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The Chefs Amazing Soup
Transcript of The Chefs Amazing Soup
Adding and Subtracting Integers
In a far-off land, there was once a team of amazing chefs who cooked up the most wonderful soups ever imagined. They prepared their mixtures over a huge cauldron, and their work was very delicate and complex. During the cooking process, they frequently had to
change the temperature
of the cauldron in order to bring out certain flavors and to cook the soup to perfection.
Changing the temperature
They adjusted the temperature of the soups either by
cubes to the cauldron or by
some of the
cubes that were already in the cauldron.
cubes were similar to ice cubes except they didn't melt, and the
cubes were similar to charcoal briquettes, except they didn't lose their heat.
Zero Pairs (+1 + -1 = 0)
If the number of
cubes in the cauldron was
the same as
the number of
cubes, the temperature of the cauldron was 0 degrees on their temperature scale.
cube that was
the cauldron, the temperature went
1 degree; for each
, the temperature went
the temperature 1 degree and each
it 1 degree.
cubes were dumped into the cauldron. Then the temperature would be
by 6 degrees altogether, since
4 of the 10 cold cubes would balance out the 4 hot cubes
, leaving 6 cold cubes to lower the temperature 6 degrees.
The chefs would write +4 + -10 = -6 to represent their actions and the overall final results of those actions.
If they added 3 hot cubes and then removed 2 cold cubes, the combined result would be to raise the temperature 5 degrees.
In that case, they would write +3 - -2 = +5
And if they wrote -5 - +6 = -11 it would mean that first 5 cold cubes were added to the cauldron and then 6 hot cubes were removed, and that the combined result was to lower the temperature 11 degrees.
One HOT cube
One COLD Cube
hence the name,
What happens when we add one hot and one cold?
4 HOT Cubes
10 COLD Cubes
6 degrees lower
3 HOT Cubes added
There were already some zero pairs in there!
Take out 2 Cold Cubes
What's left behind?
Wondering what we might do about the subtraction part?
After we get a little more practice adding integers, we'll revisit the story and begin subtracting integers.
If you want to practice more adding integers, try this website:
We'll be using this website for more practice later in the week as well.
Now you try it!
Using the worksheet you got at school today, answer the questions about adding integers! Try to come up with a rule and be prepared to discuss your findings with your table group tomorrow! Refer back to the story if you need.
Lose your paper? No worries!
Find it here: