This Escape Room helps students determine a series similar to a given series for comparison. My students seem to struggle with this most years, or at least feel uncomfortable, so I thought a quick practice would help. Students will be given several series and choose a Geometric Series or P-Series that looks similar in degree, base, etc. To pass each challenge, students will choose a comparison series and find the 3- or 4-letter code of letters in the correct order to advance. If they choose