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Common Core ELA5th GradeFoundational Skills

RF.5.3: Phonics and Word Analysis

Also written as CCSS.ELA-LITERACY.RF.5.3 · Cluster: Phonics and Word Recognition.

Make Nonsense WordsAll 43 5th Grade ELA Standards

The Official Wording

Know and apply grade-level phonics and word analysis skills in decoding words.

Common Core State Standards, Grade 5, Reading: Foundational Skills · Read it at the source · Checked October 14, 2026

What RF.5.3 Means in Plain English

Fifth graders read long unfamiliar words like unpredictable or transportation by taking them apart: prefixes and suffixes off the ends, then syllables, then any root they know, with every letter sound in play. They read the word accurately whether it sits in a sentence or alone on a list.

The wording matches RF.4.3, so the growth is in the words: longer, with more Latin and Greek parts. This is the last year of phonics standards. In 6th grade the same roots and affixes become clues to meaning in vocabulary work (L.6.4).

RF.5.3 I Can Statements

  • I can break a long word into syllables to read it.
  • I can find prefixes, suffixes and roots in a word I don’t know.
  • I can read a new long word correctly in a sentence or alone.

RF.5.3 Worked Example

One long word from a science sentence, taken apart the way a strong reader does it in their head.

Problem

A student meets this sentence in a science article: “The weather on the mountain was unpredictable.” Read the long word.

Reading unpredictable by its parts
  1. It’s long, so I don’t guess from the first letters. I look for parts I know at the start and the end.unpredictable
  2. Peel off the prefix at the front. Un means not.un + predictable
  3. Peel off the suffix at the end. Able sounds like “uh-bul” and means can be.un + predict + able
  4. The middle is pre, a prefix meaning before, and dict, a root I know from dictionary. Dict means say.pre (before) + dict (say)
  5. Now say it in syllables, then blend them faster the second time.un · pre · dict · a · ble
  6. Check it in the sentence: weather you can’t say ahead of time. That makes sense on a mountain.unpredictable = not able to be told ahead of time
Answerun · pre · dict · a · ble: unpredictable, meaning impossible to tell ahead of time

Check it: Reread the whole sentence with the word in it. If it sounds like a real word and the sentence makes sense, the decoding is right.

Common Mistakes with RF.5.3

Guessing from the first letters

Reads unpredictable as “unprotected”

Try this: Cover the word and reveal it one chunk at a time, so students must read every part before saying the whole word.

Splitting syllables at random

“unp · red · ict · able”

Try this: Teach students to peel off prefixes and suffixes first, then split what is left between two consonants or after a long vowel.

Reading the parts without blending

“un, pre, dict, a, ble” and stops there

Try this: Have students say the chunks twice, faster the second time, then reread the full sentence to hear the word in place.

Where RF.5.3 Fits

Comes BeforeRF.4.3The same decoding skills, applied to 4th-grade words.
AlongsideL.5.4Use Greek and Latin roots, like photo in photograph, to work out what a word means.RF.5.4Read grade-level text accurately and fluently.
Comes NextL.6.4Use Greek and Latin affixes and roots as clues to word meaning in 6th grade.

Practice RF.5.3

Nonsense Word GeneratorFree ToolMultisyllable nonsense words leave nothing to memorize, so students have to decode every syllable by its pattern.MultisyllablePrefixesSuffixes
Make Nonsense Words
Vocabulary Worksheet GeneratorFree ToolBuild a list around one root, like dict or port, and have students split each word into its parts before defining it.Root: dictRoot: portPrefix: un
Make a Worksheet

Quick Check

  1. Split transportation into syllables.
  2. Which part of unpredictable is the root, and what does it mean?
  3. Break disagreement into its prefix, base word and suffix.

RF.5.3: Other Names

RF.5.3CCSS.ELA-LITERACY.RF.5.3

Common Core State Standards © Copyright 2010. National Governors Association Center for Best Practices and Council of Chief State School Officers. All rights reserved. Official wording from the Common Core State Standards PDFs at corestandards.org, last checked October 14, 2026. The explanation, I can statements, example, mistakes and practice on this page are EMStudio’s own, written beside the official wording. They are not part of the standard.