You know a little about a set of related skills ―― but not enough to have a full point in any of them.
Select eight skills (which must have defaults) that you can use at +1 to the usual attribute default.
You can trade in two choices for one at default+2, or four choices for one at default+3.
If a skill has an unusually generous default, you can’t raise it to the level that actual points in the skill would buy.
Example: Mr. Mack the science teacher dabbles in Biology, Chemistry, Mathematics (Applied), and Physics, all of which default to IQ-6. He trades his allowed eight skills at default+1 for four at default+2, and has all four skills at IQ-4.
The selected skills still count as defaults, not as studied skills.
You can’t default other skills to the improved defaults and don’t benefit from rules that apply only to people who “know” a skill.