1. Launched SKKN Learning math and problem solving has a very important position in elementary math

community teachers introduced the initiative won experience valuable use in schools and colleges to allow teachers to exchange, learning, adapting them to suit their own particular. in this issue every applicant for a debut SKKN used in the quality of her school Duong Thi Thu. Primary School Teacher Ngoc Ha - Ba Dinh with the subject "Development of practical skills in calculus class 3 areas of mathematics." Ms. Duong Thi Thu achieved good teachers in the district are many areas taught at math student, mazzios lunch buffet hours has won many state-level SKKN authors have applied the method has changed teaching time, encourage students creative thinking methods to understand grasp math. The following people please SKKN summary released by the author:
1. Launched SKKN Learning math and problem solving has a very important position in elementary math program, so students need to learn and how the learning and problem-solving method For this unique student activities need to be performed calculation skills, mazzios lunch buffet hours problem-solving methods apply a style best fastest, or the most proficient form the habit of thinking and expand and child intelligence. 2. SKKN peak effect helping students quickly calculate accurately, create habits for students to know the type of comparison, look at the comments in the type of award and notice explained by the faster, more up. Since then, students and enthusiasts interested in math. 3. Idea for the initiative based on experience with basic knowledge students have grasped, lauching the math teacher from easy not easy to fit student performance computing launches mazzios lunch buffet hours types require abstract thinking associated with outdoor game lets help students acquire a knowledge of its flexible, thereby expanding student thinking such as form filling exercise First some simple student do all 17 + = 20 When school Members have solved all the other teachers give 17 + .......... -6 = 13 in this post we look backward from the results go up
except number 6 with 17 + 13 = 19 19 to find out which number should bode - more complex form: Fill in the blanks to review mazzios lunch buffet hours some many number of 3 contiguous cells by 20
Comment 3 numbers at the first cell adjacent to the cell number at 3 consecutive 2 are the same as many numbers 5,6,9 are repeated. Since then, some students find in many other cell type exercises fast fast charge The expression results 1-2 + 3-4 + 5-6 + 7-8 + 9 = Distance 1: students must take graft plus all the numbers together and give each other except: (1 +9) + (3 +7) - (2 +8) - (4 +6) + 5 = 10 + 10 - 10-10 + 5 = 20 - 20 + 5 = 5 by 2. learners can find the results by type (9-8) + (7-6) + (5-4) + (3-2) + 1 = 1 + 1 + 1 + 1 + 1 = 5 The expression values +12 18 x 3 x 3 = type 1: Students know how to find the results in the usual way (previous marriage, plus the following) 18 x 3 + 12 x 3 = 54 + 36 = 90 ways 2: 18 x 3 + 12 x 3 = 3 x (18 + 12) = 3 x 30 = 90 times the teaching mazzios lunch buffet hours of expression in addition to many students grasp principles calculation of the value expressions teachers also work to help students reinforce mental math skills, attention to figure out how to compare affordable knows, commented to the results Checked. more determined in practice for the expression values eg 1 expression (421-200) mazzios lunch buffet hours x 2 = Once students mazzios lunch buffet hours have found results, requires teachers see students commented mazzios lunch buffet hours spreads calculated time quotes Nothing special Quick Search by type of results in order to: Get 400-200 = 200 left tens and units remain So: 421 -200 = 221 Expression 2: 90 + 9: 9 = 90 + 9 Have you taken = 99 99: 9 = 11 Doing so right or wrong? Why? students do so is wrong for public expression and to make split front split, plus the following: lauching 2 expression: 48 x 4: 2 = & #