JICA LESSON STUDY
Lesson studies provide teachers with opportunities to learn together. Now let’s take a look at now they are implemented at the school. Takao Seiyama is a second grade teacher at the Elementary School University of scuba. Mr.Seiyama thinks that the students won’t be happy learning unless he himself is happy about teaching what do his students thinks about their teacher.
Students say.
Student 1: I like him in lots of ways.
Student2: He’s very nice.
Student3: He’s cool.
Student4: well, his math classes are interesting and fun.
All students: We love Mr.Seiyama
Lesson planning
At the school is over for the school day it’s now dusk and Mr.Seiyama is working alone writing something on the board. He is making plans for the lesson. He will present for a lesson study to be held in just one week the lesson for this unit focuses on subtracting a two-digit number from a three-digit number it seems to be different from ordinary questions. Where you solve the problem and fill in the answer. He is going to use a different way of teaching subtraction using a fill-in-the-blank subtraction problem. Where only the different is known the students will be asked to come up with the missing numbers which police and officers you know start.
Mr.Seiyama say, with this kind of problem normally one or two digit are hidden. I’m going to hide both numbers in the subtraction problem. The answer is already there. The students have to come up with a subtraction problem for that answer. I think this will be enough to attract their interest in the problem.
Getting the student motivated with a fill-in-the-blank subtraction problem wasn’t the only purpose of the lesson. He wanted the student to find certain rules hidden in the answer to the problems. The first rule is
That the menu end and the subtrahend increased by one the second rule is that there is the same number of equation as the value of the difference for example there are three ways of subtrarting when the difference is three and there are five ways of subtracting when the difference is five if the students know these rules. They can find all the possible combinations of menu ends and subtrahend more quickly. Mr.Hozomizu head mathematics teacher come to see mr.seiyama .Mr.seiyama asks him for some advice on how to process with the lesson was I call Mr.Hozomizu You see the difference and the number of equations are the sames think the students will notice something goingon here.
Mr.Klozomizu : Yes,Frome there you just move on depeuding on howthe students react.You don’t necessarily push them, just go wherever theytake you. They at some point in a word on the right track.
Mr.seiyama : like
Mr.Klozomizu “Do you notice anything about this?” or something like that. The best thing about Mr.seiyama is that he believes the kids won’thave fun unless he’s having fun. That’s why be gets so involved but I’m afraid that sometimes he don’t see the forest for the trees. The important thing is to ask for other teachers advice before making a lesson plan. In that sense,He talk to many other teachers before developing a plan. Like this .That’s a good thing abouthim. Mr. seiyama I think the students will eveutually discover certain rules as we try with 1,2 and 3 as the answer to the equation.
Student : Every time the “ones” in the top numbers goes up. The number you subtract with on the bottom goes up. Like 95,96,97 and 98.
Mr.Seiyane : By how much does it go up?
I don’t know I need to know what it look like the children have realized the both the minuend and the subtends increase by 12 we now.
Mr.Seiyane : when I told to start thinking to go said something right way. What did he say ?
Takashi, what did he say?
Takashi : He said that when the difference is 5 you can make five equatious
Mr.Seiyama : Yes? What?
Takeshi : So if the difference is ………
Mr.Seiyama : If the difference is …… 1. How many equations do you think you can make?
Whatever because you’re eating alone for the moment then came Mr.Seiyama was waiting for that.
Mr.Seiyama : What about this? How many do you think there are? Let see it that’s right?
The children discovered the other room. There are the same number of possible equation combinations as the value of the difference.
I’m really looking forward to that moment when they discover the rules. I will highlight certain things they may say about the rules so the entire class can see where we are going . Finally I’ll ask them. “How many equations can you make when the answer is a ? Getting to the point where I can ask this question is crucial. You collect all you ago commercial that alters Mr. Seiyama once his students to discover the rule hidden in the answer will he be able to lead his students to the point his discovery. Yeah we got a pedal as well along with squeeze on their All students: lesson presentation/ observation Mr. Seiyama : this blank square are part of a fill-in-the-blank subtraction problem. I'm going to show you what i