N4.8 Demonstrate an understanding of addition and subtraction of decimal numbers limited to hundredths
(concretely, pictorially, and symbolically) by:
Name ___________________________________________
Using
compatible
numbers
(estimation)
Estimating
sums and
differences
Using mental
math
strategies
Fully meeting expectations, with
enriched understanding (EU)
I can compare and contrast an
estimate of compatible numbers
in a sum or difference of
decimals with an exact sum or
difference!
Mostly meeting grade level
expectations (MM)
I can estimate a sum or difference
of decimals using compatible
numbers with assistance. How can
I remember strategies so I can do
this on my own?
Not yet meeting grade level
expectations (NY)
Think.
What is a compatible number?
How can I use rounding off to
find compatible numbers?
What are tenths and
hundredths?
I can apply a variety of estimation I can use estimation strategies to find a
strategies to find a sum or
sum or difference of decimals
difference of decimals
consistently and independently.
I can use estimation strategies to
find a sum or difference of
decimals with assistance.
I can explain why one strategy is
the best to use to find a sum or
difference of decimals!
I can explain the strategies that I used
to find a sum or difference of decimals
consistently and independently.
I can explain the strategies that I
used to find a sum or difference of
decimals with assistance.
Think:
How do I estimate in addition
with decimals?
How do I estimate in
subtraction with decimals?
When do I estimate?
I can find a close solution to a
problem using estimation and
compare the exact solution using
decimals!
I have a strong understanding of
math and am able to confidently
do work in my head, using a
variety of strategies.
I can find a close solution to a problem
using estimation of decimals
consistently and independently.
I can find a close solution to a
problem using estimation of
decimals with assistance.
I can use math strategies that allow me
to do some work in my head. I have an
understanding of patterns and
relationships between numbers
without writing or drawing things.
With help, I can begin to
accomplish some math work in my
head. I am starting to see patterns
and relationships which will allow
me to do some of my work in my
head. I need to continue to
practice so some things become
automatic.
I can explain my reasoning with
strong understanding.
Fully meeting grade level expectations
(FM)
I can estimate a sum or difference of
decimal s using compatible numbers
consistently and independently.
I am able to predict solutions and
determine reasonableness of my
answers without having to always write
my answers down.
Think:
What strategy can I use to find
the sum of two decimals?
What strategy can I use to find
the difference of two
decimals? How can I begin to
do some of this work in my
head?
Solving
Problems
I can solve and create problems
with addition and/or subtraction
of decimals limited to the
hundredths!
I can solve problems with addition
and/or subtraction of decimals limited
to the hundredths consistently and
independently.
I can solve problems with addition
and/or subtraction of decimals
limited to the hundredths with
assistance.
I can count back change for a
purchase and prove why it is
accurate!
I can count back change for a purchase
consistently and independently.
I can count back change for a
purchase with assistance.
I can represent a sum or difference of
two decimals concretely or pictorially
consistently and independently.
I can represent a sum or
difference of two decimals
concretely or pictorially with
assistance.
I can represent a sum or
difference of two decimals
concretely or pictorially in a
variety of ways!
I can record and verify the
solutions to a sum or difference
of two decimals in a math
sentence!
I can solve and create money
problems using decimals!
Feedback:
I can record the solution to a sum or
difference of two decimals in a math
sentence consistently and
independently.
I can solve money problems using
decimals consistently and
independently.
I can record the solution to a sum
or difference of two decimals in a
math sentence with assistance.
I can solve money problems using
decimals with assistance.
Think.
What do the key words tell me
about the operation needed
to solve a word problem?
How do I show my work?
Did I answer the question?
Did I use a sentence?
How is the decimal used in
money problems?
How can I keep track of digits
when adding or subtracting
numbers with decimals?
What order do I use when
counting back change?