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Grade 1 · Data

Weather-chart stickers: read three picture counts

A survey display at a weather chart records three category counts: 10 sun stickers, 1 sun sticker, and 5 sun stickers. Change the controls and explain what the animation reveals.

Predict what will happen, press Play, then pause and explain what changed. Every control also works without playback.

Watch the relationship

Paused
Weather-chart stickers: read three picture counts. Items represented now: 0. Final total: 16. Largest final count: 10Final counts: 10, 1, 50A0B0CAll three bars use the same vertical scale.
Counts are fictional nonnegative whole numbers. Categories do not overlap, and each observation contributes to exactly one category. All bars start at zero and share one vertical scale.

Starts paused. Play once, pause anywhere, or use Step to inspect the mathematics. Playback stops when this panel leaves the screen.

Make it your experiment

Change one value. Notice what follows.

The controls adjust the model. Numbers below describe the current frame. Decimals are rounded.

Items represented now
0
Final total
16
Largest final count
10

HD animation studio

From experiment to screen.

Present a crisp Canvas scene, save a full-HD image, or capture your model as a silent video.

Understand what you are seeing

The idea behind the motion.

A survey display at a weather chart records three category counts: 10 sun stickers, 1 sun sticker, and 5 sun stickers. A bar graph compares category counts using a common baseline and a common vertical scale. The height represents a count; the width of a bar is decoration and does not represent another variable. The largest final category has 10, the smallest has 1, and all categories together contain 16.

A relationship to keep

Total = 10 + 1 + 5 = 16

Read the symbols alongside the explanation. A diagram shows the relationship; the assumptions tell you when it applies.

  1. STEP 1

    Read the starting situation

    A survey display at a weather chart records three category counts: 10 sun stickers, 1 sun sticker, and 5 sun stickers. Identify what each number measures before changing a control; the worked example refers to these starting values.

  2. STEP 2

    Follow the mathematical change

    Advance the timeline to add the observations to their three categories. Compare the live counts, then inspect the final bar heights on the shared scale. Pause on an intermediate frame and compare the picture with the live readouts.

  3. STEP 3

    Explain and test the relationship

    The largest final category has 10, the smallest has 1, and all categories together contain 16. Change one input, predict its effect, and test whether the same relationship still works.

Your turn to explain

Make a prediction. Test your reasoning.

Weather-chart stickers: use the original situation. A survey display at a weather chart records three category counts: 10 sun stickers, 1 sun sticker, and 5 sun stickers. How many observations separate the largest and smallest final categories?

Use the values specified in the question. Reset restores the initial values for this investigation.

Compare your explanation

9 observations, found by subtracting 1 from 10. The sum answers a different question.

Work through a full lesson

Connect the animation to a worked example and practice questions.

Grade 1 · Statistics

Read a one-picture graph

Read a picture graph when each picture means one item.