A simple app for teaching children about letters and how letters are combined to create words.
Most alphabet resources use "starts with" to teach about letters: "A is for apple" π, "B is for bus" π, etc. Though helpful, I have noticed that young children tend to recognize letters by prominence in a word -- for example, the g in egg is a more prominent sounding letter than the e, and a more prominent use of e might be found in tree.
To enable learning how letters are placed within words, this app lists words that contain a given letter at selected positions within a word: beginning, middle, or end.