A note for the parent
What your child had to do in this Probability problem
This was not a watch-and-copy exercise. The student had to make 7 small mathematical decisions and correct any wrong turns before moving forward.
The skill being built
Reasoning, not answer recognition
When outcomes are added, the favourable count and the total both change. Write both in terms of the unknown total , then set the new probability equal to the value given.
The mistake we watch for
A wrong answer is useful evidence
Adding the six balls to the red count but keeping the total at , which gives balls and green.
What happens when a step goes wrong?
The choice is crossed out
The app does not pretend the mistake did not happen.
The reason is explained
The child sees the exact misconception behind that choice.
The child tries again
The app guides, but the student still makes the next decision.
If this teaching style helps
Let your child keep learning this way
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