Chart assignment

Charts to read and discuss

Read each chart, then answer its questions. Every chart shows its source and date; open it for a table of the numbers and the data to download.

  1. Which national parks grew fastest over 10 years?
  2. How fast are US prices rising?

Chart 1 of 2 · National parks

Which national parks grew fastest over 10 years?

The interactive chart needs JavaScript. The numbers are on the chart's page.

Over the 10 years to 2025, Redwood's recreation visits grew 128%, the most of the parks compared. Hot Springs (76%), Kings Canyon (67%), Pinnacles (66%) and New River Gorge (66%) came next. Only parks with at least 100,000 visits in the first of those years are compared. A sudden one-year jump can come from a change in how a park counts visitors, not only from more visitors.

Questions to discuss

  1. In one sentence of your own, what does this chart show?
  2. Find the biggest change or difference in the chart. What might explain it?
  3. Who collected these numbers, and how recent are they? What else would you want to know before drawing a conclusion?

Source: National Park Service, Visitor Use Statistics (Public domain (U.S. government work); source National Park Service) · Data as of Dec 31, 2025

Open the chart and its numbers

Chart 2 of 2 · Inflation

How fast are US prices rising?

The interactive chart needs JavaScript. The numbers are on the chart's page.

The inflation rate was 3.7% in September 2026: how much consumer prices changed from the same month a year earlier. Each point makes that comparison, back to 1914, the first year BLS can compare. Inflation peaked at 23.7% in June 1920 and at 14.8% in March 1980; the 9.1% of June 2022 was the highest since 1981. Prices fell as fast as 15.8% a year in 1921 and 10.7% in 1932. BLS collected no prices in October 2025, during a lapse in federal funding, so that month and October 2026 are missing.

How to read this chart

Each point compares consumer prices in a month with the same month a year earlier. A value of 3 means things cost about 3% more than a year before; below zero means prices fell. The chart shows how fast prices change, not how high they are.

Questions to discuss

  1. Find two times when inflation was highest. What was happening in the country then?
  2. If inflation falls from 8% to 3%, are prices going down, or just rising more slowly?
  3. Find a stretch when the line is below zero. Why might falling prices be bad news for workers and businesses?

Source: U.S. Bureau of Labor Statistics, Consumer Price Index (CPI-U, all items) (Public domain (U.S. government work)) · Data as of Sep 30, 2026

Open the chart and its numbers

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