🎓 Year 2 (ACARA Code: AC9M2N01)
🎯Focus:
Students will be able to:
🔢 count forwards and backwards on number lines and find missing numbers.
🧩 use a hundreds chart to solve number puzzles and spot patterns.
📏 order numbers to at least 1000 using number lines and charts.
🎯 read and locate numbers on a hundreds chart using rows and columns.
🧠 use number lines and charts in real‑life situations like measuring height or temperature.
Video Lessons
- 📝 Create your own number line with 3–5 missing numbers to swap.
- 🧩 Cut a hundreds chart into 4–6 puzzle pieces and reassemble it.
- 📏 Look for number lines at home (growth chart, ruler, thermometer) and try reading them together.
💡 Key Ideas
➡️ When you move to the right, numbers get bigger.
➡️ When you move to the left, numbers get smaller.
➡️ Counting by 1, 10 or 2 helps you see the pattern on the line.
➡️ A hundreds chart is like a 10×10 puzzle of numbers from 1 to 100.
🧩 Mini Quiz – Quick Check
Try these after watching the video:
❓Question 1: Which number is missing? 180, 181, ___, 183
✅ Answer: 182
❓Question 2: What number is 10 more than 65?
✅ Answer: 75
❓Question 3: On a hundreds chart, what is directly below 23?
✅ Answer: 33
❓Question 4: A number line shows 140, 150, 160, ___, 180. What is missing?
✅ Answer: 170
❓Question 5: On a hundreds chart, what is directly to the right of 78?
✅ Answer: 79
Scored:
5/5 💯 = Champion!
3–4/5 🌟 = Great Work!
0–2/5 🔄 = Watch the video again!
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📚 Other Lessons in This Unit
🚀 Learning Path (Recommended Order)
| Step | 🔗 Lesson | 💡 What You Learn |
|---|---|---|
| 1 | 📚 Year 2 Place Value: How Do Ones, Tens and Hundreds Work? | Represent numbers to 1000 using hundreds, tens and ones. Use place-value charts, drawings and materials to explain the value of each digit in a number. |
| 2 | 🧩Year 2 Maths: Read, Write and Order Numbers to 1000 | Read and write numbers to 1000 using numerals and words. Compare numbers and place them in order from smallest to largest or largest to smallest. |
| 3 | 🧠 Year 2 Number Lines and Hundreds Charts: How to Find Missing Numbers ⭐ You are here⭐ | Use number lines and hundreds charts to count forwards and backwards, identify number patterns and find missing numbers. Practise counting in ones, tens and hundreds. |