Spotting patterns is one of the most useful skills in coding. Once you see what repeats, you can write it once and loop it. Year 2 coders tackle longer patterns and find the part that repeats.
Apa yang akan dipelajari anak anda
- Continue patterns with three or four parts
- Find missing items in a pattern
- Identify the repeating unit of a pattern
- Connect repeating units to loops
From patterns to loops
A pattern like 🔴 🔴 🔵 🔵 🔴 🔴 🔵 🔵 is the unit 🔴 🔴 🔵 🔵 repeated. In a program, that becomes “repeat 2: red, red, blue, blue”. Finding the unit is exactly how coders shorten their code.
Contoh soalan
Berikut ialah beberapa soalan seperti dalam misi pertama. Bolehkah anda menjawabnya?
1. Which picture is missing from the pattern?
- ?
- ⭐
- ☁️
- 🌙
- ☀️
Tunjuk jawapan
Jawapan: ⭐. The pattern repeats ⭐ ☁️ ☀️, so the missing picture is ⭐.
2. Which picture is missing from the pattern?
- ?
- 🐵
- 🐰
- 🐶
Tunjuk jawapan
Jawapan: 🐰. The pattern repeats 🐵 🐰 🐰, so the missing picture is 🐰.
3. Which picture is missing from the pattern?
- ?
- 🟣
- 🟡
- 🔴
Tunjuk jawapan
Jawapan: 🟡. The pattern repeats 🟣 🟡 🟡, so the missing picture is 🟡.
Tip untuk orang dewasa
- Make bead or Lego patterns and ask, “What’s the part that repeats?”
- Clap rhythms and repeat them.