Open Access This is an open access article distributed under the CC BY-NC license ( ). These findings showed that the use of Lattice Method enhanced the students' multiplication test score achievement. In this video I solve an example problem using this method.The practice problem pres. It was created in the 9th century by Al-Khwarizmi and. Independent samples t-test results showed that there was a significant difference in mean mathematical achievement between the experimental group (M = 78.52, S.D. The lattice method - or box method - is one way to multiply polynomials. The lattice method is also called Shabakh and is a method of multiplying two numbers using a lattice. Data were analyzed using independent-sample t-test. Students' multiplication test score achievement was measured using post-test at the end of the intervention. The experimental group students were taught using Lattice Method while the control group students were taught using the conventional method. Lattice multiplication is a method of multiplication that uses a grid to help organize the multiplication and addition needed in multi-digit multiplication. The samples were assigned into two groups: Class VI-B containing 27 students, representing the experimental group and Class VI-A containing 28 students, representing the control group. This study involved the whole 6th grade students of Gracia Sustain Elementary School in the first semester of the school year 2017/2018. Draw the diagonals of the small squares as shown below: Multiply 3 by 4 to get 12 and put 12 in intersection of the first row and the first column as show. The research employs a quasi-experimental with non-equivalent pre-test and post-test control group design. It breaks down large and complex problems using the distributive law of algebra. This study aimed to identify the effectiveness of Lattice Method on students' multiplication test score achievement. The grid method simplifies the multiplication of two number. Some students face difficulties in calculating multi-digit multiplication operation, moreover students only familiar with the certain method to solve multiplication operation.
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