Types of Triangles Classroom Poster

Hang the shape and triangle posters where your 3rd grade class can see them during geometry lessons, and keep the Area and Perimeter poster visible whenever those problems come up. Point to the matching entry when introducing a new shape or formula so the vocabulary and visual land together. Print the 2D Shape Properties Chart as a hands-on activity, letting students count sides and corners and record what they find. Students can also reference any of these independently while working through geometry problems, checking a formula or shape name without needing to ask.

This set gives 3rd grade classrooms anchor charts and reference posters covering 2D shape names and properties, triangle types like equilateral and isosceles, and area and perimeter formulas with worked examples. The 2D Shape Properties Chart adds a hands-on piece, having students count and record the sides and corners of each shape rather than just reading about them. The posters are built for the wall or a math folder, giving students a formula or shape name to check mid-problem instead of guessing. Together they cover shape vocabulary, classification, and the formulas students need for area and perimeter problems.

Yes. We made it for 3rd Grade geometry, and it works the same at home or at school. Families print it for one child and keep it where they will use it every day. Teachers print a copy per student or one for the whole room, whichever the day needs.

1 printable resource, all free to preview. Downloads are included with a ClassWeekly free trial, and every page prints on standard 8.5 x 11 paper.

These are written for 3rd Grade students, roughly ages 8-9. Many teachers also use them a grade up for review or a grade down as an extension, so use the preview to judge the fit for a particular child.

Yes. Nothing here assumes a classroom of 25, so they work the same one-to-one at the kitchen table as they do in a 3rd Grade classroom, a learning center, or a tutoring session.