UNIT: CATAPULT

ACT-Based English: Editing a Catapult Construction Manual

OBJECTIVE:

Students refine a poorly written instruction manual.

Materials Needed:

Sample manual with grammar errors

Editing tools

Student Directions:

Goal:

You will act as a technical editor by reviewing and revising a flawed catapult construction manual. Your goal is to improve grammar, clarity, and precision—just like professional technical writers do in engineering fields.

Step 1: Read the Manual Carefully

Read through the sample catapult construction manual from start to finish.

Pay attention to grammar, punctuation, and sentence structure.

Look for unclear instructions, missing steps, or confusing wording.

Step 2: Mark Errors and Awkward Phrasing

Use a pen, highlighter, or editing comments to:

Identify incomplete or run-on sentences

Correct spelling, capitalization, and punctuation mistakes

Mark any vague or confusing directions (e.g., “put the stick there”)

Highlight unclear sequencing (e.g., missing transition words like “then,” “next”)

Step 3: Rewrite the Manual

On a separate sheet or document:

Rewrite the manual using complete, clear sentences

Use consistent formatting for numbered or bulleted steps

Be specific in your instructions (e.g., “Attach the rubber band to the base using a paperclip” instead of “put it on”)

Ensure the order of steps makes logical sense

Include technical terms appropriately, but define them if needed

Tip: Imagine someone with no prior experience is trying to follow your directions. Will they be successful?

Step 4: Review a Classmate’s Revision

Exchange revised manuals with a partner.

Use a checklist to give constructive feedback on grammar, clarity, and technical accuracy.

Make suggestions for improvements in phrasing, formatting, or sequencing.

Step 5: Class Discussion – Why Clarity Matters

Discuss the following:

Why is precision important in technical writing, especially in engineering?

What problems could happen if instructions are poorly written or unclear?

How does strong writing support safety, accuracy, and efficiency?