Texas Essential Knowledge and Skills (TEKS):
4.2.A*
demonstrate and apply phonetic knowledge by:
(i) decoding words with specific orthographic patterns and rules, including regular and irregular plurals;
(ii) decoding multisyllabic words with closed syllables; open syllables; VCe syllables; vowel teams, including digraphs and diphthongs; r-controlled syllables; and final stable syllables;
(iii) decoding words using advanced knowledge of syllable division patterns such as VV;
(iv) decoding words using knowledge of prefixes;
(v) decoding words using knowledge of suffixes, including how they can change base words such as dropping e, changing y to i, and doubling final consonants; and
(vi) identifying and reading high-frequency words from a research-based list;
Texas Essential Knowledge and Skills (TEKS):
4.3.C
determine the meaning of and use words with affixes such as mis-, sub-, -ment, and -ity/ty and roots such as auto, graph, and meter; and
Florida - Benchmarks for Excellent Student Thinking:
ELA.4.V.1.2
Apply knowledge of common Greek and Latin roots, base words, and affixes to determine the meaning of unfamiliar words in grade-level content.
4th Grade Reading - Roots & Affixes Lesson
Roots & Affixes
Words are built from meaningful roots and affixes.
Roots are the basic units of meaning of words. Many roots can stand alone as words.
Affixes are word parts added to root words to build on or change their meanings.
4th Grade Reading - Roots & Affixes Lesson