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Skill Explainer

1. Overview of Spelling with 'c' vs. 'k'

Spelling with 'c' vs. 'k' Skill Explainer

How Do Students Know Whether to Spell /k/ with 'c' or 'k'?

Rule #1: When the /k/ sound is followed by a vowel …

  • Use 'c' when the /k/ sound is followed by 'a', 'o', or 'u'. (Like in the word cap or cake.)
  • Use 'k' when the /k/ sound is followed by 'e', 'i', or 'y'. (Like in the word kept or kite.)

Rule #2: When the /k/ sound is part of a blend …

  • Use 'c' when the /k/ sound is followed by a consonant. (Like in the word fact.)
  • Use 'k' when the /k/ sound is the last letter in the word. (Like in the word desk.)
Video thumbnail for Quick Look: How to Remember 'c' vs. 'k'
Produced by Reading Universe, a partnership of WETA, Barksdale Reading Institute, and First Book
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Students: 'c', cat, /k/ ... 'k', kite /k/ ...

Ashton Smith: Wait a minute ...

Students: 'c', cat, /k/ ... 'k', kite /k/ ...

Students: /k/, /k/ ...

Ashton Smith: Do they make the same sound?

Students: Yes!

Ashton Smith: Great. Okay, so how do we know when to use it? Let's see.

Student: Curvy 'c' goes with curvy 'a', curvy 'o', curvy 'u' ... and straight 'k' goes with straight 'i', straight 'e', straight 'y' ...

Ashton Smith: Very nice, very nice.

Reading Universe is made possible by generous support from Jim & Donna Barksdale; the Hastings/Quillin Fund, an advised fund of the Silicon Valley Community Foundation (opens in new window); the AFT (opens in new window); the Emily Hall Tremaine Foundation (opens in new window); and three anonymous donors.