# Resources tagged with: Pinboard/geoboard

### There are 7 results

Broad Topics >

Physical and Digital Manipulatives > Pinboard/geoboard

##### Age 14 to 16

Challenge Level

What is the total number of squares that can be made on a 5 by 5 geoboard?

##### Age 14 to 16

Challenge Level

Polygons drawn on square dotty paper have dots on their perimeter (p) and often internal (i) ones as well. Find a relationship between p, i and the area of the polygons.

##### Age 11 to 14

Challenge Level

Imagine an infinitely large sheet of square dotty paper on which you can draw triangles of any size you wish (providing each vertex is on a dot). What areas is it/is it not possible to draw?

##### Age 11 to 14

Challenge Level

Can you find triangles on a 9-point circle? Can you work out their angles?

##### Age 11 to 14

Challenge Level

What is the relationship between the angle at the centre and the
angles at the circumference, for angles which stand on the same
arc? Can you prove it?

##### Age 11 to 14

Challenge Level

Can you make a right-angled triangle on this peg-board by joining up three points round the edge?

##### Age 14 to 18

How do you write a computer program that creates the illusion of stretching elastic bands between pegs of a Geoboard? The answer contains some surprising mathematics.