This is a work I have used for many years when teaching letter sounds. I made it by hand but times have changed and am now making and offering to you a digital version. The sequence of letters I introduce is based off the Bob books series and I always do letters in pairs so that children understand that letters make different sounds.
Children will sort between letter sounds for /s/ and /a/ using the picture mats to sort picture-to-picture and/or picture-to-letter. I have also provided tracing pages and handwriting pages to choose from. I prefer the handwriting pages but when a young child needs more assistance in learning the letter I give them a tracing page. I also added "rainbow" letters for fun, in which children can color the picture and practice writing the letter with different colored pencils.
I typically set this out with sandpaper letters and objects for children to sort and feel, as well as a card reader for children to listen to the name and beginning sound. Making the work multi-sensory!