Printable Probability Worksheets
Probability worksheets teach 4th and 5th grade students to quantify chance using terms like certain, likely, unlikely, and fractional ratios. These printable pages feature spinners, dice, and answer keys.
Probability Practice Pack. Ready to Print.
Structured, printable skill sheets with step-by-step guidance for Probability.
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About Probability
What this skill is
Probability measures the likelihood of an event occurring, expressed on a scale from 0 (impossible) to 1 (certain), or as a ratio of favorable outcomes to total possible outcomes.
When children learn it
Qualitative likelihood begins in 3rd grade, expanding to numeric fractional probabilities (such as 3 out of 6, or 1/2) in 4th and 5th grade.
Teaching Tips
- Use a bag of colored marbles: count the total marbles (10), count the red ones (3). Teach the probability fraction: "Target over Total" = 3/10. The bottom number is always the TOTAL number of possibilities.
Common Mistakes
- Writing probability ratios as favorable over unfavorable outcomes instead of favorable over TOTAL outcomes.
- Assuming past random trials influence future independent coin flips (the gambler's fallacy).
- Struggling when spinner sectors are divided into unequal sizes.