🎓 Year 3 (ACARA Code : AC9M3P02)
🎯Focus:
✨ Explain what a “trial” is in a chance experiment
📊 Record results using a tally chart
🪙 Tally heads, tails, dice numbers, spinner colours or bag draws
🌈 Describe how results can vary between trials
😊 Talk about variation in a class discussion
Video Lessons
📹 Video Lesson Tips
- 🤝 Compare “your” tallies with a friend’s
- ✨ Stand up and do the air‑tally movement
- 📝 Draw your own tally chart
- 🔄 Try 10 coin tosses and record them
- 🌟 Share your results with a family member
💡 Key Ideas (Quick Guide)
🌟 “Tally, tally, tally! — Each trial gets one line in your chart.”
What is a trial?
Doing lots of trials helps us see patterns and differences 💡
🎯 Each time you toss a coin, roll a dice, spin a spinner or pull from a bag = 1 trial
What Is Variation?
🌊 “Variation means the results change a little… or a lot!”
- Some trials give 6 heads, some give 4 — that’s variation
- Different students get different tallies — that’s variation too!
🧩 Mini Quiz – Quick Check
Try these after watching the video:
❓Question 1: One toss of a coin is called a…
✅ Answer: trial
❓Question 2: Each tally line stands for…
✅ Answer: 1 result
❓Question 3:If you roll a dice 8 times, how many tally marks should you have?
✅ Answer: 8
❓Question 4: When your results change between trials, this is called…
✅ Answer: variation
❓Question 5: Recording trials with tally charts helps us…
✅ Answer: remember what happened
Scored:
5/5 💯 = Champion!
3–4/5 🌟 = Great Work!
0–2/5 🔄 = Watch the video again!
📄 Sample Worksheet Preview
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📚 Other Lessons in Next Unit
🚀 Learning Path (Recommended Order)
| Step | Lesson | What You Learn |
|---|---|---|
| 1 | 🎲 Year 3 Chance Experiments: Possible Outcomes Examples & Activities | Learn how to identify and list all possible outcomes of chance experiments using dice, coins, and spinners. |
| 2 | 🎲 Year 3 Chance Experiments: Tally Charts, Trials and Variation (Examples & Worksheets) ⭐ You are here⭐ | Learn how to conduct repeated trials, record results using tally charts and frequency tables, and recognise variation in outcomes. |
↩️ Back to Year 3 Chance Experiments: Possible Outcomes, Tally Charts & Variation | AC9M3P02