Printable Half Protractors Resource (Free Download)

Suitable for Year groups: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11

Printable Half Protractors resource description

Here is a page of printable 180 degree protractors. Print on normal paper for activities on redding from protractors, or print on acetate or tracing paper for a flexible and usable protractor.

Cazoom Maths Teaching Resources: Half Protractors

What is the resource?

This PDF provides protractors with a 'half circle' scale for measuring angles up to 180 degrees. It's great for introducing angle concepts in primary or early secondary.


Why is measuring angles important?

It's far more than just a classroom task.  Measuring angles unlocks:

  • Design & building: From furniture to ramps, angles determine shape and function.
  • Navigation: Tools for maps and directions rely on accurate angle reading.
  • Science observation: Telescopes, microscopes – even our body angles affect the view.
  • Sports analysis: The launch angle of a shot makes or breaks the score.


Why is this resource helpful?

The half-circle design simplifies complex maths for learners:

  • Focus on basics: Teaches core angle measuring without the confusion of 360°.
  • Clear scale: Bold numbers and markings aid accuracy for new learners.
  • Hands-on measuring: Great for practical activities with different-sized angles.
  • Builds confidence: Success with this tool prepares kids for full protractors later.
  • Printable PDFs: Ensures enough for class practice, homework, or tests.

These protractors offer a vital stepping stone. Students learn the logic of angles without being overwhelmed by too much information at once.



Also, have a look at our wide range of worksheets that are specifically curated to help your students practice their skills related to similarity and congruence. These teaching resources and worksheets are in PDF format and can be downloaded easily.


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