Use as flashcards, make small coloring "books" from the black and white sets or use them for three part cards! (Most of these sets are strategically laid out in three part card arrangement to enable future extension exercises. In our preschool homeschool, we'll be cutting these into three part cards next year to reuse them for spelling and word match exercises).
These flashcards were designed to accompany my Preschool Homeschool "The Complete Year" 45 Lesson Plans Mega Pack but you may of course use these however you wish!
I use art primarily by Whimsy Clips by Laura Strickland with secondary sources including Teacher Scrapbook, Dancing Crayon Designs, and Graphics by the Pond (links all included in the information page within the document). I also use digital paper from PrettyGraffic and Erin Bradley Designs for my title pages. I use fonts by KG Fonts and Pablo Impallari.