Isabel Simmons helps children learn about the digraphs sh and ch. Isabel Simmons shows children how to build, spell, and read words with the digraphs sh and ch. Digraphs are two letters that represent ...

A recent New York Times article threatens to revive longstanding misconceptions about phonics. Teaching children to sound out words in a way that’s backed by science shouldn’t carry political baggage.

Anna Scretching-Cole teaches about the diagraphs th and wh. Anna Scretching-Cole teaches about the diagraphs th and wh by writing and spelling words. Digraphs are two letters that represent one sound.

In this paper, we prove that all but one of the components of the transfer digraph D m * needed for the enumeration of 2-factors in the rectangular, thick cylinder and Moebius strip grid graphs of the ...