April 21st
t3d
11:30
Homework on
tan()=......
Today's exercises
Math A/C
24, 26, 27, 29, 31, 32
Math B/D
23, 27, 31, 32, 34

Discuss 26 later
1 / 18
Slide 1: Tekstslide
WiskundeMiddelbare schoolvwoLeerjaar 3

In deze les zitten 18 slides, met interactieve quizzen en tekstslides.

Lesduur is: 60 min

## Onderdelen in deze les

April 21st
t3d
11:30
Homework on
tan()=......
Today's exercises
Math A/C
24, 26, 27, 29, 31, 32
Math B/D
23, 27, 31, 32, 34

Discuss 26 later

#### Slide 1 -Tekstslide

Schedule
• Homework check                                           10 min
Announcements
• Review: tangent                                             10 min
•                                                                                15 min
• Practice                                                             20 min
• Finally, some Gooseboard!                       20 min
tan()=......

Programme

Announcements
Got It!

#### Slide 4 -Tekstslide

vs.
its angle of elevation

#### Slide 5 -Woordweb

Last lesson's
Intended Learning Outcomes

At the end of the lesson you could...
tangent and inverse tangent

#### Slide 6 -Tekstslide

(inverse) tangent

shift --> tan
gets you tan
tan()=runrise
tan(runrise)=
1
1

#### Slide 7 -Tekstslide

Review (5 min)
A hill has an angle of elevation of 25 degrees. The run is 130 meters.
An elevator travels along the rise of the hill at a speed of 4 km/h. How long will it take to reach the top?

#### Slide 8 -Tekstslide

Today's
Intended Learning Outcomes

At the end of the lesson you can...
1. Use opposite and adjacent sides in calculations with tangent

Tangent
tan()=runrise

#### Slide 10 -Tekstslide

Tangent
____________________
tan()=runrise

#### Slide 11 -Tekstslide

Tangent
____________________
tan()=runrise

Example
tan(M)=AO
tan(M)=LMKL
tan(AO)=M
1
tan(LMKL)=M
1

#### Slide 13 -Tekstslide

Example

Calculate      M.
15
22

#### Slide 14 -Tekstslide

(inverse) tangent

shift --> tan
gets you tan
1
1

#### Slide 15 -Tekstslide

Fill in.
In the triangle on the right,
the rule is
tan(B)=...
A
5.64.2
B
5.67
C
74.2
D
4.25.6

Calculate __A.
Round to the
nearest tenth.
A
36.9°
B
64.4°
C
53.1°
D
9.3°

#### Slide 17 -Quizvraag

Practice

Last 20 minutes: Gooseboard
Chapter 7
Math A/C
24, 26, 27, 29, 31, 32
Math B/D
23, 27, 31, 32, 34

Discuss 26 later