A student is writing an article for her student newspaper about a new club at her school. Read the draft of the article and complete the task that follows.

It's Thursday afternoon, and Mrs. Martinez's room Is buzzing with excitement. The students who have formed the robotics club are meeting for the first time. "I've been hoping to be in a club like this for a long time," Jose Torres says. "It feels good to be around people who have the same interests as me." Many students nod in agreement with Jose Torres; they all seem to feel the same way.

The meeting opens with Mrs. Martinez showing pictures of different robots. Students discuss the idea of each robot, the things it performs, and the mechanics involved in making it. The discussion is very interesting. After being a part of the meeting, this reporter wants to join the club!

Read the underlined sentence from the paragraph. Choose two words that would be more precise to replace the words "idea" and "things" in the sentence.