lesson
Matching halves
Read with an adult. You can say, point, draw or write your answer.
1 · Learn
A line of symmetry splits a flat shape so one side matches the other when folded along that line.
Fold a rectangle through the middle from top to bottom. The sides match. A random line across a shape does not always make matching halves.
2 · Worked example
A square has a vertical line of symmetry through its centre. Its left and right halves match across that line.
3 · Your turn
Is every line drawn through a shape a line of symmetry? Explain how you can check.
Check your answer
No. Fold along the line or compare both sides: the halves must match.
4 · Apply your learning
Fold paper squares and rectangles along vertical centre lines. Try a line away from the centre and compare.
Adult guidance and safety
Use practical objects before symbols. Read the task aloud when needed and ask the child to explain, not just name an answer. Revisit with different examples; one successful answer is not proof of fluency.
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