Final answer:
No, sentences that are connected without using any conjunction are not considered conjoined.
Step-by-step explanation:
When children connect two sentences without using any conjunction at all, simply by juxtaposing the clauses without an intonation boundary, these sentences are not counted as conjoined. This is because conjoined sentences require the use of coordinating conjunctions like 'and', 'but', 'or', etc., to join two independent clauses. In the case of sentences joined without a conjunction, they are considered separate sentences that are placed next to each other.