Classroom Stars

Triangular Numbers Anchor Charts | KS2 Number & Place Value | Primary Maths

Triangular Numbers Anchor Charts

Discover the world of triangular numbers with our engaging triangular numbers anchor charts! This set includes an introduction page, an explanation page with an illustrative example and a series of pages showing equilateral triangles with a specific number of circles contained within. The triangular numbers included are 1, 3, 6, 10, 15, 21, 28, and 37.

Our triangular numbers anchor charts offer a comprehensive and visually captivating approach to understanding this mathematical concept. Children will grasp the concept that a triangular number represents the count of circles evenly arranged within an equilateral triangle. For instance, 3 is a triangular number because it corresponds to the 3 circles evenly filled within an equilateral triangle. Make learning about triangular numbers an enjoyable and insightful experience with these vibrant and informative charts!

Our triangular numbers anchor charts/posters are aligned with KS2 number and place value on the national curriculum. This primary resource can be used with your ideas for maths activities and games, display boards, teaching material, learning aids, differentiation, homework, and lesson plans.

If you like this primary resource, you may also be interested in Greater Than, Less Than, Equals Signs (with Kids) Interactive Posters.

Check out the rest of our number and place value primary resources.


Access this resource and thousands more for just £9.95 per year

Already a member of
Classroom Stars?
Share this resource with your friends and colleagues
Sign in
Don’t have an account? Join now

You have subscribed to our newsletter!

You have joined the list to receive our newsletter! Be sure to look out for all our latest resources, news and reads from our blog.

Access this AI tool and lots more for just £9.95 per year

Already a member of
Classroom Stars?

Email address updated

Your email address has been updated. A confirmation has been sent to your previous email address.

Check your email

We have sent you an email with a link to create a new password.

Remember to check the junk folder in case the link was sent there.

Sign in

Your message has been received

Thank you for getting in contact with us! A member of our team will do their best to get back to you as soon as possible.

Request for school membership received

Thank you for providing us with your details. A member of our team will get back to you as soon as possible with the next steps.

New password created

Your new password has been created. A confirmation email has been sent to you.

Download your free resource pack

Thank you for joining the list to receive our newsletter! Click below to download your free sample resource pack.