by Lara Francisco
Now ... moving on to the last challenge - #8
Our Math Champs are:
Primary Champ -Samara in Ms. Shaw's class! Samara actually worked on ALL four challenges and did an amazing job!
Intermediate Champ - Dominique in Ms. Goldman's class! Dominique was one of the very few who attempted Level D this time!
The Classroom Winners are:
Congratulations to all of you - Well done!
As you have probably figured out by now, I LOVE sharing student work with you. This week is no exception.
Level D was hard. Level D is always hard. I do not have the answers to these problems, and sometimes Level D is not within my personal realm of understanding, no matter how hard I try. I knew there had to be a "mathematical way" to solving the most recent one, but I had to literally draw it out: 1 time line showing all 3 clocks by minutes, marking when each would chime. I am a pattern seeker, so after many tick marks of only 2 clocks aligning (now and then) and seeing no possible pattern for the 3 of them to align, I stopped (maybe after 100+ or so ticks). Then while looking through the student entries, I noticed that a few of them said, "Yes, they will align after 207 ticks." WAIT ... WHAT?
Very few students even attempted Level D for this last challenge, and 4 of them had the same answer. That meant I needed to go back to my time line and continue trying - I must have stopped too soon. Sure enough - they were right!
(Notice the difference between their solving process and mine?)
As always, it is a great privilege to look through every child's work on these challenges.
There will not be a Math Challenge this week, but look for #9 to be posted next Monday.
Thank you for all of the Math Love everyone!