Lesson 20   The prefix ex

ex + tract	= extract
ex + tra	= extra
ex + treme	= extreme
ex + tent	= extent
ex + terior	= exterior
ex + ternal	= external
ex + tinguish	= extinguish
ex + terminate	= exterminate
ex + travagant	= extravagant
ex + pect	= expect
ex + pense	= expense
ex + periment	= experiment
ex + perience	= experience
ex + piration	= expiration
ex + pert	= expert
ex + pedition	= expedition
ex + pression	= expression
ex + plode	= explode

1.	In how many words is the prefix ex followed by the letter t? _____ In how many words is the prefix ex followed by the letter p? _____
2.	Is the prefix ex followed by the letter s in any of the words? _____
3.	When the prefix and root are joined, is the letter x doubled in any of the words? _____

Lesson Generalization The prefix ex means "out" or "beyond." It is added directly to roots beginning with the letters t or p. The letter x is never doubled. No commonly used words begin with the letters exs. The letter x itself makes the sound of s or z. Mnemonic device: X marks the spot between the prefix and root. Don't add any ex-tra letters!

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Grade 6 Spelling SkillBuilders