Modelling Addition
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Lesson details
Key learning points
- In this lesson, we will be able to model addition of a positive number as a translation on the number line and use this model to develop strategies for addition.
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7 Questions
Q1.
Choose which option fills the gap best; The ______________________ of a number is it’s distance from zero.
length
positive
sign
Q2.
True or false: The absolute value of a number is always greater than the number itself.
True
Q3.
Find the absolute value of the number -3.
-3
6
I'm not sure
Q4.
Find the absolute value of the number 0.
Doesn't exist
infinity
negative infinity
Q5.
Choose the correct inequality system to fill the space -6 ___ -7
<
=
Q6.
Choose the correct inequality system to fill the space -13 ___ 6
=
>
Q7.
Which two integers have the same absolute value and have a distance between them of 100?
100 and 0
150 and 50
40 and 60
5 Questions
Q1.
Which word best fills in the gap in this sentence: We can think of addition as _____________ a point on the number line.
fixing
turning
Q2.
Write a calculation that the number line is modelling
-3 + 8
(-5) - 3
3 + (-8)
Q3.
Calculate (-33) + 25
-58
58
8
Q4.
Calculate (-29) + 29
-38
19
38
Q5.
Find the value of a:
-15
-25
+25