Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
202 words
A device for teaching concepts of numbers and mathematical principles comprising a base component having a surface visibly divided by lines into a hundred identical unit squares in ten by ten format, and a series of number elements having denominations 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 20, 30, 40, 50, 60, 70, 80 and 90, each of said number elements being dimensioned so that it is adapated to cover as many unit squares on said base component as is represented by that number element, each of said number element being marked with the number it represents but being free of any line markings indicating the number it represents, and at least some of said number elements being sufficiently transparent to allow said marked unit squares on said base to be visible through said number element when said number elements are placed on said base component, whereby when one of said transparent number elements, other than the element representing the number 1, is on said base component, it is visibly divided into the number of unit squares equal to the number it represents, but when said one transparent element is off said base component, it is not so divided.
Claim 2
Independent Claim
202 words
A device for teaching concepts of numbers and mathematical principles comprising a base component having a surface visibly divided by lines into a hundred identical unit squares in ten by ten format, and a series of number elements having denominations 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 20, 30, 40, 50, 60, 70, 80 and 90, each of said number elements being dimensioned so that it is adapated to cover as many unit squares on said base component as is represented by that number element, each of said number element being marked with the number it represents but being free of any line markings indicating the number it represents, and at least some of said number elements being sufficiently transparent to allow said marked unit squares on said base to be visible through said number element when said number elements are placed on said base component, whereby when one of said transparent number elements, other than the element representing the number 1, is on said base component, it is visibly divided into the number of unit squares equal to the number it represents, but when said one transparent element is off said base component, it is not so divided.
Claim 3
Dependent Claim
39 words
A device according to Claim 1 wherein at least some of said number elements have dark sides whereby individual number elements can be distinguished when two or more such elements are placed on said base component in abutting relationship.
Claim 4
Dependent Claim
27 words
A device according to Claim 1 wherein said base component and each of said number elements have means for holding said number elements on said base component.
Claim 5
Dependent Claim
52 words
A device according to Claim 3 wherein each of said unit squares of said base component is provided with a peg and each number element is formed with a hole in each portion thereof which corresponds to a unit square, each of said holes being arranged to receive one of said pegs.
Claim 6
Dependent Claim
59 words
A device according to Claim 1 wherein a quota of said number elements is provided, said quota comprising ten of each of said number elements 1 to 10, five of said number elements 20, three of said number elements 30, two of said number elements 40 and 50, and one of said number elements 60, 70, 80, 90, 100.
Claim 7
Dependent Claim
30 words
A device according to Claim 1, wherein each of said number elements representing the numbers 10, 20, 30, 40, 50, 60, 70, 80 and 90 is 10 unit squares long.
Claim 8
Dependent Claim
17 words
A device as claimed in Claim 1, wherein each of said number elements is a flat template.
Claim 9
Dependent Claim
19 words
A device as claimed in Claim 1, which includes at least one number element having a denomination of 100.