Ontario Teachers Federation (OTF) Connect Webinar - Exploring Proportional Reasoning Through a 4-Part Math Lesson Slide Deck.
Delivered on February 2nd, 2015 via webinar.
10. Example 1
(a) List all combinations of three out of
the four colours: red, blue, white, and
green.
11. Example 1
(a) List all combinations of three out of
the four colours: red, blue, white, and
green.
(b) Considering the colour combinations
as arrangements with indistinguishable
elements, check the number of
combinations of three out of four items.
42. ORIGINAL QUESTION
@MathletePearcewww.tapintoteenminds.com
Mr. Pearce stacks reams of paper vertically
against a wall. If the height of 5 reams is
24.75 cm and the height of the room is
273 cm, how many reams of paper would
he need to reach the ceiling?FUN, RIGHT?
AnswerKey:55.15
44. Mr. Pearce stacks reams of paper vertically
against a wall. If the height of 5 reams is
24.75 cm and the height of the room is
273 cm, how many reams of paper would
he need to reach the ceiling?
ACT 1:
@MathletePearcewww.tapintoteenminds.com
45. @MathletePearcewww.tapintoteenminds.com
Mr. Pearce stacks reams of paper vertically
against a wall. If the height of 5 reams is
24.75 cm and the height of the room is
273 cm, how many reams of paper would
he need to reach the ceiling?
ACT 1:
46. ACT 2:
@MathletePearcewww.tapintoteenminds.com
Mr. Pearce stacks reams of paper
vertically against a wall. If the
height of 5 reams is 24.75 cm and
the height of the room is 273 cm,
how many reams of paper would he
need to reach the ceiling?
47. ACT 3:
@MathletePearcewww.tapintoteenminds.com
Mr. Pearce stacks reams of paper
vertically against a wall. If the
height of 5 reams is 24.75 cm and
the height of the room is 273 cm,
how many reams of paper would he
need to reach the ceiling?
AnswerKey:55.15
48. ACT 3:
@MathletePearcewww.tapintoteenminds.com
Mr. Pearce stacks reams of paper
vertically against a wall. If the
height of 5 reams is 24.75 cm and
the height of the room is 273 cm,
how many reams of paper would he
need to reach the ceiling?
53. How many packs of paper would it
take to reach the ceiling?
@MathletePearcewww.tapintoteenminds.com
How many packs of paper
will it take to reach a
height of 273 cm?
packs of paper
height
54. How many packs of paper would it
take to reach the ceiling?
@MathletePearcewww.tapintoteenminds.com
How many packs of paper
will it take to reach a
height of 273 cm?
packs of paper
height
118. @MathletePearcewww.tapintoteenminds.com
Think of an example involving
proportional reasoning that you could
introduce using context and visuals.
ratios rates fractions percentagesunit rates
4. Consolidate3. Connections
2. Inquiry1. Minds On
-Part Math Lesson4