Symmetry & Nets
Lines of symmetry in 2D shapes, and the flat nets that fold into 3D solids.
What this lesson covers
Symmetry & Nets is a 8-part Class 4 Mathematics lesson. Each part makes one point and then hands over to the next, so it can be read in a sitting or picked up again at the part you stopped on. It defines the idea in plain words before using it, works through an example step by step, breaks the topic into its parts and compares them, shows where it is used outside the textbook, names the mistakes that cost marks in an exam, ends with a recap of what to remember.
How it begins
A line of symmetry splits a shape into two halves that match exactly when folded. Lines can be vertical, horizontal or diagonal.
The 8 parts
- Lines of symmetry
- How many lines?
- What a net is
- Matching nets to solids
- Testing a net
- Where marks go
- What to remember
- Watch one worked through
Practise Symmetry & Nets
Everything on QuizByt for Class 4 Mathematics that goes with this lesson: read it first, then test yourself while it is fresh.
🧠 5 quizzes on Symmetry & Nets (2 easy, 2 medium, 1 hard)
Work up from easy to hard: the hard quiz asks the Class 4 exam-style questions on Symmetry & Nets.
🖨️ Printable worksheet
Symmetry & Nets on paper for Class 4, with room to write the working out. Preview the first page free.
🎮 Games for Class 4 Mathematics
Number and logic games at the right level for Class 4. Passing a quiz on Symmetry & Nets earns the credits that open them.
This topic needs a subscription
This lesson is part of a paid plan. Create a free account to start with our free lessons, or subscribe to open every topic.
- 🆓 Free lessons are open on any account
- 📗 Monthly: 5 paid topics a month
- 📘 Yearly: 7 paid topics a month
- ⭐ Premium, every topic, unlimited
- 🧺 Or buy this single topic, the lesson is included