Here is a printable that you can give to your students, which will help them to graph their weekly mental maths test results! Each set contains the most commonly sized mental maths tests - a graph for 10, 15, 20 and 30 questions. I have found that students achieve the best results when they can see themselves improving, and have to physically colour in a graph each week. They love trying to beat their score! This is great to put into their portfolio or take home folder so that parents (and students) can see their progression throughout the year. I refer to these in Parent / Teacher interviews, as the data really speaks for itself!
Please check out my page for the spelling graphs. I encourage you to give it a go and see your students succeed!