Meece Middle School
Mrs. Robin Crawford
Unit 3: Proportions and Variation
Class: Math
Grade: 7 Days in Unit: 21
Objective:
Distinguish between proportional and non-proportional situations.
Use proportions to solve problems.
Compare, contrast, and convert between measurement systems.
Graph proportional relationships and identify the unit rate as the slope of the related linear function.
Distinguish direct variation from other relationships, including inverse variation.
Time
Lesson and Topic
Standard
Learning Target
Vocabulary
Resources
2 days
3.1 Ratios and Rates
7.RP.1
I can:
7.RP.2b
find a ratio, rate, or unit
rate.
Ratio
Rate
Unit rate
Day 1:
Journal: Define vocabulary and practice examples of
each learning target.
Lesson 3.1 Practice A
find a unit rate from a table
or graph.
Page 1 of 5
Day 2:
Activity: Use sale papers to find unit rates of various
items.
Journal: review notes
Lesson 3.1 Practice B
Time
Lesson and Topic
2 days
3.2 Slope
Standard
Learning Target
Vocabulary
Resources
I can:
slope
Day 1
Journal: Define vocabulary. Discuss steepness of a line
7.RP.2b
find the slope of a line.
Thoughtful Ed: Comparing unit rates (record and
practice journal)
interpret the slope of a line
as a rate when the equation
of the line models a real-life
situation.
2 Days
3.3 Proportions
7.RP.2a
I can
use equivalent ratios to
determine whether two
ratios form a proportion.
2 Days
3.4 Writing Proportions
7.RP.2a
Lesson 3.2 Practice A
Proportion
Proportional
Cross products
use the cross products
property to determine
whether two ratios form a
proportion.
I can :
write a proportion.
solve a proportion using
mental math.
Page 2 of 5
Day 2
Journal: review notes
Record and Practice Journal: Comparing two rates
graphically
Lesson 3.2 Practice B
Day 1
Journal: Define vocabulary
Use cross products to classify if ratios form a proportion
Smartboard examples for each student to practice
Lesson 3.3 Practice A
Day 2
Journal: review notes
Brainpop: Proportions video and quiz
Lesson 3.3 Practice B
Day 1:
Journal: Setting up proportions using words
Thoughtful Ed: Paired learner activity- using string to
estimate the distance around someone’s neck (pg T116)
Lesson 3.4 Practice A
Day 2
Journal: Review notes
Lesson 3.4 practice B
Time
Lesson and Topic
2 days
3.5 Solving Proportions
Standard
Learning Target
Vocabulary
I can:
Day 1:
Journal: Examples of how to solve proportions using
multiplication, cross products, and using a point on the
graph.
7.RP.2a
7.RP.2b
7.RP.2d
Resources
solve proportions using
multiplication.
3.5 Practice A
solve proportions using the
cross products property.
Day 2:
Journal: review notes
“Criss Cross” game (pg 123 teacher manual)
3.5 Practice B
use a point on the graph of a
proportional relationship to
write and solve a
proportion.
1 Day
Quiz Lessons 3.1-3.5
Standards
from these
lessons
All targets from these lessons.
All vocabulary
associated with
lessons
quiz
2 days
3.6 Converting
Measures Between
Systems
7.RP.3
I can:
Customary system
Metric system
Day 1:
Journal: record customary and metric system
equivalents
Guided Practice
Lesson 3.6 Practice A
Day 2:
Journal: Review Notes
Lesson 3.6 Practice B
use ratios or proportional
relationships to convert
units.
compare units.
convert rates.
Page 3 of 5
Time
Lesson and Topic
3days
3.7 Direct Variation
Standard
Learning Target
Vocabulary
Resources
I can
Direct variation
Day 1:
Journal: write properties and equations for direct
variations through the use of examining a graph.
3.7pg 140 #3-29 odd
Day 2:
Journal: Review Notes
Group work: Find the graph that doesn’t belong and
why
3.7 Practice A
Day 3:
Journal: review notes
Discussion of direct variation in the real-world using
ramps.
Puzzle 3.7
Day 4:
Journal: review notes
3.7 Practice B
Day1:
Journal: compare qualities of an indirect variation graph
and the equation associated with it.
Guided Practice: Solving a determining the classification
of the graphs.
Lesson 3.8 Practice A
Day 2:
Journal: review notes
Lesson 3.8 Practice B
7.RP.2a
7.RP.2c
identify direct variation
from a graph or an
equation.
7.RP.3
use a direct variation model.
2 days
3.8 Inverse Variation
7.RP.2a
I can:
Inverse variation
decide whether two
quantities show direct
variation, inverse variation, or
neither
1 day
Quiz Lessons 3.6-3.8
Standards
associated
with these
lessons
All standards associated with
these lessons
All vocabulary
within these
lessons
Page 4 of 5
Quiz
Review packet
Time
Lesson and Topic
Standard
Learning Target
Vocabulary
Resources
1 day
Review for Unit Test
All
All
All
1 day
Test over Unit
All
All
All
Check Review Packet
Jeopardy
CIITS test and Extended response
Page 5 of 5