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Model of Project Given to Students
Comparing
• Create number line first. There are sample number lines in classroom. If
you would like to use one of these please ask for one.
-2
-3/5
-0.2
½ 0.6
• If you count on this number line there are 10 marks from 0 to 1. Because
of this each mark represents 0.1.
• Once number line is created, comparison of numbers is very easy. The
further to the right, the greater the number.
• Two negative numbers: Use any of your two negative numbers to compare
-2 __<__ -0.2
*ALL of this work would go in the Comparing Section of your poster or
electronic presentation.
Absolute Value
• Remember that the absolute value is the distance from zero, and distance can
only be measured in positive values.
Use your 5 rational numbers and show the absolute values of each. Model
yours from the examples below.
−2 = 2
−0.2 = 0.2
1
1
=
2
2
The distance from -2 to zero is 2 units.
Number Problems
• Read the directions carefully. They describe exactly how the
problems should be set up. Remember “like signs” means problems
where both numbers are positive or both are negative and “different
signs” or “unlike signs” means that one number is positive and one
number negative.
• You may use any of your 5 numbers as long as you match the
directions. You may use each more than once.
• I would suggest making blanks and filling them in.
____ + _____ =
____ + _____ =
Review for Operations with Decimals:
Below is a link of multiple videos that walk you through adding, subtracting,
multiplying, and dividing decimals. Watch these if you need a reminder!
https://www.khanacademy.org/math/arithmetic/decimals
Review for Operations with Fractions:
Below is the link to the online modules we used to review operations
with fractions.
http://mathtechyblog.blogspot.com/2014/07/fraction-review-withthinglink.html
Real-life Problems
• Think of real world contexts where positive and negative rational
numbers are used and base your examples from these.
• Temperature, money, elevation, sports, etc. are just a few that we
have looked at in class
Rules and Misconceptions
• Misconceptions mean common mistakes that are made with
operations with rational numbers. Think of mistakes that you have
made, have seen friends and classmates make, or that you remember
me pointing on during class.