort
• English

Practice 42 original English flashcards on memory interference: both directions, target and competitor checks, paired scenarios, and missing-evidence decisions.

• 42 kort
• English

Practice probability without replacement with 43 solved cards on changing counts, ordered and either-order draws, complements, and hidden versus observed results.

• 43 kort
• English

بطاقات عربية مستقلة لمراجعة القواعد الكمية وأنماط العلاقات اللفظية مع أمثلة أصلية قصيرة، من دون نسخ أسئلة الاختبار.

• 144 kort
• العربية — Arabic

Practice recurring decimals as exact fractions, choose powers of ten, handle non-repeating digits and leading zeros, and check common algebra mistakes.

• 46 kort
• English

Practice relative risk and odds ratio with 42 original cards on two-way tables, reference groups, odds versus probability, baseline conversions and common mistakes.

• 42 kort
• English

Practice relative and parallel minor with mixed key relationships, natural-minor note changes, accidental repairs, and checks on what a signature can tell you.

• 48 kort
• English

Practise 42 original resistor color-code prompts: decode and build conventional 4- and 5-band codes, calculate nominal tolerance intervals, and repair common errors.

• 42 kort
• English

88 карточек с русскими подсказками: формы vos, просьбы и домашние ситуации по образцу Буэнос-Айреса. Региональные слова, сравнение с tú и оговорки об Уругвае.

• 88 kort
• Русский — Russian

30 English cards on eight SAP IDoc statuses, sender/receiver boundaries and display-only next observations. Scoped to classic ALE/tRFC in SAP S/4HANA 2025 FPS01.

• 30 kort
• English

Practice exact scientific notation with 42 solved cards on decimal conversions, normalization, all four operations, signed values, and local error checks.

• 42 kort
• English

Repasa 125 tarjetas sobre señales, órdenes, semáforos y marcas viales clave del permiso B según el catálogo español vigente.

• 125 kort
• Español — Spanish

40 written music-theory cards: identify seventh chords and inversions, build voicings over a required bass, and repair errors in root, spelling, or figures.

• 40 kort
• English

Practice 48 significant figures prompts: report short mixed calculations, track precision handoffs, repair rounding mistakes, and handle explicitly exact inputs.

• 48 kort
• English

Practice all 7 SI base units and 22 derived units with special names: quantities, symbols, and base-unit expressions in one installable deck.

• 110 kort
• English

Build a practical Spanish A1 vocabulary base with 480 cards covering 400 beginner words and phrases, gender-aware nouns, useful regional notes, and selective Spanish production.

• 480 kort
• English

Choose and conjugate the Spanish preterite or imperfect in 160 original context questions, paired contrasts, and four short stories for A2–B1 practice.

• 160 kort
• English

Узнайте 30 персонажей саги «Сумерки» по фотографиям: имена, родственные связи, дружба и романтические отношения.

• 30 kort
• Русский — Russian

112 English-cued cards: 28 Swedish nouns with en/ett, 28 separate plurals, 28 present-tense verb gaps and 28 short phrases for home, food, travel and conversation.

• 112 kort
• English

Memoriza nombres, símbolos y números atómicos de los 118 elementos con tarjetas bidireccionales en español y orden de estudio progresivo.

• 354 kort
• Español — Spanish

مراجعة عربية مستقلة وغير رسمية لمفاهيم أحياء التحصيلي العلمي عبر 180 بطاقة قصيرة قابلة للاستدعاء.

• 180 kort
• العربية — Arabic

118 carte per italofoni: nomi delle 44 consonanti, classi selezionate, suoni iniziali e finali e 11 grafie vocaliche di base. Aiuti di pronuncia con limiti espliciti.

• 118 kort
• Italiano — Italian

Study the 12 current TOEFL iBT task types with 180 original cards on vocabulary, sentence patterns, task decisions, and reusable strategy cues.

• 180 kort
• English

Study 90 English flashcards: four triad-quality rules plus 43 root-position major, minor, diminished, and augmented chords in both spelling and identification directions.

• 90 kort
• English

84 truth-table flashcards on logical connectives, material conditionals, nested expressions, equivalence, and counterexamples, with short explanations.

• 84 kort
• English

Recognize 30 Twilight Saga characters from photos and learn their names, family ties, friendships, and romantic relationships.

• 30 kort
• English

Practice VSEPR shapes, electron geometry, lone pairs, AXE notation, and ideal bond angles with 78 focused English flashcards.

• 78 kort
• English

Practise 42 original weighted-average prompts: choose weights, combine group means, compare stated grading policies, and repair common calculation errors.

• 42 kort
• English

Study world history from 1200 to the present with 500 sourced cards on chronology, exchange, states, revolutions, conflict, globalization, and source analysis.

• 500 kort
• English