Review ch.5-ch.6 (t1b)

• Wiskunde
• Middelbare school
• vwo
• Leerjaar 1

Review 

ch.5-ch.6

March 8th, 2022

t1b

13:15

Go to lessonup.com and type in the code below!

Schedule

• Programme                                                      5 min
• Review: simplifying letters                      15 min
• Summary ch.6                                               10 min
• Some silent practice                                  20 min
• Gooseboard!

Programme

Test next week:

Ch.5.1-5.3
(rounding, calculator, etc.)

Ch.6
(squares, roots,
parabolas, letters)

Review question 1:
Simplify.

3a⋅5b=...

1. 8ab
2. 8a
3. 15ab
4. 15b

Review question 2:
Simplify.

3a+5b−2a+2b=...

1. a
2. 8ab
3. 7b
4. a + 7b

Review question 3:
A rectangle has a length of 2x,
and a width of 3y.
What is the area?

1. 5xy
2. 6xy
3. 2x + 3y
4. 4x + 6y

Review question 4:
A rectangle has a length of 2x,
and a width of 3y.
What is the perimeter?

1. 5xy
2. 6xy
3. 2x + 3y
4. 4x + 6y

Review question 5:
Simplify.

5x⋅−2y⋅−z=...

1. -10xyz
2. -7xyz
3. 10xyz
4. Cannot be simplified

All 

Intended Learning Outcomes

At the end of the lessons you could...

• Use and round decimal numbers (realistically)
• Use your calculator correctly for crazy calculations
• 
  
• Do calculations with squares and square roots
• Fill in quadratic formulas and draw their graphs (parabolas)
• Simplify letters with adding/subtracting/multiplying

a -->

1. -72
2. -24
3. 24
4. 72

b -->

1. -17
2. -11
3. 11
4. 17

Calculate:

√​81​​​⋅3​2​​−√​49​​​⋅2​2​​

1. 27
2. 53
3. 63
4. 98

Calculate (write it out!):

(​2​​1​​)​2​​⋅√​1​49​​32​​​​​

1. 1​7​​2​​
2. 5​7​​1​​
3. ​14​​9​​
4. ​28​​9​​

What happens when I fill in
x = 4 or x = -4
into a quadratic formula like...

y=​2​​1​​x​2​​−4

1. The answers are different
2. The answers are the same
3. It depends on the formula
4. It's impossible to tell

Step 1

Step 2

Step 3

Step 4

How to draw a graph

Plot the points

Draw a curve

Make a table

Draw a coordinate system

1. The blue graph fits the table
2. The red graph fits the table
3. The orange graph fits the table
4. The green graph fits the table

What do YOU want to practice with?

Calculate squares and square roots

Use quadratic formulas and draw graphs

Simplify letters

Some silent practice

p.36:

1, 2

p.32:

1, 2, 7

p.36:

3, 4, 5, 6

p.32:

3, 8, 9, 10

p.36:

7, 8, 9, 10, 11

p.32:

4, 5, 6

Gooseboard!

This is where one group member uploads one picture with all of the calculations.