Every lesson, hanging together.
Live teaching tools, ready-to-play activities, worksheets that check themselves and print with a separate answer key, and makers to build your own — free to start, from preschool to grade 3.
A full library of printable worksheets · live teaching tools · ready-to-play activities · all in your language
Start where every lesson starts: at the front of the room
Classroom instruments you project and teach from. The apparatus does the correcting: the beam tips, so nobody has to say wrong.




It loads in a second — nothing to install.
Every worksheet plays and prints
Not some of them — all of them. The same page that plays on a tablet prints as a PDF with its answer key.
Every child has something of their own to do
Short activities, one in every child's hands, tied to the skill you're teaching this week. The page checks itself quietly, so you're walking the room instead of standing at the answer key.
Make it exactly right for your class
Pick the exercise, the number range, the theme, the artwork — even your own photos. One build gives you an interactive worksheet that checks itself, and a print-ready PDF with an answer key.



Start free. Go unlimited when you're ready.
Everything is free to try, no card: 10 interactive plays a day, and 3 PDF downloads a month with a free account. The Teacher plan removes the limits, opens every tool’s full depth, and saves what you build.
Free
Start here — no card
- All the tools and makers, free to try
- 10 interactive plays a day
- 3 PDF downloads a month with a free account
- Browse the entire library
Teacher
$69 per year
- Unlimited play and downloads
- Every tool’s full depth — print, save, the whole repertoire
- Save and collect what you build
- Share links and class QR codes
Tomorrow's lesson is sitting right here.
Open a tool, hand out a worksheet, or build your own tonight — try it all before you ever sign in.
Keep counting
Everything, organized the way you look for it
The whole library — by grade, by topic, by skill — plus every classroom tool.
By subject & grade
- Math · preschool · Practice
- Math · kindergarten · Practice
- Math · grade 1 · Practice
- Math · grade 2 · Practice
- Math · grade 3 · Practice
- Reading & Writing · preschool · Practice
- Reading & Writing · kindergarten · Practice
- Reading & Writing · grade 1 · Practice
- Reading & Writing · grade 2 · Practice
- Science · kindergarten · Practice
- Science · grade 1 · Practice
- Logic · preschool · Practice
- Logic · kindergarten · Practice
- Visual & Spatial · kindergarten · Practice
- Visual & Spatial · grade 1 · Practice
Seasonal & holidays
Browse all topics →Worksheets by topic
- 4th of July
- Accessories
- Activities
- Animals
- Around the House
- At the Supermarket
- Bakery
- Beach
- Birds
- Birds 2
- Body Parts
- Breakfast
- Camping
- Christmas
- Classroom
- Clothing
- Colors
- Desserts and Sweets
- Dinosaurs
- Easter
- Emotions
- Farm Animals
- Flowers
- Forest Creatures
- Fruits
- Furniture
- Hospital
- Insects and Bugs
- Kitchen Tools
- Miscellaneous
- Music
- Occupations
- Ocean Life
- Pets
- Post Office
- Reptiles and Amphibians
- Shapes
- Space
- Spring
- Summer
Worksheets by exercise type
- Addition
- Picture Sudoku
- Cryptogram
- Picture Trail
- Subtraction
- Code Addition
- More Or Less
- Math Puzzle
- Math Worksheet
- Big Or Small
- Chart Count
- Pattern Train
- Pattern Worksheet
- Bingo
- Grid Match
- Matching
Worksheets by grade
Browse all topics →Classroom tools
- Ten Frame
- Number Line
- Ruler
- Sound Boxes
- Blending Board
- Letter Tiles
- Calendar Wall
- Number Talk Easel
- Rekenrek
- Class Timer
- Name Sticks
- Center Board
- Learning Clock
- Place Value Lab
- Picture Word Wall
- Hush Owl
- Which One Doesn’t Belong?
- Story Line
- Fraction Kitchen
- Measurement Bench
- Money Mat
- Choral Counting
- Our Day
- Heart Words
- Syllable Splitter
- Estimation Jar
- Feelings Check-In
- Letter Studio
- Open Number Line
- Number Bonds Board
- Dictation Desk
- Say It Board
- Sorting Hoops
- Number Balance
- Pattern Bench
- Reading Easel
- Class Graph
- The Folding Sheet
- The Number Sieve
- The Arrow Strip
- The Draw Bag
- The Lids
- The Unit Handle
- All the Way Round
- The Planks
- Upright and Flat
- The Blueprint
- The Exchange Machine
- The Baking Tray
- The Times Shelf
- The Counting Cups
- The Number Hotel
- The Number Drum
- The Landing Strip
- The Rounding Hill
- The Pair Gate
- The Doubling Mirror
- The Missing Question
- The Gap
- The Shape Stretcher
- The Counting Line
