Science Who is Alexander Graham Bell Miss Simkin

Science Who is Alexander Graham Bell? Miss Simkin

Lesson Agenda Star words Helping with deafness Sound The telephone Panic over a patent 2

In this lesson, you will need: Paper Pencil Coloured pencil Ruler �� �� ✎ �� 3

Star Words � � sound deaf vibrations � particles � � � patent � �

Alexander Graham Bell 1847 Scotland Image: public domain (Wikimedia) 5

Helping with deafness 6

Helping with deafness Deaf Being unable to hear or having impaired hearing. 7 ��

Helping with deafness Draw a timeline: 8

Helping with deafness 1876 Alexander Graham bell invented the telephone. 9

Helping with deafness 1876 1878 Alexander Graham Thomas Edison bell invented the telephone. microphone Images from Pixabay. 10

Helping with deafness 1876 Alexander Graham bell invented the telephone. Images from Pixabay. 11 1898 1878 Thomas Edison invented the microphone Miller Hutchinson invented the first electric hearing aid.

Helping with deafness Answer the question: 1. Why would it be fair to say that the work of (at least) three scientists led to the invention of the electric hearing aid? 12

Helping with deafness Mark your work: 1. Miller Hutchinson invented the electric hearing aid but his invention wouldn’t have been possible without the work of Thomas Edison who invented the microphone and Alexander Graham Bell who invented the telephone. 13

Sound 14

Sound �� Sound Vibrations that spread through the air. 15

Sound Answer the questions: 1. Sound is ____________ that spread through the air. 2. When something makes a sound what happens to the particles in the air? i) They stop moving ii) They wobble and vibrate iii) They change size 16

Sound Mark your answers: 1. Sound is vibrations that spread through the air. 1. When something makes a sound what happens to the particles in the air? ii) They wobble and vibrate 17

The telephone 18

The telephone 1876 Image: in public domain, (wikimedia) 19

The telephone Draw a diagram to show a telephone works: 20

Panic over a patent 21

Panic over a patent �� patent A grant of protection for an invention. 22

Panic over a patent Image: in public domain, (wikimedia) 23

Panic over a patent Elisha Gray Image: in public domain, (wikimedia) 24

Panic over a patent Answer the questions: 1. What is a patent? 1. Who else invented the telephone and why didn’t they get the patent? 25

Panic over a patent Mark your answers: 1. A grant of protection for an invention. 1. Elisha Gray also invented the telephone but did not get the patent because Alexander Graham Bell’s lawyer beat his lawyer to the patent office! 26

� � � Great job today! � 27 � � �

Share your work with Oak National If you'd like to, please ask your parent or carer to share your work on Instagram, Facebook or Twitter tagging @Oak. National and #Learnwith. Oak You can also tag @Teach_STEMinism

End of lesson quiz 29