Khan Academy
Khan Academy: Hybrid Orbitals: Tetrahedral Bond Angle Proof
Presents a three-dimensional model of a methane molecule, with its tetrahedral bond, to make it easier to see the structure and bond angle. [5:05]
Khan Academy
Khan Academy: Hybridization: Sp3 Hybridized Orbitals and Sigma Bonds
In this tutorial, the hybridization of orbitals is discussed. [16:23]