TH5776A3 - Mathematics learning materials A series of addition and subtraction of fractions when the denominator is not equal. - Google Patents

Abstract

DC60 (28/10/52) Mathematics learning materials A set of addition and subtraction of fractions when the denominator is not equal. Is a medium used by teachers In classroom teaching Which looks like a rectangular wooden board There are 3 rectangular wooden frames with the first and the second pieces. There are screen lines divided into rectangular boxes, each of which has the same width of each channel. And the length of each square is the same length to put a player that is a rectangular wooden block in each piece of 10 pieces by a player who is a square wooden board. Colored canvases on both sides And the player that is a rectangular wooden plank can be removed from the slots in each row Reversible And all players on one side do the same color And the other side of every body color is the same white all The rows of all players are the same size. The third part is divided into a rectangular screen, each of which has the same width. And the length of each square is the same length to fit a rectangular wooden player that is twice the size of a square wooden player. The first and second pieces of fabric, 5 pieces each by the player who are rectangular planks of the third. Both sides are colored and the rectangular wooden player can be removed from the slots in each row and turned over and all players on one side are colored the same. And the other side of every row is colored the same white color every row All players are the same size. Explain the relationship of addition and subtraction of fractions. When the denominator is not equal, the number of colors, the size of the player are used. And the placement of the player to express the relationship, which this invention is suitable for use as a material for teaching mathematics in the classroom. Learn about adding and subtracting fractions when the denominator is not equal. And facilitate teachers in Choose the correct and appropriate mathematical materials used in classroom teaching and building knowledge. Understand students' building on knowledge that is proof of theory. From concrete to abstract Is a medium that has Quality is correct according to academic mathematics principles. Materials that are strong, durable, reduce costs and reduce cycle time. Media must be fabricated many times and convenient for storage. Foster creativity and positive attitude in It's learning about mathematics for young students. Mathematics learning materials A set of addition and subtraction of fractions when the denominator is not equal. Is a medium used by teachers In classroom teaching Which looks like a rectangular wooden board There are 3 rectangular wooden frames with the first and the second pieces. There are screen lines divided into rectangular boxes, each of which has the same width of each channel. And the length of each square is the same length to put a player that is a rectangular wooden block in each piece of 10 pieces by a player who is a square wooden board. Colored canvases on both sides And the player that is a rectangular wooden plank can be removed from the slots in each row Reversible And all players on one side do the same color And the other side of every body is made the same white in every The rows of all players are the same size. The third part is divided into a rectangular screen, each of which has the same width. And the length of each square is the same length to fit a rectangular wooden player that is twice the size of a square wooden player. The first and second pieces of fabric, 5 pieces each by the player who are rectangular planks of the third. Both sides are colored and the rectangular wooden player can be removed from the slots in each row and turned over and all players on one side are colored the same. And the other side of every row is colored the same white color every row All players are the same size. Explain the relationship of addition and subtraction of fractions. When the denominator is not equal, the number of colors, the size of the player are used. And the placement of the player to express the relationship, which this invention is suitable for use as a material for teaching mathematics in the classroom. Learn about addition and subtraction of fractions when cutting unequal parts. And facilitate teachers in Choose the correct and appropriate mathematical materials used in classroom teaching and building knowledge. Understand students' building on knowledge that is proof of theory. From concrete to abstract Is a medium that has Quality is correct according to academic mathematics principles. Materials that are strong, durable, reduce costs and reduce cycle time. Media must be fabricated many times and convenient for storage. Foster creativity and positive attitude in It's learning about mathematics for young students.

Claims (1)

1. Mathematics learning materials A set of addition and subtraction of fractions when the denominator is unequal, in the form of a rectangular wooden board (7), with three (1) (2) rectangular wooden frames. And the second The line screen (6) is divided into rectangular channels. Each channel has a size of The width of each channel is the same width. And the length of each channel is the same length To put a player in a wooden shape Rectangle (5) for each block, 10 pieces each, with rectangle players (5) painted on both sides, and rectangular players (5) can be removed from slots in each row. It is reversible and all players on one side do the same color. And the other side of every body is made of the same white color in every row size All players are the same size. The third part is divided into a rectangular screen. Each channel has the same width, each channel is the same width. And the length of each square is the same length to fit a rectangular player (3) that is twice the size of a rectangular player (5) in the first and second pieces. The number of rectangular players (3) of the third is painted on both sides, and the rectangular player (3) can be removed from the slots in each row. Then turn it over And all players on one side do the same color And the other side of each body is colored as four white as well Every row is the same size for all players. In describing the relationship of addition and subtraction of Fractions When the denominator is not equal, the number of colors is used, the size of the player. And the placement of the player in the show to describe the relationship