# 4.1 angles and lines

program
recap chapter 1

start 4.1

homework
1 / 10
Slide 1: Slide
WiskundeMiddelbare schoolvwoLeerjaar 1

This lesson contains 10 slides, with interactive quizzes and text slides.

## Items in this lesson

program
recap chapter 1

start 4.1

homework

line
line segment
ray

#### Slide 2 -Drag question

What does parrallel stand for?

#### Slide 3 -Open question

what does perpendicular stand for?

#### Slide 4 -Open question

chapter 4.1 Angles
vertex - hoek
arms - benen
right angle - rechte hoek
acute angle- scherpe hoek
obtuse angle- stompe hoek
straight angle- rechte hoek
full angle- volle hoek

#### Slide 5 -Slide

question
first make the exercise by dragging the pictures to the right box

second try to think what the numbers stand for. can you see a pattern

right angle
acute angle
obtuse angle
straight angle
full angle

#### Slide 7 -Drag question

the numbers in the pictures stand for ........

#### Slide 8 -Open question

make exercise
2,3,4 of chapter 4.1 on page 144-145

deadline tomorrow at 17:00 in Classroom

#### Slide 9 -Slide

using of sightlines