These cards can be used as a stand alone NOTEBOOK file or inserted into an activity (for example, into a "morning message/circle" file as the "word of the day," or in a science lesson to introduce new vocabulary, etc.).
The teacher uses the stencil to create the word they want written, then locks down those selected tiles. To limit distraction, a teacher can then use the screen shade tool to cover the source letters.
This card can be cloned, copied, and used ad infinitum throughout the school year. In addition, multiple cards can be linked together to create vocabulary lists, word walls, or similar style presentations.
I've included a few sample ideas for extensions after the pages. Enjoy!