Learning Resources Alphabet Acorns Activity Set. This fun acorn-themed activity set supports a variety of early literacy and alphabet skills! Develops alphabet awareness and early phonics skills as young learners match uppercase acorns with their lowercase lids. Inside they will find a colour-coordinated counter that corresponds to the letter. Includes 26 two-piece acorns, 26 colour-coded counters and a multilingual activity guide. Largest piece (acorns) measures 6cm H x 5cm L. Suitable for ages 3+.