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Prior Knowledge: Arithmetic with Letters
C1 Arithmetic with Letters
Mr. Fintelman (FNL)
Monday September 2nd
2024
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Slide 1:
Tekstslide
Wiskunde
Middelbare school
vwo
Leerjaar 2
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13 slides
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tekstslides
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Lesduur is:
45 min
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C1 Arithmetic with Letters
Mr. Fintelman (FNL)
Monday September 2nd
2024
Slide 1 - Tekstslide
Date
Monday September 2nd 2024
Paragraph
Prior Knowledge: Arithmetic with Letters
Pages from the handbook
Pag. 10-11
Subject
Arithmetic with Letters
Today is the day...
Slide 2 - Tekstslide
I can already…
… describe letter variables.
… explain the rules for addition, subtraction, and multiplication with letter variables.
Prior Knowledge
Slide 3 - Tekstslide
Examples of lettervariables
Slide 4 - Tekstslide
After this lesson, I can…
… simplify products with letter variables.
… simplify additions and subtractions with letter variables.
… collect like terms to simplify letter variables.
… simplify letter variables by applying the order of operations.
Goals
Slide 5 - Tekstslide
Simplifying - Please write along.
Simplify these expressions:
6
a
⋅
7
b
=
3
x
+
4
x
=
5
x
y
+
4
x
y
=
1
5
a
b
+
4
0
a
c
=
7
⋅
−
3
p
q
=
−
3
x
+
7
x
−
3
x
=
Slide 6 - Tekstslide
Simplifying - Please write along.
Simplify these expressions:
6
a
⋅
7
b
=
4
2
a
b
3
x
+
4
x
=
7
x
−
3
x
+
7
x
−
3
x
=
x
5
x
y
+
4
x
y
=
9
x
y
1
5
a
b
+
4
0
a
c
=
k
.
n
.
7
⋅
−
3
p
q
=
−
2
1
p
q
Slide 7 - Tekstslide
Simplifying - First on your own, then we'll discuss
Simplify these expressions:
2
y
⋅
−
5
y
=
8
y
−
6
y
=
4
m
+
1
2
=
−
2
a
b
c
+
1
8
a
b
c
=
timer
1:00
If everything is
correct
within a minute, then you may skip Exercise 2 + 3.
Finished: Close your notebook and place it on the corner of your desk.
−
3
b
⋅
8
a
=
−
6
p
+
7
p
−
p
=
Slide 8 - Tekstslide
Simplifying - First on your own, then we'll discuss
Simplify these expressions:
2
y
⋅
−
5
y
=
−
1
0
y
2
8
y
−
6
y
=
2
y
−
3
b
⋅
8
a
=
−
2
4
a
b
−
6
p
+
7
p
−
p
=
0
4
m
+
1
2
=
n
.
p
.
−
2
a
b
c
+
1
8
a
b
c
=
1
6
a
b
c
Slide 9 - Tekstslide
Simplifying - Please write along.
Simplify these expressions:
4
x
−
5
y
+
7
x
+
3
y
=
3
a
⋅
5
b
−
9
b
⋅
a
=
2
x
⋅
8
y
+
7
x
⋅
3
y
=
Slide 10 - Tekstslide
Simplifying - Please write along.
Simplify these expressions:
4
x
−
5
y
+
7
x
+
3
y
=
4
x
+
7
x
−
5
y
+
3
y
3
a
⋅
5
b
−
9
b
⋅
a
=
1
5
a
b
−
9
a
b
=
6
a
b
2
x
⋅
8
y
+
7
x
⋅
3
y
=
1
6
x
y
+
2
1
x
y
=
3
7
x
y
=
1
1
x
−
2
y
Slide 11 - Tekstslide
Worktime
You work neatly by…
… reading the
theory
(again) before asking a question to your classmate.
…
raising a hand
before asking a question to the teacher.
… if the teacher is busy, remember your question and
move on
.
Help:
Exercises: N/A
Assignments:
Pages: 10-11
Exercises: 1, 2, 3, 4, 5 and 6.
Assignments from the planning of WEEK 1:
Extra:
Exercises: 7
Slide 12 - Tekstslide
Now I can…
… simplify products with letter variables.
… simplify additions and subtractions with letter variables.
… collect like terms to simplify letter variables.
… simplify letter variables by applying the order of operations.
Reflection
Slide 13 - Tekstslide
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