Ooh this looks fun! My kids love anything with codes and puzzles, makes them feel like they're solving mysteries haha. Seasonal words are perfect for this age because they see them everywhere, so it actually sticks in their heads better than random vocab. A few of my mum friends have been using Covoji activities and they say their kids keep asking to do more, which honestly is half the battle with learning Worth trying out especially if your child gets bored easily with worksheets!