What kind of sentences are they and how do I diagram them?

Large brains "do" not necessarily "confer" superior intelligence.
I ordered materials to use in the craft school "from a supplier" in Minnesota.
"This done," I outlined lesson plans for my craft classes

Why are those words in quotation marks?

Check this site for diagramming.

http://1aiway.com/nlp4net/services/enparser/

Those are the words I'm supposed to put in the diagram

That first sentence's main verb = "do" and "confer" put together.

All three of these sentences are simple sentences.

Before you can diagram any sentence, you must be able to tell what each word in the sentence is and how it's related to the others.

Here are two additional websites that will help you with diagramming:

http://teachro.publiccomputingservices.org/

http://grammar.ccc.commnet.edu/grammar/diagrams/diagrams.htm

The sentences you provided can be classified as various types of sentences based on their structure and purpose. Let's analyze each sentence and discuss how to diagram them.

1. "Large brains do not necessarily confer superior intelligence."

This sentence is a declarative sentence, expressing a statement. Here's how you can diagram it:

Large brains do not necessarily confer superior intelligence
↓ ↓ ↓ ↓
Subject Auxiliary Adverb Verb Direct Object

The subject of the sentence is "Large brains." The auxiliary verb "do" is acting as a helping verb to form the negative phrase "do not." "Not" is the adverb modifying the verb "confer," which means "to grant or bestow." Finally, "superior intelligence" is the direct object of the verb.

2. "I ordered materials to use in the craft school from a supplier in Minnesota."

This sentence is a complex sentence, consisting of an independent clause ("I ordered materials") and a prepositional phrase ("to use in the craft school from a supplier in Minnesota"). Diagramming it would look like this:

I ordered materials
↓ ↓ ↓
Subject Verb Direct Object

to use in the craft school from a supplier in Minnesota
↓ ↓ ↓
Infinitive Phrase Prepositional Phrase Prepositional Phrase

In this diagram, "I" is the subject, and "ordered" is the verb. "Materials" acts as the direct object. The prepositional phrases "to use in the craft school" and "from a supplier in Minnesota" provide additional information about how, when, or where the action occurred.

3. "This done, I outlined lesson plans for my craft classes."

This sentence is a complex sentence as well, with an introductory phrase ("This done") and an independent clause ("I outlined lesson plans for my craft classes"). Here's the diagram:

This done I outlined lesson plans
| ↓ ↓ ↓
Participial Phrase Subject Verb Direct Object

for my craft classes
↓ ↓
Prepositional Phrase Prepositional Phrase

In the diagram, "This done" is a participial phrase that acts as an introductory phrase, providing additional information about the subject. "I" is the subject, "outlined" is the verb, and "lesson plans" is the direct object. The prepositional phrases "for" and "my craft classes" give further details.