Bar modeling[edit]
Bar modeling is a pictorial method used to solve word problems in arithmetic.[18][22] These bar models can come in multiple forms such as a whole-part or a comparison model.
With the whole-part model, students would draw a rectangular bar to represent a "whole" larger quantity, which can be subdivided into two or more "parts." A student could be exposed to a word problem involving addition such as:
If John has 70 apples and Jane has 30 apples, how many apples do they both have?
The solution to this problem could be solved by drawing one bar and dividing it into two parts, with the longer part as 70 and the shorter part as 30. By visualizing these two parts, students would simply solve the above word problem by adding both parts together to build a whole bar of 100. Conversely, a student could use whole-part model to solve a subtraction problem such as 100 - 70, by having the longer part be 70 and the whole bar be 100. They would then solve the problem by inferring the shorter part to be 30.
Bar modeling[edit]
Bar modeling is a pictorial method used to solve word problems in arithmetic.[18][22] These bar models can come in multiple forms such as a whole-part or a comparison model.
With the whole-part model, students would draw a rectangular bar to represent a "whole" larger quantity, which can be subdivided into two or more "parts." A student could be exposed to a word problem involving addition such as:
If John has 70 apples and Jane has 30 apples, how many apples do they both have?
The solution to this problem could be solved by drawing one bar and dividing it into two parts, with the longer part as 70 and the shorter part as 30. By visualizing these two parts, students would simply solve the above word problem by adding both parts together to build a whole bar of 100. Conversely, a student could use whole-part model to solve a subtraction problem such as 100 - 70, by having the longer part be 70 and the whole bar be 100. They would then solve the problem by inferring the shorter part to be 30.
การแปล กรุณารอสักครู่..

Bar modeling[edit]
Bar modeling is a pictorial method used to solve word problems in arithmetic.[18][22] These bar models can come in multiple forms such as a whole-part or a comparison model.
With the whole-part model, students would draw a rectangular bar to represent a "whole" larger quantity, which can be subdivided into two or more "parts." A student could be exposed to a word problem involving addition such as:
If John has 70 apples and Jane has 30 apples, how many apples do they both have?
The solution to this problem could be solved by drawing one bar and dividing it into two parts, with the longer part as 70 and the shorter part as 30. By visualizing these two parts, students would simply solve the above word problem by adding both parts together to build a whole bar of 100. Conversely, a student could use whole-part model to solve a subtraction problem such as 100 - 70, by having the longer part be 70 and the whole bar be 100. They would then solve the problem by inferring the shorter part to be 30.
การแปล กรุณารอสักครู่..
