1.
Math and Mega Pixels
2nd Grade
Nikki Davis
March 2, 2010
2.
This plant is in the
5th stage of it’s
lifecycle. This is
when the flower
blooms. For your
mom’s birthday you
want to get her as
many flowers as you
can. You can pay for
44 flowers, but your
dad said he would
pay for 152 flowers.
How many flowers
will your mom have
for her birthday?
3.
If you are stuck, try this:
• Estimate what your answer should be. Will
it be more than 100?
• Use the benchmark of 50 to solve the
problem.
• Use the base ten blocks to figure it out.
4.
Baby Grace is in the
toddler stage of the
human life cycle. I am
in the young adult
stage of the human life
cycle. I am 65 inches
tall and Baby Grace is
26 inches tall. How
much taller am I then
she is?
5.
If you are stuck, think about this:
• Do you need to regroup in order to solve
the problem?
• Estimate the answer. What should the
answer be close to?
• Will a ruler help?
6.
Catherine is in the
Toddler Stage of
the human life
cycle. If there are
24 owl eye balls on
her pajamas, how
many owls are
there?
7.
If you are stuck, try this:
• How many eyeballs are on each owl?
• Draw a picture to solve the problem.
8.
In the 5th stage
of the life cycle
of a flowering
plant, the
flowers have
bloomed. In the
garden, 12
flowers have
bloomed. There
are 8 anthers in
each flower.
How many
anthers are
there in all?
9.
If you are stuck, try this:
• Draw a picture to figure out the answer.
• Use our lima beans as manipulative to
represent each anther.
11.
Georgia Performance Standards
M2N2. Students will build fluency with multi-digit addition and subtraction.
a. Correctly add and subtract two whole numbers up to three digits each with
regrouping.
b. Understand and use the inverse relation between addition and subtraction to solve
problems and check solutions.
c. Use mental math strategies such as benchmark numbers to solve problems.
d. Use basic properties of addition (commutative, associative, and identity) to simplify
problems (e.g. 98 + 17 by taking two from 17 and adding it to the 98 to make 100
and replacing the original problem by the sum 100 + 15).
e. Estimate to determine if solutions are reasonable for addition and subtraction.
M2N3. Students will understand multiplication, multiply numbers, and verify
results.
a. Understand multiplication as repeated addition.
c. Use the multiplication table (grid) to determine a product of two numbers.
d. Use repeated subtraction, equal sharing, and forming equal groups to divide large
collections of objects and determine factors for multiplication.
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