Lesson Title: Math in Astronomy Discipline Focus: Math is used in more areas than Arithmetic! Grade level: Third Length of lesson: 50 minutes Author: Annette Katich Stage 1 – Desired Results Content Standard(s): MN Standard 184.108.40.206 – Collect, organize, display, and interpret data. Use labels and a variety of scales and units in displays. MN Standard 220.127.116.11 – use geometric attributes to describe and create shapes in various contexts. Understanding (s)/goals Essential Question(s): Students will understand: What might the data be like if the How to think critically while interpreting orbits were circles? data. What other shape could the orbit How to construct an ellipse using tacks and be? string. Student objectives (outcomes): Students will be able to: Construct an ellipse. Acknowledge mathematics’ existence in other fields. Stage 2 – Assessment Evidence Performance Task(s): Other Evidence: Students will construct an ellipse with cork n/a board, tacks and string then measure the ellipse by definition. Stage 3 – Learning Plan Learning Activities: 1. Via PowerPoint give a brief talk about Johannes Keppler as a mathematician/astronomer. Discuss Tycho Brahe’s data and lead the class through interpretation of data by asking what the data of the orbits would be like if the orbits were circular and what other shape the orbits could be.(15 minutes max) 2. Show the students how to construct the ellipse.(5 minutes) 3. Give the students the materials and have them construct the ellipse then measure to prove it is an ellipse.(20 minutes) 4. Conclusion – Class discussion in what other disciplines is mathematics found?