Ohio State Tests/EOC study materials
Ohio State Tests/EOC study resources

Ohio State Tests/EOC common mistakes

Ohio State Tests/EOC · Understand the traps and how to avoid them.

Mistake 1

Writing a paragraph-length answer to an informational or argumentative writing prompt and then stopping, without including a claim or controlling idea stated near the beginning.

The extended-writing prompts are scored with a rubric that rewards a clear, sustained controlling idea; candidates often treat the prompt as a short-answer question and simply list facts they remember about the topic, so the reader must infer the point.

What to do instead

Before drafting, write one sentence on scratch paper that states your claim or central idea, then check that every body paragraph connects back to it. Put that sentence as the first or second sentence of the response so the scorer can locate it immediately.

Mistake 2

Quoting or paraphrasing evidence in an analysis response but never explaining how the evidence supports the claim.

Candidates are trained to include quotes and assume the quote speaks for itself; rubrics separate 'uses evidence' from 'explains reasoning,' and dropping in a citation feels like the safe move under time pressure.

What to do instead

After every piece of evidence, write at least one sentence beginning with 'This shows that...' or 'This matters because...' that names the specific word or detail and links it to the claim. Use a two-to-one ratio: one sentence of evidence, at least one sentence of commentary.

Mistake 3

Reading a literary passage once and answering questions from overall impression rather than returning to the lines cited in each question.

Passages feel familiar after a first read, so candidates trust memory; but inference and tone questions hinge on precise wording, and memory blurs similar-sounding details.

What to do instead

For every question that cites line numbers or a paragraph, physically reread that span plus one sentence before and after before choosing. Underline the exact word or phrase in the text that justifies the answer.

Mistake 4

Solving multi-step linear equations or inequalities and dropping the sign flip when multiplying or dividing by a negative number.

Most practice focuses on straightforward solving, and the reversal rule is easy to apply mechanically to addition and subtraction, where it does not belong, or to forget entirely under time pressure.

What to do instead

Circle any negative coefficient or divisor the moment you see it, then write the reversed symbol on the next line before continuing. Verify by substituting a test value into the original inequality.

Mistake 5

Choosing a graph or equation answer based on its shape or y-intercept without checking a second point or the slope.

Distractor choices are built to match one salient feature, such as the correct intercept but the wrong rate, and candidates stop checking once one feature matches.

What to do instead

Test each candidate against two independent features: substitute x = 0 and x = 1 (or two table values) and confirm both outputs. Eliminate any option that fails either test before selecting.

Mistake 6

Writing a final numeric answer with no units, or with units that do not match what the question asked, on a multi-step word problem.

Candidates focus on the arithmetic and treat units as decoration; multi-step problems often require a conversion or ask for a rate rather than a total, and the last computed number is not always the requested quantity.

What to do instead

Before computing, write the target quantity and its unit at the top of your scratch work (for example, 'cost per ticket, dollars'). After computing, reread the final question sentence and confirm the number and unit answer exactly that.

Mistake 7

Describing an experiment's result as 'it grew' or 'it changed' without naming the manipulated and responding variables or citing the data trend.

Candidates summarize what they saw visually rather than the relationship between variables, and rubrics for data-analysis items require identifying variables and using specific values or trends.

What to do instead

Use a fixed sentence frame: 'As [independent variable] increased, [dependent variable] [increased/decreased], as shown by [specific data points].' Practice applying this frame to every graph or table in a released-item set.

Mistake 8

Confusing a scientific explanation with a description, offering a claim with no reasoning about why the evidence supports it.

Everyday explanations often stop at what happened; constructed-response science items are scored on claim, evidence, and reasoning, and the reasoning component is the one most often omitted.

What to do instead

Structure every explanation in three labeled parts: Claim (one sentence), Evidence (specific data from the prompt), Reasoning (the scientific principle that connects them). Check that the reasoning section names a concept such as conservation of mass or natural selection, not just restates the data.

Mistake 9

Answering a document-based social studies question using only prior knowledge and ignoring the sourcing information (author, date, purpose) provided with the excerpt.

Candidates recognize the historical topic and answer from memory, but the item is testing whether they can evaluate a source's reliability or perspective, and the correct answer often depends on who wrote it and when.

What to do instead

Before answering, annotate the source line: circle the author, date, and type of document. Then ask whether the question is about what happened or about the source itself, and choose the answer that uses the sourcing details when the question asks about reliability, bias, or point of view.

Mistake 10

Treating cause and effect as one-directional in history questions, selecting an answer that lists a consequence as the cause of an earlier event.

Timelines in memory are compressed, and events that are commonly discussed together get linked in the wrong order; distractors exploit this by pairing a famous event with a plausible but later outcome.

What to do instead

Sketch a quick date line on scratch paper for any causation question, placing the events in chronological order before reading the options. Eliminate any choice where the stated cause occurs after the stated effect.