Mr. Marsigit gave a great material on last
meeting. It was about teaching-learning on school. After giving the material,
he asked us to make a reflection about the material and he asked us to add more
material from other source. So this is the reflection.
In teaching-learning process, there are ten
elements. These things are very close to each element. In this time, I will try
to write how to do these things in junior high school. The material is plane
geometry.
1.
Lesson Plan
Lesson plan is made
to facilitate teaching-learning process in class. Lesson plan makes
teaching-learning activity goes easier and effective. Teacher makes certain
about the topic, then make idea that what to discuss in class. Teacher makes
activities to do in class. Teacher finds material that needed.
If we want to
teach about plane geometry for junior high school, we have to find the text
book as the basic when we teach. We can ask the students to compare the
construction of rectangle and square, then square and rhombus, rhombus and kite,
and so on. From the comparing construction they will think the different among those
planes.
2.
Group Discussion
The nature of
learning is discussing. Students divided into small groups, given some problem,
and let they say what's on their mind. This little discussion is part of social
life of student. There are interaction among students with pro and contra. From
group discussion, students may learn about how to interact in social life.
Let students in
small groups, gives the question about the quadrilateral. For example we’re comparing
the construction of rectangle and square. How if we bisect each sides, how if
we fold the plane, and so on.
3.
Various method of teaching
Various method
of teaching is needed based on the context, students, and competence. For
example, explaining. Besides students active for reach the material, teacher still
play the role for explaining some materials. Maybe some complex material that
students cannot reach, teacher will explain.
For example on
plane geometry, we can’t ask students to find the Pythagorean Formula. So
teacher take the role to explain it.
There’s no
method that teach people perfectly, but we can reach the perfection with
combine the various method. The various methods are used based on context,
students, and competence.
4.
Various interaction
Interaction in
class can be divided as whole class teaching, small group discussion, and
individual. Whole class teaching enable teacher to explain the material
conventionally. Teacher stands in front of the class and speak whole time about
the material. Some students think that is boring. But we can put the students
on the discussion. The students can study together; find the best way to solve
the problem.
5.
Various teaching aids or media
When teaching,
we use some media to help us explain the material. Maybe traditional Medias are
like chalk and board. Media helps us to explain and present the material. Not
only teacher but also students use media to deliver the explanation or the result
of discussion.
When we explain
about plane geometry, we can use many aids, from the most traditional one or
the sophisticated one. We can show how to construct triangle by traditional way
or a modern way. By traditional way, we can use compass and ruler. By modern
way, we can use software Geogebra to show how to make triangle.
6.
Cognitive Scheme
What material
that wanted to reach in class, we can make it in cognitive scheme. The target
for students to understand, we write it on cognitive scheme. So if we want
students to understand all about geometry, so we can make a scheme that show
the target. For example, we want the students to know how to find the formula
of triangle, solve the problem about how to find the area of triangle, and
using Pythagorean Formula. That’s the basic for students.
7.
Student Worksheet
The most
traditional worksheet is known as “LKS”. Worksheet actually helps students to
understand the basic concept; in this case is mathematical basic concept.
Worksheet facilitates students to construct mathematical basic concept. Teacher
gives worksheet, gives some problems in steps, so students can work together or
individually to solve the problems. From those steps, students can find the
pattern of the mathematical basic concept.
The problem of
this element of teaching-learning is when teacher gives worksheet just as a collection
of questions in big quantity. Teacher should give worksheet that leads students
to find their own pattern and build their concept so they can understand the
material, not only remember the contents. Nowadays, worksheet is only giving
the material. It’s not really good because worksheet should make students
understand the material without give the formula too much. Worksheet should let
students find the formula by themselves.
Let the
worksheet is about plane geometry. So teacher gives worksheet that is able to
students find the formula without teacher’s hand. For example, the worksheet is
about finding rhombus’s area. But we give some clues with square construction.
8.
Student Presentation
After students
find the pattern and understand what the material is about, let students to
deliver the result of their discussion. In this time, teacher gives trust
student to present the result with their own way. Students can use aids or
medias when present the presentation. They can use schemas, maybe a software
like Microsoft PowerPoint or practice using Geogebra to show geometry and
algebra function.
After students
find the area formula of rhombus, they present the result in front of the
class. Let students use media to explain their result. For junior high school,
it’s better to start speaking in front of people.
9.
Student Conclusion
If students do
the exercise and present the result, so students must conclude the whole
experiment. So in here, student conclusion is employing student’s worksheet.
The teacher doesn’t give the formula. Students can conclude the material,
understand the basic concept, and be able to solve the problems.
After all
students from all groups present the result, students conclude together. Let
they compare the results and merge the result together. So they have the final
conclusion that’s the formula. As a teacher, we’re only giving clue for the
conclusion.
10.
Classroom Based Assessment
As a teacher, we
have to evaluate students work. But, how? Evaluate students work isn’t that
easy. We have to see students one by one. Make sure we see the progress.
Classroom based assessment means that you must see the progress of your
students. It’s better if you make narration school report card. It means that
you really see students’ progress. The best mark isn’t only for the smartest,
but also for student with big progress.
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