A little sudoku-like app for helping first-graders practice addition
0ad2dbcd — Kartik K. Agaram 13 days ago
Merge template-live-editor-mobile
8bbb0dfe — Kartik K. Agaram 13 days ago
Merge template-live-editor
ff0d6439 — Kartik K. Agaram 13 days ago
Merge text0


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You can also use your local clone with git send-email.

#App for drilling addition problems

Uses sudoku-like "sum grid" puzzles.


This repo is an example of a Freewheeling App, designed above all to be easy to run, easy to modify and easy to share.

#Getting started

Install LÖVE. It's just a 5MB download, open-source and extremely well-behaved. I'll assume below that you can invoke it using the love command, but that might vary depending on your OS.

Run this app from the terminal, passing its directory to LÖVE


To modify it live without restarting the app each time, download the driver app. Here's an example session using a different freewheeling app:

making changes without restarting the app

Some reference documentation on how to create your own apps.

If the app being modified by the driver lives in a .love file, your changes will go into the save directory. If it lives in a directory (like this repo), your changes will go straight into the same directory.

#Keyboard shortcuts

  • ctrl+n to generate a new problem
  • ``` to reveal/hide the solution (I should probably disable this before putting it in front of the kids.)

Exclusively tested so far with a US keyboard layout. If you use a different layout, please let me know if things worked, or if you found anything amiss: http://akkartik.name/contact

#Known issues

  • Both freewheeling apps and the driver for them currently benefit from being launched in terminal windows rather than by being clicked on in a desktop OS. See the driver app for details.

#Mirrors and Forks

This repo is a fork of lines.love, an editor for plain text where you can also seamlessly insert line drawings. Its immediate upstream is the template repo for freewheeling apps. Updates to it can be downloaded from the following mirrors:

Further forks are encouraged. If you show me your fork, I'll link to it here.


Most appreciated.