How to make this model

[1054735311]

why does Official course not teach this model

[mihai.s]

You can model it with Bezier Spline and Curviloft extensions.
The course is for beginners. Modeling that slide requires intermediate knowledge (probably).

or you can use quads (QuadFace Tools, Vertex Tools, SUbD extensions)

[1054735311]

thank you . It helps me a lot.