Grade 6 · Probability
Garden measurements: Count an equally likely event
Garden measurements investigation: count an equally likely event. 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.
For a finite collection of equally likely outcomes, a probability is the fraction that satisfy the event. Counting favorable outcomes is not enough without naming the full sample space. The scanning marker inspects known outcomes and is not a random experiment. This investigation begins with favorable outcomes = 7; total equally likely outcomes = 16. Treat the named setting as a constructed classroom model, then explain which relationships would still hold if its numbers changed.
A relationship to keep
P(event) = favorable outcomes / total outcomes
Read the symbols alongside the explanation. A diagram shows the relationship; the assumptions tell you when it applies.
- STEP 1
Represent the given quantities
Count the amber event outcomes and the full grid, which includes both event and non-event outcomes.
- STEP 2
Follow the changing model
Playback inspects each outcome in order. It does not simulate repeated draws or estimate a probability from frequencies.
- STEP 3
Check and explain the relationship
Divide favorable by total, then find the complement by subtracting the probability from one.
Your turn to explain
Make a prediction. Test your reasoning.
Garden measurements: An equally likely collection contains 7 favorable outcomes out of 16. Find the probability.
Use the values specified in the question. Reset restores the initial values for this investigation.
Compare your explanation
7/16 = 43.75%. Its complement is 56.25%.
Work through a full lesson
Connect the animation to a worked example and practice questions.