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===== Energy-Momentum in Different Frames: Instructor's Guide =====

==== Main Ideas ====

  * Converting energy-momentum from one reference frame to another.
  * Certain combinations (mass) are invariant.

==== Students' Task ====
//Estimated Time: 30 minutes, including wrap-up//

Students should be asked to complete the table on the
[[em>review_mechanics|Handout]].

==== Prerequisite Knowledge ====

  * basic understanding of relativistic mechanics.

==== Props/Equipment ====

  * [[:Props:start#whiteboards|Small whiteboards]] with markers
  * {{activities:content:handouts:rfeframeshand.pdf|Handout}} ([[em>review_mechanics|HTML version]])

==== Wrap-Up ====

  * Ask several students to present/defend their responses.
  * Demonstrate how the table can be completed using hyperbola triangle trig.