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7th grade · English Language Arts · Unit 13 of 13

Spelling: Prefixes and Patterns

-cede or -ceed, double letters and plurals

What your child practices

Children practice US spelling: -cede, -ceed and -sede, prefixes and suffixes that create double letters, -able and -ible, irregular plurals and commonly misspelled words.

Alaska content standards learning standard: L.7.2 · spelling correctly with prefix, suffix and plural rules

How we explain it

Children can open this short lesson before they practice.

  1. Only one word ends in -sede (supersede), three in -ceed (exceed, proceed, succeed). The rest end in -cede (precede).
  2. Adding a prefix never drops a letter: un + necessary = unnecessary.
  3. Learn double letters in tricky words: accommodate (two c’s, two m’s), recommend (one c, two m’s).

Example: Add un- to “necessary.” Which spelling is correct? Keep every letter of both parts. un + necessary gives two n’s. Answer: unnecessary

Spelling: Prefixes and Patterns in Alaska

In the Alaska content standards, this is unit 13 of 13 in 7th grade English Language Arts, after Framing the Message.

Gradelings describes a child's practice on this unit as Beginning, Approaching, Meeting or Exceeding (Four practice steps). That reflects practice, not a report-card mark: the teacher decides the mark.

Source: Alaska Department of Education and Early Development

Sample questions

A taste of this unit. In the app, questions change every time and get easier or harder to match your child.

  1. Question 1

    Which word is spelled correctly?

    • accomodate
    • acomodate
    • acommodate
    • accommodate

  2. Question 2

    Add il- to “legal.” Which spelling is correct?

    • illegel
    • ileagal
    • ilegal
    • illegal

  3. Question 3

    What is the plural of “piano”?

    • pianose
    • pianos
    • piannos
    • pianoes

  4. Question 4

    Which word is spelled correctly?

    • resposible
    • responsibel
    • responsable
    • responsible

  5. Question 5

    Which word is spelled correctly?

    • independant
    • independint
    • indipendent
    • independent

  6. Question 6

    Which word is spelled correctly?

    • irresistable
    • iresistible
    • irrisistible
    • irresistible

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