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Name a triangle

Students identify and name a triangle in everyday objects, recognizing the shape regardless of its size or orientation.

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Real questions from this skill, graded here. No account, and nothing is saved.

Name a triangle

Kindergarten · Identifying and Naming Shapes · question 1 of 3

0 of 12

12 rungs. A star at the top.

123

Type the triangle's number.

How it is taught

0:00 of 1:57

This window shape has 3 straight sides.

It has 3 corners too.

Read it: Name a shape: count sides and corners

Count the sides. Count the corners. A shape with 3 sides and 3 corners is a triangle.

  1. Count the sides: 3.
  2. Count the corners: 3.
  3. 3 sides and 3 corners: it is a triangle.

A shape's sides and corners tell its name.

A tipped triangle still has 3 sides, so it is still a triangle.

A circle is round, so it has no sides to count.

Count the sides and the corners. They tell you the name.

Saying a tipped triangle is not a triangle.

Turn it in your head. It still has 3 sides and 3 corners.

Identify a triangle

Triangles are all around us — like the roof on top of a house!

Here is a triangle, all by itself. Let's see what makes it special.

Kindergarten · 3 sides, 3 corners

A triangle has straight sides. One...

...two...

...three sides!

And three pointy corners, too.

Triangles can point any way — up, down, or sideways. They're still triangles!

Big or small, if it has three straight sides, it's a triangle.

Three sides and three corners — that's a triangle!

Now you try. Count the corners on this shape. Type the corner count.

What you see

While they climb, your page writes one true line to ask about tonight, and a short note each Sunday.

MayaGrade 3 · Mathematics
Did you know?

A chessboard has 64 squares — share them out between the 8 rows and each row holds exactly 8.

Today’s goal
1 star — one skill mastered, every rung of its ladder climbed
Climbing now
Divide within 100

An example student.

MayaGrade 3 · Mathematics

Maya earned 2 stars this week — Interpret multiplication as equal groups, which took 6 answers over 3 days before its star landed 3 days ago and Multiply by 6, 7, 8 and 9. Next up: Divide within 100.

An example week.

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Name a triangle — Kindergarten Mathematics