# Peter Bohacek

Peter Bohacek is a high school physics teacher in Mendota Heights MN. With his education as an electrical engineer, Peter worked in industry for 15 years before becoming a physics teacher. An avid photographer and videographer, Peter is pursuing the opportunities of using video in physics instruction. He is compiling a library of Direct Measurement Videos that can be used to teach introductory physics mechanics.

Peter lives in Afton, MN with his wife and three children. He and his family love outdoor sports, like camping in the Boundary Waters and nordic skiing.

## Website Content Contributions

### Activities (11)

Measuring velocity of objects using video clips part of comPADRE Pedagogic Library:Teaching with Data:Examples

Students learn to determine the velocity of moving objects by doing simple analysis of video clips.

### Teaching Method Module (1)

Integrating Measurement and Uncertainty into Science Instruction part of comPADRE Pedagogic Library:Measurement and Uncertainty

"When you can measure what you are speaking about, and express it in numbers, you know something about it; but when you cannot measure it, when you cannot express it in numbers, your knowledge is of a meagre ...

### Other Contributions (3)

Measuring the coefficient of friction of a skater on ice part of comPADRE Pedagogic Library:Teaching with Data:Examples

Students use video analysis of ice skaters gliding across the ice to determine the coefficient of friction between the skates and the ice. Materials include instructions and six videos that can be used for analysis.

Performing Calculations using Measured Values that Include Uncertainty part of comPADRE Pedagogic Library:Measurement and Uncertainty:Examples

Students measure the density of pennies to determine their composition. Students practice determining measured values that include uncertainty and practice calculations using numbers that include uncertainty.

Determining Measured Values and Uncertainty part of comPADRE Pedagogic Library:Measurement and Uncertainty:Examples

Student practice taking measurements with various instruments and learn to determine the uncertainty of their measured value.