grallator9's channel

2 cubed (and why it isn't 6)-8KlJNeqelJQ

Endocrine system and diabetes-Ry5fTZfZHIs

How to draw a pentagon-xUvJhWlwp_A

How to draw a tangent to a circle from a point-WHym_d8QrpU

The mathematics of folding a piece of paper-B_rM_c4kn1A

How to bisect an angle

How to draw a perpendicular to a line from a point off the line

How to draw to perpendicular bisector of a line

Inventions activity taster

Wind speed and direction

An introduction to waves-1Vbv7kALTMk

Friction-s4EbMx6dIiA

Key pad electronics demo-qUOaYACZmEE

2 cubed (and why it isn't 6)-8KlJNeqelJQ

How to draw a pentagon-xUvJhWlwp_A

How to draw a tangent to a circle from a point-WHym_d8QrpU

The mathematics of folding a piece of paper-B_rM_c4kn1A