Difficulty Levels of Social High School Mathematics Teacher in Problem Solving for

Page 303 of 464 Exam 2011, the percentage of achievement for this competency standard is equal to 68.81. O ite u e , the tea he asked fo fi di g the a ea of M . A d a d M . Bu ha s la d if k o the A di s la d is e ta gula ith size + ete s a d M . Bu ha s la d is rectangle with length 5x-3 meters and width x meters. The difficulty level in problem- solving steps for item number 1 is presented in Table 2 below: Table 2. Percentage of Teachers Difficulty in Problem Solving Steps for Problem Number 1 More clearly, the following is a diagram of the difficulty level in solving problem number 1. Figure 3. The Difficulty Levels of Social High School Mathematics Teacher in Mathematical Problem Solving Item Number 1 Based on Figure 3 is obtained that as many as 86.14 of the 354 social high school math teacher did not interpret the results nor make conclusion. A total of 66.11 of teachers made a mistake in the calculation for carrying out the plan step. The difficulty level for devising plan is 62.40 of teachers experienced errors on the requirements that must be completed is that the length of the soil it is definitely more than zero. The difficulty level for understanding the problem is as much as 57.19 of an error in understanding the problem. Page 304 of 464

3.2. Difficulty Levels of Social High School Mathematics Teacher in Problem Solving for

Number 2 Items number 2 SKL according to competency standard calculating the odds of an event. Based on absorption of mathematics in National Exam 2011, the percentage of achievement for this competency is equal to 74.97. On item number 2, teachers are asked to calculate the probability of an event of primes or even number if a six-sided dice thrown one time. The difficulty level category of teachers in math problem-solving steps for item number 2 is presented in Table 3 below: Table 3. Percentage of Teachers Difficulty in Problem Solving Steps for Problem Number 2 More clearly, the following is a diagram of the level of difficulty level in solving problem number 2. Figure 4. The Difficulty Levels of Social High School Mathematics Teacher in Mathematical Problem Solving Item Number 2 From the diagram above, the biggest difficulty level of problem solving is the stage to interpret the results of which 90.51 of teachers do not interpret the meaning nor make conclusion. The next difficulty level is step of carrying out the plan. A total of 51.96 of teachers made a mistake in the third step. Errors occur predominantly in the calculation error. Then, the difficulty level for devising plan as many as 38.47 of teachers, and the least difficulty level are at the stage of understanding the problem is as much as 30.25 of the 354 teachers of mathematics. Page 305 of 464

3.3. Difficulty Levels of Social High School Mathematics Teacher in Problem Solving for