While studying about conservation and reading our class novel Just Grace Goes Green, the students built “Something out of Nothing” with reusable materials. Our something that we made was a robot! But of course we didn’t just build a robot, we challenged them by making them find equivalent fractions in order to collect their robot parts! We gave them a fraction for their body, arms, legs, nose, and eyes, and they were to use their knowledge of multiplying or dividing to find four other equivalent fractions from their Time to Show What You Know handout for their parts. This was also a race! The groups that accurately completed the challenge were able to be more selective with their choosing of parts of reusable materials!