Abstract: A machine presents a graphical user interface that depicts a word that includes a first letter and a second letter. The machine detects a drag speed of a touch input on a touch-sensitive display screen and determines that the drag speed falls into a first range of drag speeds among multiple ranges of drag speeds. Based on the drag speed falling into the first range, the machine selects whether the word is to be pronounced by sequentially playing at least a first audio file and a second audio file, where the first audio file records a first phoneme for the first letter, and the second audio file records a second phoneme for the second letter. Accordingly, the machine provides a speech synthesizer that pronounces the word at a pronunciation speed based on the drag speed, with enhanced clarity at slower speeds, and with enhanced smoothness at higher speeds.

Abstract: A system for teaching is disclosed, comprising a symbol identification dock and a plurality of symbol manipulatives, a computing device connected to the symbol identification dock, and a database, wherein the database comprises lexical data and an adaptive learning curriculum.

Abstract: A system for teaching is disclosed, comprising a symbol identification dock and a plurality of symbol manipulatives, a computing device connected to the symbol identification dock, and a database, wherein the database comprises lexical data and an adaptive learning curriculum.