https://code.org/curriculum/course1/1/Teacher,Code.org,1.1 Happy Maps,CC Math Practice,1,K
https://code.org/curriculum/course1/1/Teacher,Code.org,1.1 Happy Maps,CC Math Practice,2,12
creates a listing for the Happy Maps lesson with a displayed grade range of K-12. It would only respond to filtering for grade K and grade 12, though.
If the underlying issue can't be fixed (i.e. if ranges can't be auto-generated in some way), it may be worth writing a script that will replicate lessons for every grade level that they reach. Otherwise it can be done manually for now.
Right now (as described in https://github.com/TeachTechTaskForce/edumap/issues/141), grade ranges require redundant input.
Example:
creates a listing for the Happy Maps lesson with a displayed grade range of K-12. It would only respond to filtering for grade K and grade 12, though.
If the underlying issue can't be fixed (i.e. if ranges can't be auto-generated in some way), it may be worth writing a script that will replicate lessons for every grade level that they reach. Otherwise it can be done manually for now.