South Dakota ELA 11-12.RST.2.a
The Standard
- 11-12.RST.2
- Determine the central ideas of a text.
Analyze and evaluate the text’s development of a complex process, phenomenon, or concept.
South Dakota English Language Arts Standards (2025)
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students follow how a science or technical text builds an explanation, not just name its topic. They track how the parts connect and judge whether the details make the process or idea clear.
What Mastery Looks Like
- A student can show how each part of the explanation builds on the last, using details from the text. They can point to a missing link or weak explanation and say how it affects the reader's understanding.
Common Misconceptions
- Students may list steps without explaining how one leads to the next. They may call a passage clear because it has a diagram or technical words, even when it skips a cause or leaves a key term unexplained.
How to Assess It
- Hand out a one-page explainer on lithium-ion battery charging. Ask students to connect three steps, then cite one place where a missing detail makes the process hard to follow.
Lesson moves
Ways to Teach It
Give pairs wastewater treatment articles and index cards; have them sort the stages and mark a missing link in the explanation.
Ask students to write: 'How does the author connect ocean warming to coral bleaching, and what explanation is still missing?'
Play a three-minute find-the-gap game with a paragraph on gene editing; teams score by naming an unexplained transition and drafting a fix.
Have students read a city water treatment explainer, trace water from intake to tap, and mark one step needing more detail.
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Printable 11-12.RST.2.a Worksheet

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Related Standards
- 11-12.RI.2.a
Analyze and evaluate their development over the course of the text, including how they interact and build on one another within a complex text.
- 11-12.RL.2.a
Analyze and evaluate their development over the course of the text, including how they interact and build on one another within a complex account.
- 9-10.RST.2.a
Analyze the text’s development of a complex process, phenomenon, or concept.
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