Supplemental Materials
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Cycle 1: Letter Frequency
Cycle 2: Distinctive Letter Features
Cycle 3: ABC Order
Cycle 4: Letter Name/Sound Relationship
Cycle 5: Speech/Sound Development
Cycle 1: Letter Frequency
Cycle 2: Distinctive Letter Features
Cycle 3: ABC Order
Cycle 4: Letter Name/Sound Relationship
Cycle 5: Speech/Sound Development