Connect students directly to the concept in a personal way. Capture students' attention by initiating a group problem-solving activity before delivery of instruction. Begin with a situation that is familiar to students and builds on what they already know. Construct a learning experience that allows diverse and personal student responses. Facilitate the work of cooperative teams of students.

Sing, "Jenny Works with One Hammer"

Objective: To connect students to the idea of tools (machines) as resources.

Activity: Have students sing and pantomime the hammer song: "Jenny works with one hammer, One hammer, one hammer. Jenny works with one hammer, Then she works with two ....... Jenny works with five hammers, Five hammers, five hammers. Jenny works with five hammers, Then she goes to sleep!

Assessment: Students' enjoyment of the hammer song.