In today’s lesson, students learned about triangles, focusing on two specific types: equilateral and isosceles triangles. A triangle is a shape with three sides, and during the lesson, students explored the definitions and properties of each triangle type; an equilateral triangle has three sides of equal length, while an isosceles triangle has two sides that are the same length and one different. The lesson included a video to help visualize the differences between triangles and emphasized the importance of understanding these shapes as part of geometry.