Classifying Two-Dimensional Figures
Free to teach as-is — the teacher guide, student handout, and slides are included.
Free — we'll email you an access link. Google Docs format.
Objective
I can classify two-dimensional figures based on their properties.
Part 1 of 4
Warm-up video
Khan Academy · 6:08Vetted channel
We don't generate video — this one is by Khan Academy on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 4
Key concepts
3 concepts
- 1
A shape with three sides and three corners is called a triangle. The prefix 'Tri' means three.
- 2
Any shape that has four sides is called a quadrilateral. The prefix 'Quad' means four.
- 3
A rectangle has four square corners (right angles), and a square is a special type of rectangle where all the sides are the same length.
Part 3 of 4
Practice
3 questions
Which of the following shapes is a quadrilateral?
Which statement BEST describes the key difference between a rectangle and a square?
Part 4 of 4
Exit ticket
Quick comprehension check
“Draw and label an example of each of the following figures: quadrilateral, rectangle, and trapezoid.”
Sample answer included in the free materials
Get the materials
Teacher guide, student handout, and slides — free, in Google Docs format
Teacher Guide
Complete lesson plan with answer keys and alternate activities
Student Handout
Printable worksheet
Slides
Ready to present
We'll ask for your email to send your access link — nothing else.
Teaching a group at a different level?
Where are your students right now? We'll rebuild this lesson to match — including the teacher guide, student handout, and slides, saved to your Google Drive.
Adapt This Lesson