Unit 3 Quadratics Relations 1 Worksheet Page 12
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45Unit 3 Day 2:The Parabola
MBF 3C
Description
Materials
BLM 3.2.1 to BLM
Students will learn to identify important parts of a parabola
3.2.3
Students will apply parabola vocabulary to parts of a graph which represents a
real-life event
Assessment
Opportunities
Minds On…
Independent Work → Review/Extend
As students enter the class they receive BLM 3.2.1 to work on independently. Instruct
them to ignore the #1 to #5 blanks at the bottom of the page for now.
Whole Class → Discussion
After the class has finished with the worksheet, review BLM3.2.1 with the students.
When each important item is touched upon (maximum profit – vertex, break even
points – zeros, etc) make note if further investigation may be needed of these
concepts.
Action!
Independent Work → Read
Distribute BLM 3.2.2 and have students explore on the first page the vocabulary of the
parabola
Whole Class → Discussion
Discuss second page of BLM 3.2.2 and use it to detail the important aspects of a
parabola. Fill in the blanks with the students and highlight the important aspects of
the parabola.
Consolidate
Whole Class → Graphing Challenge
Debrief
Provide each student with BLM 3.2.3 (double sided).
Students draw parabolas from your instructions onto the mini grids. It can be a row vs
row challenge to draw the most accurate parabola or a challenge to each member of
the class.
Parabola 1:
Draw the parabola with vertex of (3, 4) and zeros at 1 and 5
Parabola 2:
Draw the parabola with a minimum value of -8, zeros at 2 and -2 and y – intercept of -
8.
[Vertex should be at (0, -3)]
Parabola 3:
Draw the parabola with a zero at (1, 0) the vertex at (3, -4) and y – intercept of (0,5)
[This parabola should pass through (5, 0) and (6, 5) due to symmetry]
Parabola 4:
Draw the parabola with axis of symmetry of x = -2, optimal value of -3. This parabola
has no zeros.
[Parabola has to open down, must have vertex at (-2, -3) and have proper shape (but its
width is not important)]
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