What is the relationship between the table of 7 and the beats of a human heart? No primary school student is invited to discover it.

It’s too bad. Statement of the facts and little breadcrumb trail. The beauty of the case is that it also works in dinners in town!

Matter or discipline, everyone at home
Working knowledge transversality is not a French tradition. We learn “in silts”, each teacher in his subject and in his hut. And it’s a shame because cross-learning is the only way to make sense of school, at least the idea that should draw the children. Let’s practice together, at home, this cohesion of skills.

The transversality … or the emulsion of the neurons
To learn its multiplications, it is obliged … But it serves WHAT? To understand in life sciences how “works” the human body is good … But not always easy to apprehend … Thus, Lara and Paul sincerely believe that a computer is more efficient as a machine than a heart, by example.

Come on, play the transversality card!
Question to throw as a dice, between pasta with cheese and applesauce (home 😉:

– “According to you, children, a man’s heart (or woman), it beats how many times per minute? ”

Lara raises her nose from her plate and dares: “Twice? ” Paul raises the auction: “100 times? ”

– No, on average 70 times per minute (I choose 70 for the table of 7, of course).

– “So, how many times does it take us? And first what operation are you going to do? ” – “70 by 60, normal: there’s 60 minutes in an hour! Lara waved, her hand raised high as in class, the fork and more.  Without lying, you are proud of this reasoning … So, 4,200 times per hour. Not bad, this heart … And now, so on: in an hour, in a day (I tell you right now: our heart beats 100,000 times a day !!!), in one year, in 10 years and … in 100 years?  Paul wonders: “It beats as fast as it is old, a heart? ” “No, dear friend, but for example, it needed a constant. The variables and the probabilities, you will discover this a little later “. Lara, she plunges rather into anatomy: “It’s incredible, all these millions of beats for a single machine. It does not often break down … It’s not like your computer “… Paul, a statistician, wonders again: “Should we also know how many times we have been in love in 100 years, so that the account is right! “. Paul doesn’t know yet that all loves don’t make the heart beat at the same speed … Question of experience …
Yes, multiplication can reveal great anatomical realities … But without the table of 7, we would not have known anything about it. That is why, dear Lara, dear Paul, it is vital to learn this table of 7 and all her sisters … by heart!

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