Elicit non-trivial dialogue from students. Guide students to reflection and analysis of the experience. Encourage students to share their perceptions and beliefs. Summarize and review similarities and differences.

Discuss the video.

Objective: To analyze video experience. Students will realize that every direction has an opposite and direction includes distance. Therefore, there is a need for integers/rational numbers and zero.

Activity: Discuss/list/analyze students' ideas about video: opposite direction, distance, need for numbers.

Assessment: Participation in discussion.