Basic Forms + Tonal Values

okay .To be frank,i have totally no idea what's basic form.When our lecturer asked me what's basic form,i answered 'lines'. I dont know what was i thinking at that moment but obviously that's a stupid answer ,as the question asked about basic 'forms'.

so,let me briefly explain what's basic form..hahaha.
there are three basic forms which are Cube,Sphere ,Cone/Cylinder.
so here's some example of all the 3 basic forms and also my visual diary task 1.

cube

sphere

cone

cylinder

Drawing all these with perspective point is ain't an easy task for a greenhorn.I tried my best .
hahaha.so please dont laugh at my drawing okay? XD

Second thing i learnt from Design communication on the first lesson was  Tonal Value.

Basic techniques tonal shading for sketches are :
1.hatching- parallel lines
2.cross-hatching-xxxxxxx

3.stippling-.......... actually its just dot dot 

4.scribbling-muti direction scribble

Here's it.my visual diary tasks 2.

thats what i have learnt form the first lesson .hahah.am looking forward for the second lesson ;)

Goodnight world.