Grade 6 · Percent
Ticket model: Find a percent of a whole
Ticket model investigation: find a percent of a whole. Change the quantities, follow the motion, and explain the result using the displayed mathematical relationship.
Predict what will happen, press Play, then pause and explain what changed. Every control also works without playback.
Watch the relationship
PausedHD 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 percentage is a ratio to one hundred. Multiplying a whole by p/100 gives the part associated with p percent. The original whole remains the reference quantity even when the highlighted part grows during playback. This investigation begins with original whole = 60; percent of whole = 20. Treat the named setting as a constructed classroom model, then explain which relationships would still hold if its numbers changed.
A relationship to keep
part = whole × percent / 100
Read the symbols alongside the explanation. A diagram shows the relationship; the assumptions tell you when it applies.
- STEP 1
Represent the given quantities
Treat the entire first bar as the original whole, not as the currently highlighted amount.
- STEP 2
Follow the changing model
Reveal the requested portion gradually. A fraction of the drawing corresponds to the same fraction of the original value.
- STEP 3
Check and explain the relationship
Divide the completed part by the whole and multiply by one hundred to recover the stated percentage.
Your turn to explain
Make a prediction. Test your reasoning.
Ticket model: Find 20% of 60.
Use the values specified in the question. Reset restores the initial values for this investigation.
Compare your explanation
12, because 60 × 20/100 = 12.
Work through a full lesson
Connect the animation to a worked example and practice questions.