Review spreadsheet exercises

[kfklein15]

Background After a discussion with Mark, we identified that the spreadsheet exercises might not be apparent or might need to have learning objectives reviewed

• Review all spreadsheet exercises

[kfklein15]

I reviewed the exercises so they wouldn't only be about "learning how to use a spreadsheet".

https://cyf-pd.netlify.app/admin/#/collections/blocks/entries/set-up-a-google-sheet-so-we-can-organise-a-slack-posting-rota/readme

https://cyf-pd.netlify.app/admin/#/collections/blocks/entries/pairs-for-next-week/readme

https://cyf-pd.netlify.app/admin/#/collections/blocks/entries/create-groups/readme

https://cyf-pd.netlify.app/admin/#/collections/blocks/entries/create-groups-for-js2/readme

[kfklein15]

I will close this and wait for feedback from the users. They can easily be changed.