1718 WB1Z CH1 lesson 2

• Wiskunde
• Middelbare school
• vwo
• Leerjaar 1

Reminder: start of each lesson

- Close all apps on your iPad, only open the Studiekid app (and Lessonup app). Turn on bluetooth and wifi on your iPad
- Notebook your desk: find your homework for that lesson
- All other required materials on your desk

No phones, no headphones/earbuds

Schedule change!

1-test CH1 moved from Tuesday 19 September to Monday 18 September

Chapter 1 Solids

This lesson you will learn:
- how to correct your homework
- what faces, edges and vertices are
- what a wire model is

Homework

Homework for today was: exercises R1, R2, R3

- Any questions about the homework?
- Any words you did not know?
- How did you correct  your answers?

Plane figures (2D)

Plane figures (2D)

Solids (3D)

Solids (3D)

Faces, edges and vertices

Faces, edges and vertices

                                                    6 Faces: base (1 pentagon) and
                                                                             sides (5 triangles)
                                                          10 Edges: all lines (visible) and
                                                                                dotted lines (invisible)
                                                          6 Vertices: points where the edges
                                                                                  meet

singular

face
edge
vertex

plural

faces
edges
vertices

Wire model

In a normal drawing of a solid, all edges
you cannot see are drawn with dotted lines

With a wire model you can see all edges,
therefore no dotted lines are used in a
drawing

Homework

- Make exercises exercises 2abcd, 3, 4, 5abcd, 6 and 7 on pages 20 and 21
- Correct your answers with the solutionsbook on page 12 and further

Which words in paragraph 1.1
do you not understand?

Homework

- Make exercises exercises 2abcd, 3, 4, 5abcd, 6 and 7 on pages 20 and 21
- Correct your answers with the solutionsbook on page 12 and further