Dover Sherborn Middle School Curriculum Road Maps
Course Title: Pre-Algebra Grade: 7
Unit: Ratio, Proportion and Percent
Month Presented: January, February/March Unit Length (in weeks): 8
|
Essential Question
(s):
- How do fractions,
decimals and percents relate to each other?
- What is the
difference between a rate and a ratio?
- How do I use
proportions to solve word problems?
- How do I solve
problems involving percents?
|
|
Learning Objectives:
- To explore the
meaning of ratio.
- To solve
proportions by using algebra.
- To express
rates in per unit form.
- To interpret
and use scale drawings.
- To understand
how proportions can be used to solve word problems.
- To understand the
relationship between percents, fractions, and decimals by changing them
from one form to another.
- To understand
and solve percent word problems.
- To understand
and solve problems involving simple and compound interest.
|
|
Skills:
- Express ratios
as fractions.
- Determine and
compare unit rates.
- Cross multiply
to solve proportions.
- Use the scale
ratio to find the actual length from a scale drawing.
- Change
fractions to percents.
- Change decimals
to percent.
- Change percents
to fractions.
- Change percents
to decimals.
- Find a percent
of a number.
- Find what
percent one number is of another.
- Find a number
when a percent of it is known.
- Find the
percent of increase and decrease.
- Find discounts
and sale prices.
- Find commission
and profit.
- Find simple
interest.
- Find compound
interest.
|
|
Instructional
Strategies & Activities:
- Note taking
- Games
- Group
work/cooperative learning
- Independent
exploration
- Reflection and
Self-assessment.
- Solution
sharing.
- Student led
instruction
- Independent
practice
|
|
Materials Utilized:
- Textbook
- Teacher
generated material
- Calculator
- Flash cards
- Technology
|
|
Assessment
Strategies:
- Discussion
- Daily class
performance
- Openers/warm-ups
- Tests and
quizzes
|