Difficulty Level: At Grade Created by: CK-12

1. Underline the letters that spell [ks] in these words. Remember that in words like likes the <e> is not helping spell the [ks], so you should underline just the <k> and <s>\begin{align*}<\text{s}>\end{align*}:

mistakesremarksfoxweeksexpenseparksknockstaxestricksunmixedmechanicsjokesblinksexerciseattacksrelaxes\begin{align*}& \text{mistakes} && \text{expense} && \text{tricks} && \text{blinks} \\ & \text{remarks} && \text{parks} && \text{unmixed} && \text{exercise} \\ & \text{fox} && \text{knocks} && \text{mechanics} && \text{attacks} \\ & \text{weeks} && \text{taxes} && \text{jokes} && \text{relaxes} \end{align*}

2. Sort the words into these four groups:

3. In the left column below write out the ten words you found with [ks] spelled <ks>, <cks>, or <cs>. Then analyze each one into its free stem and suffix:

Words with [ks] spelled <ks>, <cks> or <cs> = Free stem + suffix
likes = like + s
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4. When [ks] is spelled <ks> or <cks> or <cs>, the <s>\begin{align*}<\text{s}>\end{align*} is a ______.

5. In the sixteen words you sorted out in this lesson [ks] is spelled <x> ______ times.

6. How Do You Spell [ks]? “The sound [ks] is usually spelled ______, unless the [s] is a ______.”

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