You didn’t state the problem and I don’t know German, so I’m guessing you’re solving for the time of two trains?
It helps if you organize every problem into 3 steps: 1) what is the given info from the problem? 2) what core equations are we using? 3) how do we use #1 and #2 to solve the problem?
Your notes show these steps but if you can organize it well enough that it’s easy to understand just by looking at the blackboard, that will make everything smoother. Write the given info as bullet points. You’re using S=VT as the core equation, so underline it and write out what each letter stands for. From there, write each step vertically.
You didn’t state the problem and I don’t know German, so I’m guessing you’re solving for the time of two trains?
It helps if you organize every problem into 3 steps: 1) what is the given info from the problem? 2) what core equations are we using? 3) how do we use #1 and #2 to solve the problem?
Your notes show these steps but if you can organize it well enough that it’s easy to understand just by looking at the blackboard, that will make everything smoother. Write the given info as bullet points. You’re using S=VT as the core equation, so underline it and write out what each letter stands for. From there, write each step vertically.