For practice, make a tiny fictional table of weekly reading time: Monday twenty minutes, Tuesday thirty, and Wednesday fifteen. Label it as invented practice data. Start your explanation with the measure and period: "This table shows my example reading time over three days."
Identify the main pattern before listing every number: "Tuesday has the highest total, while Wednesday has the lowest." Then support the statement: "Tuesday is fifteen minutes higher than Wednesday."
Distinguish a pattern from its cause
The table does not show why the time changed. You can say, "Wednesday may have been busier, but the table does not tell us." Avoid presenting a plausible story as a fact simply because it sounds persuasive.
Check the unit carefully. Minutes, hours, percentages, and numbers of sessions are different measures. If a chart begins above zero or covers only part of a year, describe that scope instead of implying it represents a complete long-term trend.
Record a thirty-second explanation, then compare it with the actual values. Ask whether each comparison is accurate and whether an unfamiliar listener would know what is being measured. Extend the exercise with another day and revise the main pattern if necessary. Practicing the revision helps you respond to changed evidence rather than memorizing one confident description.