A.I. Explanation:

First sentence: Why this is the first line? This paragraph is the first line because it introduces the main topic about children learning from TV. It is a general statement that does not need other sentences for context. It does not start with a conjunction or use pronouns. Why other lines are not chosen? Paragraph 2 starts with 'Also,' which is a conjunction. Paragraph 3 starts with 'This,' which is a pronoun. Paragraph 4 starts with 'Older,' which is not a general statement. Paragraph 5 starts with 'Also,' which is a conjunction.

Concluding sentence: Why this is the last line? This paragraph is the last line because it summarizes the problems with video learning. It gives specific examples that wrap up the discussion about learning from media.

Paragraph pairs:

• Pair 1 (Paragraph 1 → Paragraph 2): Paragraph 2 connects with Paragraph 1 using the Connector strategy. The word 'However' shows a contrast between learning from video and learning from direct experience.
• Pair 2 (Paragraph 2 → Paragraph 3): Paragraph 3 connects with Paragraph 2 using the Logical Order strategy. It continues the idea of children having trouble learning, focusing on older preschoolers.
• Pair 3 (Paragraph 3 → Paragraph 4): Paragraph 4 connects with Paragraph 3 using the Cause and Effect Relationship strategy. It explains why older preschoolers may have trouble learning from media.
• Pair 4 (Paragraph 4 → Paragraph 5): Paragraph 5 connects with Paragraph 4 using the Broader to Specific Strategy. It gives more details about the problems with video learning.