The first ppt is only on time series and suitable for GCSE maths. The second and third ppt moving averages and seasonal variations with the word documents are targetted at GCSE statistics
ppt on averages of grouped data - can be edited to suit weaker pupils and has challenge questions incorporated too. Contains modal interval, median intervals, estimating the mean and the median with common misconceptions covered. Blank worksheets are included and ANSWERS too!
I am currently working on putting together a 2 a day challenge for 100 days (which would take me to mid May). You can choose to use it as a weekly homework! I am not marking as such - scanning for correct answers and traffic lighting a spreadsheet with all students on it. A content table of which exam paper and question number with worked solution is provided weekly. (I upload to Teams). The solutions are worked answers from Physics Maths Tutor and Mathsgenie. I am currently teaching Ch7 in A2 so the questions reflect where I am upto. I have uploaded word document and pdf’s (of solutions) so people can change questions as they wish.