Fill the Tank!

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Fill the Tank!

Predict and test
Enter a number
Choose from three courses

What is this game?

Predict how long to run the water or how many taps to use.
Start the experiment and compare the results.

Let’s give it a try!

送信中です

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ChicodoriLearning is an adventure.

Math · Direct & inverse proportion

Fill the Tank!

Explore how taps and time work together.
Fill the tank to exactly the target!

MISSION 01/ 05
    0/ 15
    WATER LABTake your time.
    Per tapper second 2 L
    Water tankSee how much water your predicted time or number of taps produces. Target 12 L 0 L

    Predict, then press Start!

    Number of taps1 taps
    Elapsed time0 s
    Water collected0L

    Every tap has the same flow rate.
    The experiment plays faster than real time.

    Direct mission

    Target water amount

    12LFill to
    the target!

    Known conditions

    Flow per tapper second 2L
    Taps used1 taps

    s

    Use a whole number from 1 to 60.

    Aim for exactly the target amount.

    DirectWith 2 or 3 times the time,
    you get 2 or 3 times the water.

    InverseWith 2 or 3 times as many taps,
    the filling time is ½ or ⅓.

    CHICODORI MATH LAB

    Discover how the quantities change.

    HOW TO PLAY

    Predict, then try it.

    1. Choose a course

      Choose Direct, Inverse or Mixed.

    2. Enter a prediction and start.

      Read what stays the same. Enter your prediction and press Start.

    3. Check, then try the next mission.

      Check the result. Try again, or go to the next mission.

    Direct proportion: Time and amount of water.
    With the same tap, twice the time gives twice the water.

    Inverse proportion: Number of taps and time needed.
    With the same target amount, twice as many taps take half the time. Each comparison tank stops automatically at the target.

    Up to 3 stars per mission: 3 on the first try, 2 on the second, or 1 after using a hint or taking more tries.

    Direct course

    Mission complete!

    You completed the course!
    What relationships did you notice?

    15/ 15

    How to play

    1. Choose Direct, Inverse or Mixed.
    2. Read the conditions. Enter the time or number of taps, then press Start.
    3. Check the water or filling times. Try again, or choose Next mission.
    For parents and teachers

    Direct proportion compares time and water at a fixed flow rate. Inverse proportion compares the number of taps and time needed for a fixed amount of water. Comparison tanks start on the same clock and stop at the same target. The animation runs faster than real time.

    Direct and Inverse have five questions each; Mixed has six. A first-try answer earns three stars, a second try earns two, and using a hint or taking further tries earns one. Original question settings and scoring are unchanged.

    Tell us what you tried!

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    If a name looks like a real name, we may change it to a nickname.

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