Reading Charts and Simple Data
This lesson focuses on understanding common chart types (line, bar, pie) and tables. You'll practice identifying data points, using Japanese expressions for increases, decreases, and proportions, and answering comprehension questions based on real-world graphs and data sets.
🎯 Goal: Read and interpret simple charts, tables, and data presented in Japanese.
Lesson Content
Learning Goal
By the end of this lesson, you will be able to read and understand simple charts, tables, and data in Japanese, including labels like "increase" (増加, zōka), "decrease" (減少, genshō), and "percentage" (パーセント, pāsento).
Concept
In Japanese, charts and tables often use specific vocabulary and sentence patterns to describe trends, comparisons, and quantities. The key is to recognize the labels (e.g., 増加, 減少, 横ばい) and how to express changes over time or differences between items. You'll also encounter common phrases like "〜は〜より多い" (...wa ...yori ōi, "...is more than...") and "〜が〜パーセント" (...ga ...pāsento, "...is ...percent").
Step-by-Step Breakdown
1. Key Vocabulary for Charts and Data
Learn these essential words first:
| Japanese | Romaji | English |
|---|---|---|
| 増加 (ぞうか) | zōka | increase |
| 減少 (げんしょう) | genshō | decrease |
| 横ばい (よこばい) | yokobai | flat / no change |
| パーセント | pāsento | percent |
| 割合 (わりあい) | wariai | proportion / ratio |
| 多い (おおい) | ōi | many / much |
| 少ない (すくない) | sukunai | few / little |
| 比べる (くらべる) | kuraberu | to compare |
2. Reading Simple Tables
A table in Japanese often has:
- 項目 (こうもく, kōmoku) = item / category
- 数値 (すうち, sūchi) = numerical value
- 合計 (ごうけい, gōkei) = total
Example table:
| 項目 | 2020年 | 2021年 | 2022年 |
|---|---|---|---|
| りんご | 100 | 120 | 150 |
| みかん | 80 | 70 | 60 |
To read it: "2021年のりんごは120です" (2021-nen no ringo wa 120 desu) = "Apples in 2021 are 120."
3. Describing Trends (Increase / Decrease / Flat)
Use these patterns:
- 〜は増加している (...wa zōka shite iru) = "...is increasing"
- 〜は減少している (...wa genshō shite iru) = "...is decreasing"
- 〜は横ばいだ (...wa yokobai da) = "...is flat"
Example: "2020年から2022年まで、りんごの数は増加している" (2020-nen kara 2022-nen made, ringo no kazu wa zōka shite iru) = "From 2020 to 2022, the number of apples is increasing."
4. Comparing Quantities
Use:
- AはBより多い (A wa B yori ōi) = "A is more than B"
- AはBより少ない (A wa B yori sukunai) = "A is less than B"
Example: "りんごはみかんより多い" (Ringo wa mikan yori ōi) = "Apples are more than oranges."
5. Expressing Percentages
Use:
- 〜が〜パーセントを占める (...ga ...pāsento o shimeru) = "...accounts for ...percent"
- Or simply: 〜は〜パーセントだ (...wa ...pāsento da)
Example: "りんごは全体の40パーセントを占める" (Ringo wa zentai no 40 pāsento o shimeru) = "Apples account for 40 percent of the total."
Mini Examples
-
Table reading
表を見てください。2022年のりんごは150です。
Hyō o mite kudasai. 2022-nen no ringo wa 150 desu.
"Look at the table. Apples in 2022 are 150." -
Trend description
みかんの数は減少しています。
Mikan no kazu wa genshō shite imasu.
"The number of oranges is decreasing." -
Comparison
りんごはみかんより多いです。
Ringo wa mikan yori ōi desu.
"Apples are more than oranges." -
Percentage
りんごは全体の60パーセントです。
Ringo wa zentai no 60 pāsento desu.
"Apples are 60 percent of the total."
Common Mistake
Mistake: Using 増加 (zōka) as a verb directly without する.
- ❌ "りんごは増加。" (Ringo wa zōka.)
- ✅ "りんごは増加している。" (Ringo wa zōka shite iru.)
Why: 増加 is a noun meaning "increase." To say "is increasing," you need 増加する (zōka suru) or 増加している (zōka shite iru).
Quick Practice
-
Fill in the blank:
2020年から2022年まで、りんごの数は____している。 (increase)
Answer: 増加 -
Translate to Japanese:
"Oranges are less than apples."
Answer: みかんはりんごより少ない。
Summary and Next Step
You now know how to:
- Read basic table data (e.g., 項目, 数値)
- Describe trends (増加, 減少, 横ばい)
- Compare quantities (AはBより多い/少ない)
- Express percentages (〜パーセント)
Next step: Practice with real Japanese charts from news sites (e.g., NHK News Web Easy) or simple surveys. Try reading a weather chart or a sales graph using the vocabulary from this lesson.
Practice Drills
Lesson Materials
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