As a science teacher, I write a lot of documents that have numbers with units (e.g. 3.6 m/s). When readers see a number at the end of a line without units immediately following them, it is harder for them to keep the numbers and units. The 50 second video below shows the difference between regular spaces (what […]

This question focuses on the traditional grading system were all scores count the same, and a students’ final grade is based on the average of all the scores. The alternative presented is to look at trends in a student’s scores…looking for growth and allowing for early mistakes/low scores to not have as great an impact.

n Modeling Instruction lessons, most units start with a ‘paradigm lab’ that initiates development of a conceptual model for the unit (‘concepts before math’). When introducing forces, the model presented here develops the relationship between ‘pushes’ and changes in motion. This post explains the procedures and pedagogical rationale for this activity.

There are many times in physics where you start with two equations and two unknowns. You can always solve for a set of problems if you have the same number of equations as you have unknowns. In-process page: More tips will be added soon. Of of the classic problems that is so common that we […]