Compartido por Francisca Arpa
IRRATIONAL NUMBERS 3º ESO
To
introduce irrational numbers I’ll begin
with this video
After watching
the video I’ll ask them some questions
about it
In pairs, students will classify numbers as rational or
irrational fminutes using this worksheet as example.
Each student will choose a number and ask the other
student if the number is rational or irrational, the answer must be similar to
the example.
At the end of
the activity they must elaborate their own
worksheet with the numbers they have chosen
Group work
This activity is meant to reinforce definitions and
fluency in describing irrational numbers and rational numbers.
The class will
be organize in groups of 4 students and one by one, each student in the group is going
to take one of these cards and
talk about the chosen card:
Tell what an irrational number is in your own
words.
Provide two
examples that show that the statement is false. Lydia said that all square
roots are irrational numbers.
Do the
expressions 
and 
have the same value? Explain your thinking.
and have the same value? Explain your thinking.
Provide two
examples that show that the statement is false. Explain your thinking.
Zoe said that
an irrational number can be expressed as a terminating decimal.
PROJECT
Students, in
groups of 4 people, will chose one of the famous irrational number : π (pi), e
( Euler’s number) , φ ( golden ratio). They will have a week to look for
information about it and make a presentation or a poster. In plenary, they will
show their presentation or poster
No hay comentarios:
Publicar un comentario