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Teaching & Learning Plan: <strong>Geometric</strong> <strong>Sequences</strong><br />
Student Learning Tasks: Teacher Input<br />
Wrap up and Homework<br />
»»<br />
What do a, r and n stand for in relation<br />
to geometric sequences»<br />
»<br />
»<br />
»<br />
»<br />
»<br />
»<br />
»»<br />
What is the formula for the general term<br />
of a geometric sequence»<br />
Student Activities:<br />
Possible Responses<br />
»<br />
»»<br />
a is the first term, r is<br />
the common ratio, the<br />
term we multiply the<br />
preceding term by to<br />
get the next term. n is<br />
the term number – the<br />
position of the term in<br />
the sequence.»<br />
»»<br />
T n = ar n-1<br />
Teacher’s Support and<br />
Actions<br />
» Write the formula<br />
and the meaning<br />
of a, r and n on the<br />
board.»<br />
»<br />
»<br />
»<br />
»<br />
»<br />
»<br />
»<br />
»<br />
»<br />
Assessing the Learning<br />
Teacher Reflections<br />
»»<br />
Complete the following question on<br />
Section A: Student Activity 1.<br />
» » Depending on the<br />
progress of the<br />
students to date<br />
on the activity<br />
select appropriate<br />
questions for<br />
homework.<br />
© <strong>Project</strong> <strong>Maths</strong> Development Team 2012 www.projectmaths.ie KEY: » next step • student answer/response 6
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