Weekly or fornightly is what is asked for. A picture would suffice.
Describe key achievements in ome detail. Discuss any changes or admendments made. See the example on p9 of the brief.
Explanation of unit testing and how it applied/helped in your project. For this I would include a screenshot of each step/test case. Revise this from your text book. You should have a test table
| Row 1, Column 1 | Row 1, Column 2 |
| Row 2, Column 1 | Row 2, Column 2 |
| Row 3, Column 1 | Row 3, Column 2 |
Again a description including screenshots. Keep different version of your code.
Show off one clever and important piece of code. It can be from the Micro:Bit or python. Include screenshots.