Professor Reginaldo 6º A,C,D,E

https://www.youtube.com/watch?v=QBWTpJHokik

https://pt-pt.khanacademy.org/math/early-math/cc-early-math-measure-data-topic/cc-early-math-time/e/tell-time-to-hour-or-half-hour

https://pt-pt.khanacademy.org/math/early-math/cc-early-math-measure-data-topic/cc-early-math-time/e/telling_time_0.5

https://pt-pt.khanacademy.org/math/early-math/cc-early-math-measure-data-topic/cc-early-math-time/e/telling_time