Volume of Similar Figures - Ice Cube tray.

thingiverse

This manipulative aids students in defining and investigating the relationship between length and volume of similar figures, as well as that between centimeters cubed and milliliters. For optimal results, print the tray using flexible material. You can fill the negative space with water and freeze it, or alternatively, measure out specific amounts of water for students to use. The shapes provided allow students to measure using a ruler, and you can access these resources online through Tinkercad at https://tinkercad.com/things/lRddqxeMmC9 (Ice Cube Tray) and https://tinkercad.com/things/fnOjuHKUeTC (Shapes). If you've successfully printed this with flexible plastic for making ice cubes, please share your experience!