How can these shapes be cut in half to make two shapes the same
shape and size? Can you find more than one way to do it?
Cuisenaire Without Grid
Age 5 to 11 Challenge Level:
Full Screen Version
Click on 'Rods', to choose a Cuisenaire rod and then drag it onto the background. More rods can be added in a similar way and aligned as you wish. A rod can be rotated by $90^\circ$ by clicking any key whilst dragging. For a version with a squared background see here.
You could use this environment for all sorts of purposes - perhaps to explore addition and subtraction, factors and multiples or ideas about fractions.
For more ideas, look at the Notes section, or go to this page where there is a collection of Cuisenaire problems.
The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the
NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to
embed rich mathematical tasks into everyday classroom practice.