A wheel chart for visualizing sleep pressure on a person's body by manipulating a series of moveable circular disks positioned on a common axis wherein the wheel includes a first disk representing a circadian (C) process and second disk representing a homeostatic (S) process. The disks are rotatable relative to each other to simulate how the C and S processes increase and decrease sleep pressure.

A multi-layer toy having at least one outer layer adjacent a planar layer or a ball where both the outer layer and the adjacent planar layer or ball each contain related information such that, in play, the information on the outer layer is made to align with the related information on the adjacent planar layer or ball. The information can comprise depictions of objects, things, characters, animals, or words, for a matching game, or the information can comprise numbers for a counting or mental math game. The toy is preferably sized to be hand-held.

A multi-layer toy having at least one outer layer adjacent a planar layer or a ball where both the outer layer and the adjacent planar layer or ball each contain related information such that, in play, the information on the outer layer is made to align with the related information on the adjacent planar layer or ball. The information can comprise depictions of objects, things, characters, animals, or words, for a matching game, or the information can comprise numbers for a counting or mental math game. The toy is preferably sized to be hand-held.

Facilitating navigating presentations of data structures in a computing environment. A method includes detecting user input for navigating to a location in a presentation of a data structure stored at a computing system. The method further includes as a result of detecting user input for navigating to a location in the presentation of a data structure, outputting from an accessibility compliant interface at the computing system, at least a portion of a notification identifying the location in the presentation of a data structure. The method further includes, as a result of detecting user input for navigating to a location in the presentation of a data structure, outputting from the accessibility compliant interface at the computing system, at least a portion of an enumeration of tokens for predetermined items of import relevant to the location.

Facilitating navigating presentations of data structures in a computing environment. A method includes detecting user input for navigating to a location in a presentation of a data structure stored at a computing system. The method further includes as a result of detecting user input for navigating to a location in the presentation of a data structure, outputting from an accessibility compliant interface at the computing system, at least a portion of a notification identifying the location in the presentation of a data structure. The method further includes, as a result of detecting user input for navigating to a location in the presentation of a data structure, outputting from the accessibility compliant interface at the computing system, at least a portion of an enumeration of tokens for predetermined items of import relevant to the location.

A multiplication wheel is disclosed herein. One selects a number on a first wheel, selects a number on a second wheel and aligns a tab of yet a third wheel to that of the first wheel. The third and top wheel has a plurality of portals which are covered by numbers. One selects the cover with one of the numbers in the multiplication problem, leading to the product of the two selected and aligned numbers from the first and second wheel (one of which is redundantly uncovered on the top wheel) and thus finds the product situated beneath, showing through from the second wheel.

A game piece, comprising members that are associated with one another with pivot axes, where a member provides a pivot support that allows independent rotation and or translation motions of a next member in different directions.