how to make training available on tablets for people without access to the mail

Hello, I am working on a training for manual workers installing washing machines in a facory. They are not office workers. They do not have access to e-mail. The training will be conducted using tablets. I have 2 questions: – how can I provide 20 people with training presented on 20 tablets? – training will finish with a test / knowledge checker element, I do not need the results reporting only the answer result as screen should be available to the […]