Our business model is to provide nearly free teaching materials for use in the classroom. By
nearly free we mean that all of the teaching materials we provide
will always be free to use in the classroom, no matter who buys them. This is assured because our materials
specify this directly in the copyright.
This business model is designed and intended specifically to help teachers.
This business model, however,
sacrifices potential sales and
may not prove viable.
Patreon subscriptions provide a chance for those who value our materials to offer on-going support in
exchange for new materials that are not otherwise available.
Our patrons are
permitted and
encouraged to lend any of our education materials they obtain from their subscriptions
to teachers for use with their classes.
Visit our
Patreon page HERE
and become a supporter today!
Our goal for subscription revenue is to hire the technical talent needed to to add additional
benefits to all patron subscription levels.
We have many exciting plans for ways to help teachers in the future!
Each monthly subscription level provides benefits
in addition
to all the benefits found at the lower levels.
- 3$ per month:
- Get access to Patron-only posts with news and more!
-
Enjoy puzzles free of advertisements. The web site is currently ad-free for a time as part of our long-delayed promotional launch.
This subscription level is, however, the easiest way to show support right now,
and will earn additional benefits in the future
- 7$ per month
-
Receive a PDF eBook of new puzzles each month. This PDF is a self-contained eBook complete with all the information normally
found on our web-site for print books, including step-by-step solutions for every puzzle.
Print ONLY THE PUZZLE PAGE you want to work. Every book in each series is more than 500 pages!
Each book will be a new volume from one of 4 different book series.
Each series contains puzzles of a particular size, varying from 5 through 8,
and are intended for a grade school audience.
Moreover, most of the
puzzles types contained in each eBook are not found in the normal
tri-weekly rotation of puzzles on our web site. See the
group puzzle compendium
for the complete listing of all of the currently defined Group Puzzle types.
The initial volume of each series is linked below.
As part of our Patreon launch promotion, the initial volume of each series has a special copyright addendum
that allows you to not only share with teachers (as always), but to also freely share it with everyone in any way.
-
Sudoku Size 5 Variants
-
Sudoku Size 6 Variants
-
Sudoku Size 7 Variants
-
Sudoku Size 8 Variants
- 12$ per month
-
Receive a second PDF eBook of new puzzles each month This PDF is also a self-contained eBook complete with all the information normally
found on our web-site for print books, including step-by-step solutions for every puzzle.
Print ONLY THE PUZZLE PAGE you want to work. Every book in each series is more than 500 pages!
Each book will be a new volume from one of 5 different book series.
Each series contains larger puzzles than are available at the Patreon level shown above,
with group sizes 9 through 16, and are intended for older students and adults.
The larger
quilted puzzles are also featured in these books. The initial volume of each series is linked below.
As part of our Patreon launch promotion, the initial volume of each series has a special copyright addendum
that allows you to not only share with teachers (as always), but to also freely share it with everyone in any way.
-
Sudoku Variants
-
Simpler Sudoku-by5 Variants
-
Harder Sudoku-by5 Variants
-
Simpler Advanced Sudoku Variants
-
Harder Advanced Sudoku Variants
Why Patreon?
Patreon provides key technical support that is not part of our mission:
- Most importantly,
Patreon provides us with secure payment processing. We leave payment processing to the professionals so that hackers have no financial incentive to go after our web site. This keeps our focus on providing educational materials.
- Patreon also provides technical support for tracking subscription levels.
They can provide real-time customer services for important issues that are not directly related to our educational mission.
This includes tracking premium content distribution for subscription levels.
We are counting on subscription revenues to make up for any
loss of sales due to our commitment to teachers that they
can always use any of our material in their classes. Many features under
consideration require additional technical talent which requires a sustained revenue stream.
We plan to consider other funding options, like Kickstarter or go-fund-me, for specific one-time projects.