What should you do if your partner want to begin the experiment before reading through all procedures of teacher finishes explaining lab?

If your lab partner wants to start the experiment before the teacher finishes explaining the procedures and you've fully understood them, you should politely but firmly refuse to begin until you're both ready.

Here's how you can handle the situation:

* Explain your concern: "Hey, I'm not comfortable starting yet. I want to make sure I understand all the procedures before we begin, to avoid mistakes and ensure safety." This clearly states your reason without being accusatory.

* Suggest waiting together: "Let's wait until the teacher is finished explaining everything. Then we can review the steps together before we start." This shows collaboration and a commitment to doing the experiment correctly.

* Point out potential consequences: "If we don't fully understand the procedure, we might get inaccurate results or even have a safety hazard. Let's make sure we're both clear on what to do." This highlights the importance of following instructions.

* Seek clarification from the teacher: If your partner persists, you might say: "I'm still a little unsure about [specific step/procedure]. Could we ask the teacher for clarification before we begin?" This involves the teacher and makes it clear that you're prioritizing a correct and safe execution of the experiment.

Essentially, your priority should be safety and accuracy. Don't feel pressured to rush into something you don't fully understand. A good lab partner will respect your need for clarity and work collaboratively to achieve a successful outcome.