Need new script for updated PhotoShop

Hi! I am a teacher using Photoshop for a school project. We have done this project for years using the older version of Photoshop. We now have the updated version of Photoshop, but our directions for adding a 'script' no longer make sense. If anyone could translate these directions to reflect the updated version of Photoshop, our school would really appreciate it! 

Old Directions: 

• Open Photoshop 6.0 in Edit
• Open a file
• Action: New Action:
  •      Image, auto color
  •      Image size
    • Resize Image
    • Constrain Proportions
    • Choose width or height 1 inch
    • Resolution 300 dpi
  •  Stop recording & close file
• File, Scripts, Image processor
  • Select Folder
    • Source: student scanned art
    • Destination: at new Thumbnail folder
  • Image Size
  • File Type: Convert Files to: JPEG High Quality
  • Quick Fix: Auto Levels