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Fractions
Objectives
- Students will learn to use concrete materials to
model numbers and number relationships for whole numbers and fractions.
- Students
will be able to recognize the difference between whole, half, and
quarter divisions of different items
- Students should recognize
that:
- all of these fractions are less than 1
- the larger the number
in the bottom of the fraction (denominator) are smaller fractions
- there are different combinations that can be used to achieve
the same value (ie. 2 times1/4 = 1/2 )
Kit Contents
- Books (in kit)
- Adler, David A. Fraction Fun
- Equipment (in kit)
- 1 Fraction Tower Activity Set
- 51 Interlocking Fraction Cubes
- 12 Double-sided Activity Cards
- Fraction Tower Base
- Activity Guide
- 30 Fractions Match Up Puzzle Cards
- 1 Building Fractions Magnetic Board
- 102 Magnetic fraction pieces
- 12” x 12” Magnetic
Board
- Activity Guide
- 5 Color Wheels
- 1 Auntie Pasta’s Fraction Game
- Game Board
- 16 Fraction Pizzas
- 4 Delivery Box Pieces
- Spinner
Lesson
- Introduction
- What is a WHOLE number? The number used to count objects.
- What is a FRACTION? It is a part of something.
- When do we use
WHOLE NUMBERS? (Counting number of people, objects in a room.)
- When
do we use FRACTIONS? (Dividing an object such as an orange,
or dividing a group of things such as 6 cookies between
3 children.)
- Read, the book, Adler, David A. FRACTION FUN
- Program
- Using the MATCH UP PUZZLE (several options)
- Students
can use the fraction puzzles to match up the filled in portions
of a circle with the numerical fraction representation.
- Two
or more people could play a variety of “Go Fish” in
which each player receives a hand of five pieces. The pieces
would be a mix of pictured and numeric fractions and the players
would ask each other to find pairs. For example, person A asks
person B for a fraction. If person B doesn’t have the match,
then person A must draw an additional “card”. If
person B does have the match, the fraction is given and the two
puzzle pieces are put together and person A keeps the pair. If
the fraction given does not match, whichever player made the
mistake loses a turn. Once all the pieces are paired, the player
with the most pairs wins the game.
- Two people can use the puzzles
as flashcards. The tester could either keep the pieces together
and hold his/her hand over one
set of fractions and the student says what the fraction is, then
the tester can remove his/her hand in order to check. This method
would work best for two friends both learning to recognize fractions.
If the tester is more comfortable with fractions, the pieces
can be separated and if the student makes a mistake, the tester
can correct that. In this way, both numerical and pictured fractions
can be tested mixed together. As a test, the cards can be used
similar to the flash cards in which the tester shows the card
and then student writes down the corresponding pictured or numerical
fraction.
- Using FRACTION MAGNETS (several options)
- In the Fraction
Board Pamphlet, there is a list of vocabulary words with
explanations of the more complicated words. These
words should be used with your student in order to introduce
him/her to the words. They should be used in conjunction
with the more common words (ex. What number is on the bottom,
in the
denominator?)
- Challenge your student to construct as many different
combinations of fraction pieces in order to come up with
one whole (may be
easiest shown with the circle magnets. If your student is
more advanced, work with him/her to prove numerically that
it adds
up to one whole. For example if you have four 1/12 pieces,
two 1/6 pieces, and one 1/3 piece, it could be written as
4/12, 2/6,
1/3 which then changes to 4/12, 4/12, 4/12 which when added
together becomes 12/12 or 1.
- A game that could be played with multiple
people could be to put all the pieces in a bucket and shake
them up. Have each
player pick out an equal number of pieces. Challenge the
players to form as many whole circles as possible given the
pieces he/she
has.
- Once your student is comfortable with the
fraction wedges, run similar challenges with the bar pieces.
Those may be
more difficult for the student to visualize what the “whole” is
because they form a straight line. The ability to understand
the fractions themselves and not just forming circles will
be much more apparent as a result.
- AUNTIE PASTA’S FRACTION
GAME(First you might want to explain the play on words for the
Italian Antipasto which is
an appetizer, thus it has added humor rather than calling it
Auntie’s Pizza game although pizza is what is featured
on the board.)
- Follow the instructions for 2-4 players as included
in the game box.
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Families Count, a collaborative project of the
Mohawk Valley Library System, Amsterdam Free Library, The Community Library
in Cobleskill, Johnstown Public
Library and Schenectady County Public Library, is supported by Federal Library
Services and Technology Act funds, awarded to The
New York State Library by the Federal
Institute of Museum and Library Services.
Mohawk Valley Library System
858 Duanesburg Road | Schenectady | New York 12306-1095
Phone: 518-355-2010 | Fax: 518-355-0674 Families Count:
http://www.mvls.info/familiescount/
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