Devices for providing language-like abilities for dogs. Using polygonal layouts, audible, scent, visible and other cues, the devices provide an efficient and novel ability to communicate with dogs in a granular manner. Devices for capturing and releasing scents are provided. Novel button designs and functions are taught with particular suitability for animal training.

Devices for providing language-like abilities for dogs. Using polygonal layouts, audible, scent, visible and other cues, the devices provide an efficient and novel ability to communicate with dogs in a granular manner. Devices for capturing and releasing scents are provided. Novel button designs and functions are taught with particular suitability for animal training.

Devices for providing language-like abilities for dogs. Using polygonal layouts, audible, scent, visible and other cues, the devices provide an efficient and novel ability to communicate with dogs in a granular manner. Devices for capturing and releasing scents are provided. Novel button designs and functions are taught with particular suitability for animal training.

A first tread pattern display system for new tread patterns includes a first upper sidewall part, a second upper sidewall part, a first tread shoulder part, a second tread shoulder part, and a middle tread part. The first upper sidewall part removably attaches to the first tread shoulder part by a plurality of projections extending from the first upper sidewall part to corresponding recesses in the first tread shoulder part.

An object of a robot educational material is to acquire a mechanism of a robot. The robot educational material includes the robot for which middleware for hardware input-output is usable, and a textbook including at least a manual for operating the robot as desired.

The present invention includes a set of stacking blocks designed to resemble the Arabic numerals 1-10. Each number block is height proportional to its value, and they can be stacked vertically. This feature allows students to see the relationship between numbers, and discover math concepts as they stack or play.

The present invention includes a set of stacking blocks designed to resemble the Arabic numerals 1-10. Each number block is height proportional to its value, and they can be stacked vertically. This feature allows students to see the relationship between numbers, and discover math concepts as they stack or play.

The present invention includes a set of stacking blocks designed to resemble the Arabic numerals 1-10. Each number block is height proportional to its value, and they can be stacked vertically. This feature allows students to see the relationship between numbers, and discover math concepts as they stack or play.

The present invention includes a set of stacking blocks designed to resemble the Arabic numerals 1-10. Each number block is height proportional to its value, and they can be stacked vertically. This feature allows students to see the relationship between numbers, and discover math concepts as they stack or play.

An apparatus and method for learning math includes a template of one or more mathematical exercises that are solved using conjugates of mathematical operations and numbers. Each exercise includes two or more math expressions, one or more math relationships, and one or more blanks. A plurality of action tokens are provided including a plurality of operator-number tokens displaying a conjugate of a mathematical operation and a number. A given number of action tokens are provided to one or more players to provide each of the players with a hand of action tokens. Turns are taken by each of the players, to try to solve said template by playing from the player's hand at least one operator-number token to fill-in at least one blank, thereby creating a correct mathematical sentence based on the template. The goal is to complete correctly the exercises.