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Learning & Reference
275 appsLearning & Reference: Reading & Words
5 appsGrade 4 Writing Checker
Check if your sentences and word choices are friendly for a typical fourth-grade reader.
Kids Readability Checker
See how easy your writing is to read and spot words that may slow a young reader down.
Reading Choice Quiz Maker for Kids
Turn a short reading passage into a path with answers, clues, and feedback.
Simple Word Checker
Check whether a word is on the list of words most fourth graders know.
Tricky Word Finder
Find the less familiar words in a story, lesson, or note so you know what to explain.
Learning & Reference: Early Reading
5 appsAlphabet Flipbook Maker for Kids
Pick a starting letter and turn through six big letter-and-word pages.
Early Reader Checker
Check a short passage against familiar words used by children who are learning to read.
Easy Sentence Builder
Build short practice sentences from familiar early-reader words.
First Reader Word Checker
Check one word at a time to see if many beginning readers may know it.
Reading Practice Maker
Turn a few familiar words into quick read, find, and write practice cards.
Learning & Reference: Vocabulary & Words
22 appsDictionary Teamwork Explorer for Kids
See how volunteer editors and contributors worked together on a word.
Friendly Dictionary for Kids
Look up a familiar word and read clear meanings, examples, and close words together.
Human-Edited Word Meanings for Kids
Open up one word and see the different ideas that can share its spelling.
Kid Thesaurus
Find familiar words connected to your idea without ads, accounts, or tricky definitions.
Multiple Word Meaning Finder for Kids
See how one spelling can have several meanings, like bat, spring, or play.
Opposite Word Finder for Kids
Find an opposite word and see the exact meaning that makes the pair work.
Parts of a Thing Explorer for Kids
Look inside a thing and name the smaller pieces that help make it whole.
Poetry Word Bank for Kids
Make short, medium, and long word lists around one idea for your next poem.
Simple Word Swap Finder for Kids
Turn a long word into shorter choices that may be easier to read and explain.
Simple WordNet Dictionary for Kids
Look up a familiar word and see its meanings, examples, and close words in one clear place.
Specific Word Kinds Explorer for Kids
Start with a broad group and discover more exact kinds inside it.
Stronger Word Finder for Kids
Find longer, more colorful word choices for stories, poems, and school writing.
Synonym by Meaning Finder for Kids
Read the meaning first, then pick a close word that says the same idea.
Synonyms by Definition for Kids
Read one definition, then find close words that match that exact idea.
Vocabulary Flipbook Maker for Kids
Add six words and make a page-turning book with simple meanings or drawing prompts.
Vocabulary Ladder Maker for Kids
Follow a playful chain where every new word connects to the word before it.
Whole and Part Word Explorer for Kids
Start with one part and find a larger whole that may contain it.
Word Category Ladder for Kids
Climb from one exact word to the bigger groups it belongs to.
Word Example Sentence Finder for Kids
Find real example sentences and see the meaning connected to each one.
Word Meaning Count Comparer for Kids
Put two words side by side and compare their meanings, jobs, and examples.
Word Relationship Map for Kids
Put one word in the middle and explore its groups, kinds, parts, and close words.
Word Web Maker for Kids
Put one word in the middle and build a clear web of connected ideas around it.
Learning & Reference: Phonics & Rhymes
10 appsAlliteration Word Finder for Kids
Find familiar words that begin with the same sound for silly sentences and poems.
First and Last Sound Finder for Kids
Slow a word down and see the speech sound at its beginning and at its end.
Homophone Finder for Kids
Find familiar words that sound the same but may have a different spelling or meaning.
Poetry Meter Checker for Kids
Turn one short poetry line into a clear pattern of strong and soft syllable beats.
Pronunciation Decoder for Kids
Turn dictionary sound codes into short, friendly chunks you can read from left to right.
Rhyme Finder for Kids
Find familiar words with the same ending sounds for poems, songs, and word games.
Rhyming Pair Checker for Kids
Check two words and learn whether their last strong vowel and ending sounds match.
Syllable Clapping Practice
Type one word and get a big clap marker for every vowel beat you should hear.
Syllable Counter for Kids
Count the vowel beats in a short sentence and see the count for every word.
Word Stress Finder for Kids
See which syllables have a strong beat and which syllables have a softer beat.
Learning & Reference: Math Learning
10 appsCombination Counter for Kids
Find how many different groups you can choose when the order does not matter.
Factorial Explorer for Kids
See how a factorial multiplies a whole number by every smaller positive number.
Fraction Simplifier for Kids
Reduce a fraction to its simplest form and see the number used to divide it.
Goldbach Prime Pairs Explorer
Split an even number into two prime numbers and discover a famous math pattern.
Greatest Common Factor Finder for Kids
Find the biggest whole number that divides two numbers with nothing left over.
Least Common Multiple Finder for Kids
Find the first positive number that two whole numbers both divide evenly.
Mean, Median, and Mode for Kids
Check a short number list and see its mean, median, mode, and range together.
Number to Words for Kids
Turn a number into clear English words for homework, checks, and reading practice.
Prime Factor Tree Maker
Break a number into the small prime numbers that multiply to make it.
Prime Number Checker for Kids
Check whether a whole number is prime and see every factor that divides it evenly.
Learning & Reference: Math Writing
4 appsEquation Editor for Kids
Type fractions, roots, powers, and full equations with a friendly math keyboard.
Fraction Builder for Kids
Build neat stacked fractions and combine them with plus, minus, and times signs.
Math Symbol Keyboard for Kids
Find and type common math symbols without hunting through a computer keyboard.
Printable Equation Sheet Maker
Type a clean math problem, add a title, and print a simple practice page.
Learning & Reference: Handwriting Practice
3 appsHandwriting Practice Sheet Maker
Type a short sentence and print lined rows for tracing and copying practice.
Handwriting Stroke Animator for Kids
Watch simple capital A, M, and S strokes draw in a helpful order for practice.
Name Tracing Sheet Maker
Type a name and make a simple practice page with large, easy-to-trace letters.
Learning & Reference: Music Learning
19 appsArpeggio Direction Explorer for Kids
Compare an arpeggio that climbs, falls, or makes wide jumps.
Arpeggio Pattern Player for Kids
Break a chord into single notes and compare playful note patterns.
Call-and-Response Melody Maker for Kids
Hear four call notes, then make four notes that answer them.
Chord Strum Explorer for Kids
Hear one chord from low to high, high to low, or all together.
Easy Melody Practice
Follow a short row of notes and practice a tiny song at your own speed.
Instrument Family Sampler for Kids
Hear keys, strings, brass, and woodwinds side by side with big sound cards.
Instrument Range Explorer for Kids
Choose an instrument and hear three notes across its useful pitch range.
Major and Minor Chord Listener for Kids
Pick a starting note and hear how major and minor chords differ.
Major Scale Piano Step Trainer for Kids
Play C, G, or F major one correct step at a time on the touch piano.
Melody Pitch Transposer for Kids
Shift every note in a local melody by the same amount while its rhythm stays steady.
Note Length Listener for Kids
Hear the same sampled instrument play a short, medium, and long note.
Octave Pitch Shift Explorer for Kids
Hear exactly what one octave down, one octave up, and a wide jump sound like.
Piano Chord Shape Trainer for Kids
Build clear major and minor chord shapes by finding all three piano notes.
Piano Note Frequency Finder
Tap any piano key to see its note name and frequency in hertz.
Piano Note Name Practice for Kids
See a note name like C4 or F sharp, then find it on the touch piano.
Pitch Up-or-Down Listener for Kids
Hear an original and changed sound take turns, then listen for the direction.
Semitone Pitch Step Explorer for Kids
Move a sound one, three, or five keyboard steps and see its exact pitch factor.
Sight-Reading Piano Practice for Kids
Look at one clear staff note, then find and play it on the piano.
Soft and Loud Instrument Listener for Kids
Compare one instrument played softly, in the middle, and strongly.
Learning & Reference: Science Labs
5 appsBall Drop Physics Lab
Drop bright balls onto ramps and see how gravity guides every roll and bounce.
Common Molecule Explorer for Kids
Explore the shapes behind caffeine, sugar, aspirin, vitamin C, and more.
Molecular Formula Finder
Draw a molecule from SMILES and find its molecular formula in one clear step.
Molecule Coloring Page Maker
Make a clean black-and-white molecule picture to print, trace, or color.
Molecule Structure Drawer
Turn a short chemistry code into a clear picture of atoms and bonds.
Learning & Reference: Feelings & Emoji
3 appsLearning & Reference: Emoji Word Play
2 appsLearning & Reference: Citations & Research
1 appLearning & Reference: Culture & Dates
4 appsChinese Lunar Date Converter
Turn a Gregorian date into its Chinese lunar date, zodiac year, and solar term.
Chinese Zodiac Finder
Find the Chinese zodiac animal and traditional year name for any birthday.
Prayer Times Calculator
Calculate daily Islamic prayer times from a date, location, and trusted calculation method.
Qibla Direction Finder
Find the compass direction toward the Kaaba from any latitude and longitude.
Learning & Reference: Sky & Science
4 appsEquinox & Solstice Calculator
Find the exact equinox and solstice times that mark the four astronomical seasons.
Moon Phase Finder
See the Moon's phase, illumination, and the next four quarter phases for any date.
Next Eclipse Finder
Find the next solar and lunar eclipses after any date with their type and peak time.
Sunrise & Sunset Calculator
Calculate sunrise, sunset, and daylight length from a date and coordinates.
Learning & Reference: Countries & Travel
7 appsCountry Calling Code Finder
Find the international phone prefix for any country, or search a prefix to see possible countries.
Country Comparison Tool
Compare two countries side by side by area, region, currencies, languages, and borders.
Country Currency Finder
Find the currency name, code, and symbol used by any country.
Country Fact Finder
Look up a country's capital, region, codes, currencies, languages, area, and neighbours.
Country Language Finder
See the listed languages and native country names for any country.
Plus Code Decoder
Decode a full Plus Code into its center coordinates and covered area.
Plus Code Generator
Turn latitude and longitude into a shareable Plus Code that works without a street address.
Learning & Reference: Everyday Checks
4 appsIBAN Checker & Formatter
Check an IBAN's country structure and checksum, then format it into readable groups.
International Phone Number Checker
Check whether an international phone number has a possible and valid shape, then format it clearly.
ISBN Checker & Converter
Validate ISBN-10 or ISBN-13, add correct hyphens, and convert between book-number formats.
Phone Number Country Finder
Find the likely country and calling code for an international phone number.
Learning & Reference: 3D Chemistry
6 apps3D Atom Color Explorer
Learn the common colors used for carbon, hydrogen, nitrogen, and oxygen atoms.
3D Molecule Viewer for Kids
Turn, zoom, and compare familiar molecules in a clear interactive 3D lab.
Caffeine Molecule 3D Explorer
Turn the 24 atoms in a caffeine molecule and see its two joined rings.
DNA Base 3D Explorer for Kids
Meet adenine, one of the four letter-like bases that help make DNA.
Molecule Shape Explorer for Kids
Compare straight, bent, flat, pyramid, and tetrahedron molecule shapes.
Molecule Style Switcher for Kids
Switch one molecule between balls, sticks, filled atoms, and simple lines.
Learning & Reference: 8-Bit Learning Arcade
9 appsFact or Fiction Arcade for Kids
Read quick science, math, and everyday statements, choose fact or fiction, and learn from each helper.
Kindness Combo Maker for Kids
Load a small kindness idea, draw another when it does not fit, and mark the move when it is done.
Pixel Mood Check-In for Kids
Choose calm, happy, tired, worried, frustrated, or excited and get one small, safe next step.
Reading Power-Up Tracker for Kids
Choose a text, read for five minutes, notice one idea, and tell or write what happened.
Screen Break Timer for Kids
Choose a short break, use the large timer, look far away, blink, and return when your eyes and body feel ready.
Spelling Blaster Game for Kids
Use a clue and sound-part hint to type useful words, fix mistakes, and fill the word power bar.
Study Level Planner for Kids
Gather tools, read directions, finish one part, check one answer, and choose what comes next.
Times Table Arcade for Kids
Practice friendly times-table questions, get a clear helper after a miss, and fill an 8-bit power bar.
Typing Speed Run for Kids
Type positive sentences, see live accuracy, and earn points for matching every letter and mark.
Learning & Reference: Accessibility Tools
1 appLearning & Reference: Accessible Reading
5 appsHyperlegible Reading Preview for Kids
Preview a short passage with distinct letter shapes, large type, and roomy lines.
Large-Print Reading Card Maker
Turn a short direction, reminder, or fact into a clear large-print card.
OpenDyslexic Reading Preview
Preview your own passage in OpenDyslexic and choose the size and spacing you prefer.
OpenDyslexic Reading Ruler for Kids
Highlight one line, then move the reading ruler up or down through a short passage.
Spaced Reading Card Maker for Kids
Adjust letter, word, and line spacing to make a reading card that feels comfortable.
Learning & Reference: Animals & Nature
1 appLearning & Reference: Animation Makers
1 appLearning & Reference: Classroom Helpers
1 appLearning & Reference: Classroom Printables
1 appLearning & Reference: Classroom Supports
1 appLearning & Reference: Classroom Tools
4 appsClassroom Demo Stop-Motion for Kids
Capture a fraction model, bridge build, or sorting activity and replay every step for the class.
Classroom Scenario Builder for Kids
Make a safe choice story about teamwork, learning, or solving a class problem.
Ink Classroom Decision Story for Kids
Turn a classroom problem into a coded story with teamwork points.
Whiteboard Stop-Motion Maker for Kids
Add a few marks between pictures to reveal a word, math idea, or map route clearly.
Learning & Reference: Coding Concepts
1 appLearning & Reference: Coding Helpers
1 appLearning & Reference: Comics & Characters
2 appsLearning & Reference: Communication
3 appsClassroom Choice Board for Kids
Choose art, music, a book, a game, a ball, or a bike with one clear tap.
Feelings Communication Board for Kids
Tap a big face to share happy, sad, angry, worried, tired, or calm feelings.
Needs Communication Board for Kids
Tap a clear picture to ask for a drink, food, help, the bathroom, rest, or a talk.
Learning & Reference: Countries & Cultures
4 appsCountry Calling Code Finder for Kids
Type the digits after a plus sign and see which countries use that calling code.
Country Facts Explorer for Kids
See a country's flag, capital, continent, languages, money, and calling code.
World Currencies Explorer for Kids
Pick a currency and see its name, symbol, code, and places that use it.
World Languages Explorer for Kids
Pick a language, read its local name, and see countries where it is listed.
Learning & Reference: Creative Coding
3 appsTurtle Code Drawing Playground
Give a turtle a few simple commands and watch it draw a bright picture one line at a time.
Turtle Coordinate Path Builder
Send the turtle to x and y points and see those coordinates join into a clear path.
Turtle Polygon Maker
Choose the number of sides and see how forward steps and equal turns make a polygon.
Learning & Reference: Daylight Tables
3 appsDaylight Comparison Tool
Compare daylight length, sunrise, and sunset between two dates at the same location.
Monthly Daylight Table
Build a full month of sunrise, sunset, and daylight durations for one place.
Weekly Daylight Table
Build a seven-day sunrise, sunset, and daylight table from one starting date.
Learning & Reference: Ear Training
1 appLearning & Reference: Feelings & Friendship
2 appsLearning & Reference: Fraction Tools
1 appLearning & Reference: Geometry Tools
4 appsAngle Sketch Lab for Kids
Draw and move two rays to explore acute, right, and obtuse angles on a large grid.
Coordinate Plane Drawing Tool for Kids
Use four quadrants to make a point picture, mark coordinates, or plan a route across a grid.
Geometry Construction Animator for Kids
Watch a triangle, hexagon, or set of angles grow from clear construction lines.
Geometry Construction Board for Kids
Make a shape house, matching halves, or a repeating pattern on a clear square grid.
Learning & Reference: Grammar & Words
2 appsLearning & Reference: History Learning
1 appLearning & Reference: Language & Words
1 appLearning & Reference: Learn to Code
2 appsLearning & Reference: Learning Quests
11 appsChore Level-Up Chart for Kids
Check off a few useful home jobs, add your own chore, and watch a simple hero level grow.
Classroom Team Quest Board for Kids
Track shared jobs for taking turns, hearing every voice, finishing a goal, and cleaning the team space.
Confidence Shield Builder for Kids
Build a short reminder from a strength, helpful thought, next move, and shield symbol.
Daily Kindness Quest for Kids
Pick a safe, free kindness idea for an ordinary day and celebrate when the small quest is done.
Healthy Habit Hero for Kids
Track water, enjoyable movement, helpful food, and sleep preparation without chasing perfection.
Homework Quest Board for Kids
Break homework into clear missions, finish one step at a time, and build a simple experience bar.
Math Monster Battle for Kids
Solve addition, subtraction, multiplication, division, and halving puzzles to fill a victory bar.
Reading Adventure Timer for Kids
Choose a five, ten, fifteen, or twenty minute reading quest and track one calm session.
Spelling Spellbook Quest for Kids
Read a friendly clue, type the hidden word, and use a sound-part hint when you need help.
Study Potion Focus Timer for Kids
Choose a short focus quest, use the big timer, and mark the session done when it is time to rest.
Vocabulary Treasure Hunt for Kids
Find six word treasures by choosing the word that fits each clear, fifth-grade-friendly meaning.
Learning & Reference: Letters & Numbers
1 appLearning & Reference: Light & Twilight
6 appsAstronomical Darkness Planner
Find when astronomical night starts, ends, and reaches its darkest point.
Blue Hour Calculator
Estimate morning and evening blue hour using the sun's minus 8 to minus 4 degree range.
Civil Twilight Planner
Find the morning and evening civil-twilight windows around sunrise and sunset.
Daylight Length Calculator
Calculate daylight, night length, sunrise, and sunset for a date and place.
Nautical Twilight Planner
Find when nautical twilight begins and ends before dawn and after dusk.
Twilight Times Calculator
List astronomical, nautical, civil, sunrise, sunset, and night times in order.
Learning & Reference: Maps & Directions
1 appLearning & Reference: Maps & Geography
3 appsContinent Coloring Map Maker
Choose a continent, color every country shape in it, and print the map.
Country Size Comparer for Kids
Put two country outlines side by side and see which map shape takes up more space.
World Map Explorer for Kids
Pick a country, see it light up on the map, and learn its capital and languages.
Learning & Reference: Math & Dot Art
3 appsBinary Dot Picture Maker
See how rows of zeros and ones can switch dots off and on to draw a tiny picture.
Dot Coordinate Grid Explorer
Move around a 16 by 16 dot grid and see the x, y, and index number for every spot.
Times Table Dot Art Maker
Pick a times table and watch its products light up as a colorful dot pattern.
Learning & Reference: Minecraft Learning
9 appsMinecraft Biome Explorer for Kids
Pick a biome and learn its climate, temperature, precipitation, category, and dimension.
Minecraft Block Facts Explorer for Kids
Pick a block and see its hardness, light, stack size, transparency, and best tool.
Minecraft Block Hardness Comparer
Put two blocks side by side and see which one is easier or harder to break.
Minecraft Crafting Recipe Helper for Kids
Choose a familiar item and see the ingredients in a clear three-by-three crafting grid.
Minecraft Enchantment Explorer for Kids
Choose an enchantment and see its highest level, item group, treasure flag, and trade flag.
Minecraft Food Points Explorer for Kids
Pick a food and see how many food points it gives and how many fit in one stack.
Minecraft Light Level Explorer for Kids
See how much block light comes from a torch, lantern, glowstone, and other bright blocks.
Minecraft Mob Size Comparer for Kids
Choose two mobs and compare their data-sized shapes from a tiny bee to a tall Enderman.
Minecraft Stack Calculator for Kids
Turn any item count into full stacks, extra items, and the number of inventory slots needed.
Learning & Reference: Moon Planning
4 appsMoon Photography Planner
Combine moon position, rise and set times, lit percentage, and phase for one shot time.
Moon Position Calculator
Calculate moon altitude, compass direction, distance, and parallactic angle at one time.
Moonrise & Moonset Calculator
Calculate local moonrise, moonset, and all-day horizon status for a place and date.
Sun & Moon Daily Timeline
Create one ordered local timeline for dawn, sun, twilight, moonrise, and moonset.
Learning & Reference: Museums & Art
3 appsArt History Time Traveler for Kids
Slide from ancient Egypt to the 1900s and uncover one museum object at a time.
Art Materials Explorer for Kids
Compare paint, metal, clay, jade, wood, cloth, feathers, and other art materials.
Met Museum Object Explorer for Kids
Meet cats, dragons, masks, paintings, toys, and more from the Met collection.
Learning & Reference: Painting & Drawing
1 appLearning & Reference: Piano Practice
3 appsFind Middle C Piano Practice for Kids
Practice finding middle C on a wide piano without a printed answer on the key.
Learn-a-Melody Piano Trainer for Kids
Follow clear note clues on a real touch piano until you can play the whole tune.
Left and Right Hand Piano Practice for Kids
Follow simple hand clues while low and high piano notes take turns.
Learning & Reference: Reading Practice
1 appLearning & Reference: Science Supports
8 appsAtom Motion Model for Kids
Explore a simple helium, carbon, or neon model with moving dots and clear pause controls.
Nature Outline Tracer for Kids
Open a clear nature picture and turn its strongest edges into a simple outline for a study page.
Science Diagram Drawing Animator for Kids
Animate a water cycle, plant-parts picture, or simple circuit one useful line at a time.
Science Observation Sketchbook for Kids
Sketch a leaf, the Moon, or your own object, then circle details and add questions or notes.
Science Process Animator for Kids
Show a seed growing, a water drop moving, or moon phases changing in a few clear frames.
Science Process Stop-Motion for Kids
Capture a safe paper or clay model step by step to explain plant growth, cycles, or states.
Weather Journal Animation for Kids
Put local sky pictures or weather cards in order and watch clouds, rain, and sunshine change.
Weather Loop Animator for Kids
Build a short repeating sky scene with a drifting cloud, falling drops, or soft snowflakes.
Learning & Reference: Sound Science
12 appsChord Pitch Shift Lab for Kids
Send a whole three-note chord through real multi-tone pitch shifting.
Harmonic Series Explorer for Kids
Hear a starting tone and its first whole-number frequency multiples.
Instrument Room Sound Explorer for Kids
Move one clear slider to hear a close instrument or a roomy echo.
Instrument Tone Balance Explorer for Kids
Use WebAudioFont's real equalizer to make an instrument warmer or brighter.
Overdrive Tone Explorer for Kids
Use Tuna's real waveshaper to hear how a clean tone becomes rough and fuzzy.
Ping-Pong Echo Explorer for Kids
Send real delay repeats from one side to the other and back again.
Sound Compressor Loudness Lab for Kids
Compare light and strong compression while a clear sound pattern plays.
Sound Filter Sweep Lab for Kids
Move a low-pass filter and hear a rich tone open from dark to bright.
Sound Wave Visualizer for Kids
Change the pitch and see a sine, triangle, square, or sawtooth wave.
String Length and Pitch Lab for Kids
Compare six string lengths and hear how shortening raises pitch.
Tone Spectrogram Explorer for Kids
Play a generated tone sweep and watch its frequency band move upward.
Voice Pitch Playground for Kids
Slide from low to high pitch while the local demo keeps the same length.
Learning & Reference: Space & Astronomy
1 appLearning & Reference: Space & Planets
7 appsAlien Year Age Calculator
Type your Earth age and count how many trips you would make around another star.
Exoplanet Discovery Timeline for Kids
Travel from a 1992 discovery to newer worlds found by watching stars and shadows.
Exoplanet Distance Race for Kids
Race two faraway worlds and see how many years even light would need to reach them.
Exoplanet Explorer for Kids
Explore 12 real faraway worlds and compare their stars, years, sizes, and distances.
Exoplanet Size Comparer for Kids
Put two exoplanets side by side and see how their sizes compare with Earth.
Exoplanet Temperature Explorer for Kids
Compare estimated temperatures on rocky worlds and giant planets far from Earth.
Space Fact Flipbook for Kids
Explore six clear pages about planets, the Moon, or stars.
Learning & Reference: Spelling Practice
3 appsHyperlegible Spelling Sheet Maker
Give up to ten spelling words distinct shapes and wide writing lines.
OpenDyslexic Spelling Sheet Maker
Make a printable ten-word spelling page in OpenDyslexic with wide writing lines.
Spelling Word Magic Revealer
Scramble one spelling word, say it aloud, then watch every correct letter return.
Learning & Reference: Sun Position
7 appsObserver Height Sunrise Calculator
Compare sea-level sunrise and sunset with an observer standing above the horizon.
Shadow Length Calculator
Use the sun angle and an object's height to estimate its level-ground shadow length.
Solar Noon Calculator
Find local solar noon, the day's highest sun angle, and the darkest night point.
Solar Panel Sun Angle Helper
Find the panel tilt and compass direction that faces the sun at one exact time.
Sun Position Calculator
Calculate the sun's altitude, compass direction, and horizon status for a place and time.
Sunrise Direction Calculator
Calculate the sunrise compass bearing, time, and plain direction for any place and day.
Sunset Direction Calculator
Calculate the sunset compass bearing, time, and plain direction for any place and day.
Learning & Reference: Systems Thinking
5 appsBalancing Feedback Loop Explorer
Watch a fan push back against heat and help a room move toward balance.
Cause-and-Effect Loop Maker for Kids
Name four connected ideas and watch a change travel all the way around.
Ecosystem Loop Maker for Kids
Follow rain, plants, animals, and soil around a simple meadow system.
Habit Loop Mapper for Kids
Map how a cue, action, reward, and repeat can turn into a habit.
Positive Feedback Loop Explorer
See how practice, skill, confidence, and motivation can help one another grow.
Learning & Reference: Tracing & Fine Motor
4 appsAlphabet Tracing Board for Kids
Choose A, B, or C, start at the green dot, and follow a clear dotted letter with a steady brush.
Number Tracing Board for Kids
Follow a large dotted 1, 2, or 3, then draw the same number of stars, dots, or hearts.
Pre-Writing Lines Board for Kids
Move from Start to Finish along three large dotted paths and practice steady hand movements at your pace.
Shape Tracing Board for Kids
Trace a circle, triangle, or square, then draw the shape again and turn it into a character.
Learning & Reference: U.S. Geography
3 appsLearning & Reference: Visual Learning
2 appsLearning & Reference: Visual Novels
6 appsBook Report Visual Novel Maker for Kids
Turn a setting, problem, choice, and lesson into a playable report.
Classroom Visual Novel Maker for Kids
Turn a small classroom problem into a calm practice story.
Feelings Visual Novel Maker for Kids
Show a feeling, choose a helpful action, and write what changes.
Friendship Visual Novel Practice for Kids
Try a kind question, a clear answer, and a helpful next step.
History Role-Play Visual Novel for Kids
Write a past problem and compare what different choices can do.
Vocabulary Visual Novel Maker for Kids
Use clues, dialogue, and examples to make a new word easy to learn.