These are more formal pretests. For you at this time, you can use something like this as a template. For our purposes, until you feel more comfortable with the idea of pretests this is the best way to gain an accurate measure. You really need to know what you want your student to know after your lesson is over. This is how you consider your instruction, activities, materials, methods, strategies....This is the only way you will truly know if you had a gain in learning.
Sometimes, we get caught up in the lesson itself and lose site of what we truly want our learner to know. We do not know what they know before we teach them. We might make an assumption. We may even adjust naturally while we are teaching, but when we do that, have we truly captured the true needs of all of our students?
How can we as teachers capture a snapshot of our students understandings before we teach them our great lesson to better prepare ourselves (and them) for what is to come?
From your pretest, you will have information about what your student has some concept of and does not understand or know. Such as concepts, vocabulary, terms, ideas, processes, etc.. This data that you obtain, is what you use when you are teaching. Highlighting specific problems, concepts, providing practice, questions, feedback, ...extra games, worksheets, activities...
This collecting of data never ends....You collect more data throughout instruction (formative assessments) which helps you continually adjust instruction...strategies, methods, materials, resources, ...
After the lesson, you could use questions from your pretest (that highlight your intended learning aims) in your post test. The use of the same questions will make it easier to identify what or if any learning gains have taken place at the end of your instruction for each individual student. You do not have to use all questions in your post test, only the 3 - 4 that focus on your intended learning goals. This gives you a systematic measure of what it is you wanted students to know and if they in-fact now know these concepts after you taught them. Did their scores improve? If scores move up just a bit, there is a slight gain. A slight gain is good. No gain, not so good. Now what?