Reordering

https://learningapps.org/display?v=pn1w7wt3j17

https://learningapps.org/display?v=p4f88hmmk17

https://learningapps.org/display?v=pvkz8cub317

https://learningapps.org/display?v=pezysibtn17

https://learningapps.org/display?v=p4c73qebk17

https://learningapps.org/display?v=p1p77btb217