If you’re into Montessori or just want a hands-on way to help kids learn letter sounds and writing, this Adena set is fantastic. It includes 16 green wooden boards, each with a different two-letter phonogram sandpapered on: ai, ar, au, ch, ee, er, ie, oa, oo, or, ou, oy, qu, sh, th, and ue. The idea is super tactile – kids trace the rough letters with their fingers, which helps build muscle memory for the shapes and the correct writing direction. The boards have space on the sides for little hands to hold them steady. It’s a natural next step after single sandpaper letters, introducing common English sound combinations (phonograms) that aren’t spelled with just one letter. Great for homeschoolers, preschools, or parents wanting to support early literacy. The set helps with visual recognition, sound association, and even pre-spelling skills. Boards are about 10.2 x 7.5 inches for the larger ones and 8.7 x 4.7 inches for the smaller ones, and they’re sturdy. A classic Montessori material that makes learning engaging and multisensory.