Transcript File - Hudson Math Facts

Math Night – Session 2
Thursday February 5, 2015
Second Grade
Terri Buscemi - Math Specialist
Mulready and Farley Elementary Schools
Agenda
• 6:00 – 6:15
– Addition and Subtraction Strategies
• 6:15 – 6:45
– Foundations of Multiplication
and Division (Module 6)
• 6:45 – 7:00
– Activities to do at home to support
concepts in Module 7
Make a hundred strategy
256 + 399 =
• Choose a number to
get to the closest
hundred
• Create a number
bond with the other
number
• Make a new equation
• Solve the simplified
equation
256 +399
^
255 1
255 + 400 = 655
Make a hundred strategy
225 + 280=
• Choose a number to
get to the closest
hundred
• Create a number
bond with the other
number
• Make a new equation
• Solve the simplified
equation
225 +280
^
215 10
215 + 290 =
^
205 10
205 + 300 = 505
Compensation Strategy
256 – 199 =
• Make a tape diagram
• Add to the subtrahend
(the number you are
subtraction) to make a
number you can subtract
easily, add the same
amount to the minuend
• Write the simplified
equation
• Solve
+1
+1
256
199
• 257 – 200 = 57
Module 6:
Foundations of
Multiplication and Division
During this module the students will:
• Form equal groups with
manipulatives and drawings
• Create arrays and relate it to
repeated addition
• Understand the meaning of even
and odd numbers
Form equal groups with manipulatives
and drawings
Mayra sorts her socks by color. She has 4 purple socks, 4
yellow socks, 4 pink socks and 4 orange socks. Draw
groups to show how Mayra sorts her socks. Then write an
addition sentence to match. How many socks does Mayra
have in all?
4
+
4
+
4
+
4
=
16
Create arrays and relate it to repeated
addition and tape diagrams
Mrs. Buscemi arranges the desks into 4 rows of 5. How many desks
are in her room?
1. Draw a picture
2. Create a number
sentence
3. Make a tape diagram
4. Write a statement
Mrs. Buscemi’s room has
20 desks.
4 + 4 + 4 + 4 + 4
4
4
4
20
4
4
Decomposing a rectangle using square tiles
Construct a rectangle with 4 rows of 5 tiles.
What repeated addition problem will tell you
how many tiles there are?
How can we decompose the rectangle to
make 2 equal parts?
Use the ruler to break your rectangle into 2
parts.
4 rows
of 5
2 rows
of 5
2 rows
of 5
5+5 = 10
5+5 = 10
Understand the meaning of even and
odd numbers
Take out 8 tiles.
Is 8 an even or odd number?
There are 4 pairs of 2
Take out 15 tiles
There are 2 groups of 2
Is 15 an even or odd number?
There are 7 pairs of 2
with one left over
Prove it!
Prove it!
There are 2 groups of 7
with one left over
Activities to do at home to support concepts in
Module 7:Problem Solving with
Length, Money and Data
1.Get to a dollar – need coins and a die
Roll the die and collect that many cents (ie roll a
3, take 3 pennies)
Continue to roll the die and collect the correct
amount of money, trading as you go along. (ie
you have 14 cents. You roll a 6 and collect 6 pennies,
you will need to trade 10 pennies for a dime)
The games ends when someone has a dollar.
2. Lose a dollar – need coins and a die
Same as above, but this time you start with a
dollar and give back what you roll.
3. Look at graphs and data tables in the newspaper and online
4. Use a ruler to measure using both inches and centimeters.
Resources
Here is a link and QR code for Mrs. Buscemi’s Math
Facts Website; games, activities, information, and
more!
http://hudsonmathfacts.weebly.com/
Here is a link and QR Code for the EngageNY (Eureka
Math) website that has videos and other information about
the program.
https://www.engageny.org/parent-family-library
More resources
Here is a link and QR Code for a page for Eureka Math
(EngageNY) parent information, videos and “Parent Tips”
pages
http://commoncore.org/parents
Some websites for practicing with money
http://www.practicalmoneyskills.com/games/peterpigs/
http://www.smartygames.com/igre/math/learnMoney.html
Scroll down to find the websites
http://www.free-training-tutorial.com/money-games.html#enough
Still more resources
Please note, this is a website from the UK, so some
of the wording might be a little different.
You can also choose other areas to explore, just
choose a topic at the top
http://www.topmarks.co.uk/maths-games/5-7-years/data-handling