National Council of Teachers of Mathematics
Nctm: Illuminations: Robot Sketcher
Explore this awesome tool that animates a robot that contains sliding arms (like those used in hydraulics) and rotating arms like those used in rotary motors. The exploration asks students to consider how to find the area drawn by the...
University of Oxford (UK)
Oxford University of Modern History: Animals
Plants, animals, fungi, and other creatures can be sorted into different kingoms or groups. Have a go identifying how organisms are grouped in Kingdom ID or Animal ID, or have a bit of fun recognising shapes in Shadow ID. Click on the...