Back to School Math Mystery: the Case of The School Invaders - 4th Grade Edition.Students must review math skills from the previous grade to help get rid of the stinky, slimy Geometron aliens invading Mathhattan Elementary School! Easy prep!Printable PDF - print, copy, solve!Digital worksheets with Google Slides or EASEL⭐Optional video hook included for introducing the case!CLICK HERE FOR VIDEO HOOK! or check out in the preview section.⭐Due to several requests, now there is the option to use a