eMath Textbooks for 4f Studio

Buy eMath 1 - eMath 10 high school mathematics textbooks in the 4Ferries Webshop. The textbooks are downloaded to the textbook shelf in 4f Studio. Requires an active 4f Studio subscription.


eMath Textbook     10 €  each

(price includes VAT 24 %)

Supporting products

eMath Textbooks for Tablets

Buy eMath textbook apps for iPad tablets in AppStore.


Check prices in AppStore

Structured Derivations Textbooks

Buy textbooks on structured derivations on Amazon.


     Ralph-Johan Back: Structured Derivations: Teaching Mathematical Reasoning in High School  (Four Ferries Publishing, 2015)

     Ralph-Johan Back: Teaching Mathematics in the Digital Age with Structured Derivations (Four Ferries Publishing, 2016)


 Check prices on Amazon.