OpenSciEd Unit 8.1 · Lesson 10 · 10.B
Compare breakage scenarios
From Teacher Edition
Facilitation guidance from the lesson plan — what to notice in student thinking and how to respond while teaching.
Building towards
10.B Students apply the science ideas to explain multiple baseball phenomena, including the effects of air density and wind on ball speed (changes to the stability of the system and its effect on kinetic energy changes due to air resistance), bat mass vs. bat speed (interpreting patterns in graphical and tabular data to determine the linear and nonlinear effects on increases of kinetic energy within the system), and bat type (the effect deformation has on peak forces in the system and kinetic energy) on how the game is played.
What to do
questions regarding the mass-energy relationship
Look back at the data from the Lesson 9 cart and box model and the Lesson 7 investigation data and graph regarding the increases in mass and kinetic energy needed to speed the object up to the same point. If this is not enough, pull the student aside and have them push two objects of different masses and determine which item would require more energy to get to the same speed. Have students apply this knowledge to the bat mass and swing speed questions on the assessment.
questions regarding increases in mass vs. increases in speed: Revisit the data from Lesson 7 on Changes in Kinetic Energy: Investigations #1 & 2 and Graphing Kinetic Energy Relationships to compare the relationships seen in the Lesson 7 data and the data on the assessment.