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UFLI Foundations · Suffixes & Prefixes

Lesson 99: Suffixes; -s/-es

Lesson 99 is lesson 119 of 148 in the UFLI Foundations sequence, in the Suffixes & Prefixes unit, starting on page 278 of the manual.

In short

Lesson 99 teaches Suffixes; -s/-es. It comes after Lesson 98 (kn /n/, wr /r/, mb /m/) and before Lesson 100 (-er, -est). Teach it from the manual, then record the date, the minutes and one rating of how it went.

What to record after teaching it

  • The date and the minutes. That is the instruction log.
  • One rating, seen cold at the start of the next session: Needs support, Developing or Secure.
  • Whether Suffixes; -s/-es needs to come back: next session for Needs support, after about three sessions for Developing.
  • A one-line note only if something surprised you.

The Suffixes & Prefixes unit

8 lessons. This one is 1 of 8.

  1. Lesson 99: Suffixes; -s/-es
  2. Lesson 100: -er, -est
  3. Lesson 101: -ly
  4. Lesson 102: -less, -ful
  5. Lesson 103: Prefixes; un-
  6. Lesson 104: pre-, re-
  7. Lesson 105: dis-
  8. Lesson 106: Affixes Review

Practice this pattern

Inflected endings: -s, -es, -ed, -ing. A few original practice words:

  • wishes
  • benches
  • glasses
  • lunches
  • rested
  • landed
Word list, sentences and warm-ups 

Questions people ask

Is this the official UFLI Foundations Lesson 99?
No. This page gives the lesson's name, concept, unit and place in the sequence so you can plan and track. The lesson itself is in the UFLI Foundations manual, which you teach from. Literacy Trail is not affiliated with the University of Florida Literacy Institute.
Can a student start here?
Yes, if they read and spell the concepts of the earlier lessons reliably. Start one or two lessons before the first shaky one, which may mean Lesson 98, and mark the earlier lessons as already taught so the record reads correctly.
What if Suffixes; -s/-es does not stick?
Teach the next lesson anyway and bring this concept back for two minutes at the start of the next session. Two Needs support ratings in a row on it means change the approach (build it, write it, then read it) rather than repeat the lesson.

Third-party curriculum names are the property of their respective owners. Literacy Trail is an independent planning and progress-tracking tool and is not affiliated with or endorsed by the University of Florida Literacy Institute or any other publisher. It contains no UFLI lesson content, only lesson names and order.

Literacy Trail is an independent tool and is not affiliated with or endorsed by the University of Florida Literacy Institute. It contains no UFLI lesson content, only lesson names and order.

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