Unidad Didáctica para 1ºESO: Introducción al Dibujo Técnico

1. TECHNICAL
DRAWING
TECHNICAL DRAWING & BASIC
GEOMETRIC CONSTRUCTIONS
JULIA MENA GARCÍA

2. INDEX
1.INTRO
2.DRAWING TOOLS
3.TRIANGLES
4.PARALLELS
5.ANGLES
6.CIRCLES
7.+INFO
8.SUMMING UP

3. INTRO
INTRO

4. MAIN OBJECTIVES OF THE DIDACTIC UNIT
In this unit we are going to learn about geometric
constructions:
-How to recognise and explore two-dimensional and three
dimensional geometric shapes.
-How to compare and contrast organic and geometric
shapes in works of art.
-How to identify and use different drawing tools.
-We will be able to create new pieces of work on our own
by using geometric shapes.

5. SOME PREVIOUS CONCEPTS
Do you know what Geometry is?
Could you guess how a geometric construction is defined?
Can you remeber any geometrical shape or tool?

6. SOME PREVIOUS CONCEPTS
Geometry is about drawing shapes, angles or lines in an
accurate way.
A geometric construction is a construction of geometric
figures using only straight-edge and compass.
Draftsmen, architects, engineers and designers need to be
able to construct geometric figures. Can you think of
another profession where geometry is needed?

7. OPEN PAGE 80 ON YOUR BOOK
CAN YOU SEE ANY GEOMET RIC CONST RUCT ION IN T HESE
PICT URES? CAN YOU DESCRIBE T HEM?

8. A VOLUNT EER WILL CHOOSE ONE OF T HE BUILDINGS WITHOUT
SAYING T HE NAME. HE/SHE WILL DESCRIBE T HE PICT URE TO
T HE REST OF T HE CLASS.
BE T HE FIRST ONE TO GUESS WHICH ONE IS HE/SHE T ALKING
ABOUT !
SPEAK UP!

9. DRAWING TOOLS
DRAWING TOOLS

10. GETTING TO KNOW
THE DRAWING TOOLS

11. OPEN PAGE 82 ON YOUR BOOK
TRY TO GUESS T HE MEANING
OF T HE WORDS IN T HE BOX

12. OPEN PAGE 82 ON YOUR BOOK
NOW LISTEN AT T HE T RACK AND FILL T HE
GAPS CORRECT ING T HE MISTAKES
18

13. LET’S SEE HOW MANY CORRECT
ANSWERS YOU GOT
COMPASS

14. LET’S SEE HOW MANY CORRECT
ANSWERS YOU GOT
COMPASS
SET OF TRIANGLES

15. LET’S SEE HOW MANY CORRECT
ANSWERS YOU GOT
COMPASS
SET OF TRIANGLES
RUBBER

16. LET’S SEE HOW MANY CORRECT
ANSWERS YOU GOT
COMPASS
SET OF TRIANGLES
RUBBER
PROTACTOR

17. LET’S SEE HOW MANY CORRECT
ANSWERS YOU GOT
COMPASS
SET OF TRIANGLES
RUBBER
PROTACTOR
GRAPHITE PENCIL

18. LET’S SEE HOW MANY CORRECT
ANSWERS YOU GOT
COMPASS
SET OF TRIANGLES
RUBBER
PROTACTOR
GRAPHITE PENCIL
RULER

19. LET’S SEE HOW MANY CORRECT
ANSWERS YOU GOT
COMPASS
SET OF TRIANGLES
RUBBER
PROTACTOR
GRAPHITE PENCIL
RULER
TECHNICAL PEN

20. 18 LISTEN AGAIN
-You need a compass to draw a perfect circle.
-To draw parallel lines you can use a set of triangles.
-If you use a pencil, you can use a rubber to delete what you have
drawn.
-To measure angles we normally use a protactor.
-A graphite pencil is a basic drawing tool, for example, for
sketching.
-To measure distances or to draw straight lines we use a ruler.
-A technical pen is a specialised instrument to make lines of
constant width.

21. HOW MANY CORRECT ANSWERS DID YOU GET??