Grade 7 - Work for about 20 minutes on the investigation. The deadline for the investigation is at the END of next lesson so I suggest you make a start on your conclusion at home but you will still have time to finish it (and the evaluation) in class.
Grade 8 - complete the investigation. The deadline is the START of next lesson and you should hand in the report including a print out of the data and graph.
Grade 9 short - no homework
Grade 9 long - watch these two videos Video 1 Using the microbits and exporting data
Video 2 Excel and graphs. You will need to know how to export your data to excel or to googlesheets when you do your investigation.