Abstract: A recommender engine is configured to access memory and surface transmedia content items; and/or linked transmedia content subsets; and/or one or more identifications of identified users; and/or content items of the plurality of transmedia content items associated with at least one identified user. The surfaced items are presented for selection by the given user via the transmedia content linking engine as one or more user-selected transmedia content items.

Abstract: A recommender engine is configured to access memory and surface transmedia content items; and/or linked transmedia content subsets; and/or one or more identifications of identified users; and/or content items of the plurality of transmedia content items associated with at least one identified user. The surfaced items are presented for selection by the given user via the transmedia content linking engine as one or more user-selected transmedia content items.

Abstract: A method of presenting training materials for training users with developmental dyscalculia or related learning difficulties includes determining a number or a numerical expression to present as part of training the user in developing internal maps to assist with overcoming a learning difficulty, whereby the user can increase a tendency to establish an internal neurological representation of numbers and numerical expression, wherein a numerical expression is a sequence of at least one number and at least one mathematical operator, generating a representation in a virtual space of an arrangement of numbers, including a number line and a representation of the number or the numerical expression, taking into account a resolution of the computer-controlled display that is to be used, and presenting to the user, using the computer-controlled display, a view of the virtual space showing the number line and the representation of the number or the numerical expression.