02

Curipod lesson about topic "classifying triangles"

Updated 5 months ago

1. Word cloud

120 seconds

What type of triangle has three equal sides?

2. Slide

60 seconds

Triangles have three sides and three angles. Triangles can be classified by their sides or angles. Knowing how to classify triangles helps us understand their properties.

Classifying Triangles

3. Slide

60 seconds

Equilateral Triangle: A triangle with all sides equal in length. Isosceles Triangle: A triangle with two sides equal in length. Scalene Triangle: A triangle with all three sides having different lengths.

Concepts:

4. Slide

60 seconds

The first use of the word “triangle” was in a book written by Euclid, an ancient Greek mathematician, around 300 BCE. The sum of the angles of a triangle is always 180°, no matter the size or shape. The area of a triangle can be calculated using Heron’s Formula, which is named after an ancient Greek mathematician.

Fun facts:

5. Open question

660 seconds

Work together in pairs: Which type of triangle did you find the most interesting to learn about during this lesson? Explain why.

6. Open question

660 seconds

Work together in pairs: What are the three main ways to classify a triangle?

7. Drawings

450 seconds

Brain break: Draw a self-portrait of yourself as a superhero!

8. Poll

300 seconds

What type of triangle has three sides that are equal in length?

- Scalene
- Isosceles
- Equilateral
- Right

9. Poll

300 seconds

What type of triangle has two sides that are equal in length?

- Scalene
- Isosceles
- Equilateral
- Right

10. Poll

300 seconds

What type of triangle has three angles that are equal in measure?

- Scalene
- Isosceles
- Equilateral
- Right

11. Poll

300 seconds

What type of triangle has one angle that is 90 degrees?

- Scalene
- Isosceles
- Equilateral
- Right

12. Poll

300 seconds

What type of triangle has two angles that are equal in measure?

- Scalene
- Isosceles
- Equilateral
- Right

Made with ❤️ from Norway