Instructions:

Watch the video as you go through the first page on the handouts. You will identify when to use the graphing method and when to use the substitution method. This is essentially additional practice for solving system of equations using each method.

After watching the video, complete page two. You will solve system of equations problems using both methods to answer the question, how do you stop an Astronaut's baby from crying?

Worksheets:

Watch These Videos:

• Graphing or Substitution