Student’s alternative conceptionPresentation Transcript
ALTERNATIVE CONCEPTION BIOLOGY’S CONCEPT: CELL DIVISION V(^_^)V
MUHAMMAD HAFIZ BIN ABD KADIR
NURUL FARIHIN BINTI MOHD RADZI
EZZA LIYANA BINTI BADRUL HISHAM
MUNIRAH BINTI APANDI
The cell cycle, or cell-division cycle, is the series of events that takes place in a cell leading to its division and duplication
Cell cycle involve the interphase and the mitotic phase or also known as cell division.
Interphase is the phase in the cell cycle in which the cell spends the majority of its time and performs majority of its proposes including preparation for the cell division .
Cell division is the process of which parent cell divides to become 2 or more daughter cells.
There are two types of cell division, Mitosis and Meiosis .
Mitosis - divides the replicated DNA equally thus producing two identical sets of exact genetic copy of the parental nucleus.
Meiosis - reduction of the chromosomal number to half of the parental chromosomal numb er.
2 techniques were used to detect the misconception of students in the topic of cell division:
1) Student’s Drawings
1) STUDENT’S DRAWINGS
Teacher showed a model of meiosis and mitosis to students. Then, the students were asked to draw the mitosis and meiosis without looking at the model.
The students were asked to respond to
questions like :
What would happen to organelles, such as mitochondria and chloroplast during cell division?
Where we can found nucleus in a cell?
Which phase does the replication of DNA occur?
What do you understand by the word interphase?
DNA replication takes place in which process? Meiosis or Mitosis?
How do chromosomes formed?
In mitosis, which phase does the homologous chromosome separate?
What would happen to the number of chromosomes in the prophase and anaphase of mitosis?
The example of meiosis process in human?
Do the chromosomes always have two chromatids?
Which stage the centroles replicated?
How diploid cells are formed?
During the cell division, what happen to each centriole?
Spindle fibres are formed from?
Do the centrosomes and centrioles the same thing?
Are sister chromatids are homologous chromosome?
STUDENT’S ALTERNATIVE CONCEPTION
1) STUDENT’S DRAWING A MODEL OF MEIOSIS AND MITOSIS ARE SHOWN TO STUDENTS. THEN, THE STUDENTS WERE ASKED TO DRAW THE MITOSIS AND MEIOSIS WITHOUT LOOKING AT THE MODEL. WHAT HAPPEN???
2)INDIVIDUAL INTERVIEWS : WERE CONDUCTED ABOUT THE DETAILED SUBJECTS WITH RANDOMLY CHOSEN STUDENTS WHO DEMONSTRATED MISCONCEPTIONS. THE PURPOSE WAS TO CHECK THE VALIDITY OF THE INTERPRETATION OF THE DRAWINGS.
1) WHERE ARE THE LOCATION OF CENTRIOLES?
A drawing of misconception of “centrioles are found in the nucleus of a cell
2 )“WHEN DOES DNA REPLICATION OCCUR IN A CELL?,”
A drawing of misconception of “DNA replication occurs between prophase and metaphase during cell division
3)“WHAT HAPPENS TO THE CELL ORGANELLES DURING THE CELL DIVISION PROCESS?,”
A drawing of misconception of “interphase is the resting phase of the mitosis”.
4)“HOW DO THE CHROMOSOMES ACT DURING MITOSIS AND MEIOSIS?.”
A drawing of misconception of “the chromosome number is doubled in the prophase of mitosis and halved in the anaphase of mitosis”.
5)HOW DIPLOID CELLS ARE FORMED?
A drawing of misconception of “diploid cells are formed as a result of meiosis”.