Scratch as an Environment for Learning the Coordinate System by Elementary School Students
Abstract
:1. Introduction and Literature Review
1.1. Constructing Mathematical Knowledge
1.2. Students’ Learning of the Coordinate System
1.3. Scratch in Mathematics Learning
1.4. Research Rationale and Goals
1.5. Research Question
2. Materials and Methods
- E1/2/3/4: the point properties in the first/second/third/fourth quadrants, respectively
- E5: negative numbers
- E5.1: negative numbers as numbers that have the “-” sign
- E5.2: negative numbers are numbers that are less than zero
- E6: the zero is neither a negative number nor a positive number
- E7: the place of a point with a zero X-value
- E8: the X and Y axes
- E8.1: the Y-axis point properties
- E8.2: the X-axis point properties
- E8.3: the origin of the Cartesian coordinates
3. Results
3.1. The Emergence of C6: Zero as Neither a Positive Number nor a Negative Number
- Teacher: What about the zero? Is it positive? Is it negative?
- Ragad: Middle.
- Taleen: Equivalent.
- Qutaiba: Half and half.
- Dema: It is positive and negative at the same time.
- Omar: No, it is positive.
- Teacher: What is your opinion, Taleen?
- Taleen: The positive and negative are equal in it.
- Teacher: So, is it positive or negative? Remember, what are positive numbers? What are negative numbers?
- Wadea: I think it is neutral.
- Omar: Positive because it does not have “-” sign.
- Qutaiba: The zero does not have a value.
- Wadea: It is positive and negative at the same time.
- Dema: I do not know.
- Teacher: What is your opinion, Abdallah (Abdallah did not respond)?
- Omar: Positive.
- Teacher: Why?
- Omar: I cannot say that the zero is negative because negative numbers have a “-” sign.
- Teacher: Okay. But what is the definition of positive numbers?
- Omar: Positive numbers are the zero and above.
- Teacher: Remember what we said before that positive numbers are numbers bigger than zero.
- Qutaiba: I know!
- Mai: It is not negative and not positive.
- Wadea: It is not negative and not positive. Negative numbers are under the zero. So, zero is not negative. Positive numbers are above the zero. So, zero is not positive.
- Taleen: Teacher, this what I meant by “Equivalent”.
3.2. The Emergence of C7: ‘The Place of a Point with Zero X Value’ Construct
- Teacher: Since we have discussed the properties of the zero number and determined the properties of the points that laid on the first quadrant, let us answer the following question: “Where do you think the (0, 100) point lie?”. Please describe what distinguishes the points that lie in the first quadrant.
- Students: The X values are positive and the Y values are positive.
- Teacher: What did we conclude about the zero?
- Wadea: The zero is not positive. It divides the positive and negative numbers.
- Teacher: Okay. If we added another sprite that lies on the first quadrant of the Scratch stage, could the (0, 100) point represent the place of the sprite in the Scratch stage?
- Mai: No.
- Teacher: Why?
- Student: Because of the zero-value of X.
- Mai: The zero is not positive like the values in the first quadrant.
- Qutaiba: I agree.
- Teacher: Okay. Where does this sprite lie?
- Taleen: In the middle, between the butterflies and ladybugs. Maybe here (pointing at the positive side of the X-axis) or here (pointing at the negative side of the X-axis).
- Wadea: It does not exist, or there is no place for it.
- Ragad: Teacher (she went to the board), here (pointing at the Y-axis).
- Taleen: At the bottom (pointing at the Y-axis).
- Mai: At the top of the green line (pointing at the Y-axis).
- Wadea: The x-value is zero, so how could the sprite exist?
- Qutaiba: It could not.
- Taleen: Yeah, it could not.
- Teacher: Okay. We will return to answer this question after discussing the properties of the points that lie in the other quadrants (the teacher discussed and determined with the students the properties of the points that laid in the other quadrants).
3.3. Constructing C7: ‘The Place of a Point with Zero X Value’
- Teacher: Okay. We return to the question: “where do you think the (0, 100) point lie?”
- Qutaiba: In no place. All the points have positive or negative numbers.
- Mai: Not on the Scratch stage.
- Dema: Not in the quadrants.
- Ragad: At the lines.
- Teacher: Which one of them?
- Taleen: I suspect that it lies on the lines (meaning the x and y axes), but I do not know which one of them.
- Omar: I think that it lies on the yellow point (meaning (0, 0)).
- Teacher: The X-value in the point (0, 100) is zero, which is not positive or negative. The Y-value is 100, which is positive (writing on the board (+, +), (−, +), (−, −), (+, −), and (0, +)). What do you think?
- Taleen: On the ladybugs and on the butterflies (meaning the Y and X axes).
- Teacher: Where is it on the ladybugs? Where is it on the butterflies?
- Taleen: Let me see, on the butterflies (the Y-axis).
- Teacher: Where is it on the butterflies?
- Taleen: On the upper part (meaning the positive side of the Y-axis).
- Wadea: On the butterflies (meaning the positive side of the Y-axis). All the butterflies are above the ball (meaning (0, 0)).
3.4. Students’ Justifications of C7: ‘The Place of a Point with Zero x-Value‘
- Teacher (turns to the students): So, why does (0, 100) lie on the upper side of the green line (the positive side of the Y-axis)?
- Mai: It is between the first and second quadrants. I say that the point (0, 100) lies on the green line (she came to the board and pointed at the upper side of the green line). This is because the zero is between the positive and the negative.
- Teacher: Mai, can you please say again what you said (the teacher turns to the rest of the students)? If you have another idea, please tell me.
- Mai: The points in the first quadrant are (+, +) (pointing at the signs that the teacher wrote on the white board). In the second quadrant, they are (−, +). We said that the zero is between the negative and the positive, and so it is on the green line (she points at its upper side).
- 35.
- Teacher: Can you tell me what is common for all the points that lie on the green line?
- 36.
- Mai: Dividers.
- 37.
- Taleen: They divide the positive and the negative.
- 38.
- Teacher: Which number is this?
- 39.
- Wadea: The zero.
- 40.
- Teacher: So, what is common to all points on the green line?
- 41.
- Students: Zero.
- 42.
- Teacher: Let us work with Scratch and verify our conclusion (the students begin working in Scratch).
- 50.
- Teacher: What could you conclude?
- 51.
- Qutaiba: It is because the value of X is zero. The values of X in the first quadrant are positive, and in the second quadrant, they are negative. So, the blue line divides the positive and the negative. This means that the points on this line have an X-value of zero.
- 52.
- Teacher What do you suggest calling the blue line?
- 53.
- Taleen: A divider.
3.5. Drawing the Axes in the Scratch Environment
- 60.
- Raghad: How should we draw the red line (the X-axis)? I suggest that we move the ball again to the origin (0, 0).
- 61.
- Taleen: Okay. We need the “go to x:0 y:0 “ block, the “Pen down” block, and the “move step” block.
- 62.
- Raghad: Okay. We will move the ball to the origin using “go to x:0 y:0” and then to the right side using “Pen down” and “move 200 step”.
- 63.
- Taleen: It is not correct! We have to set the direction of the pen using the “Point in direction” block.
- 64.
- Raghad: Yes. Okay, now it is correct.
- 65.
- Taleen: We drew just the right side of the red line (talking to Raghad). We also have to draw the other side. Move the ball to the origin again.
- 66.
- Raghad: No. We do not have to do that. We can use just the “move 500 step” block.
- 67.
- Taleen: It does not work. Ahhh… Again, we forgot to set the direction first. Raghad, use the “Point in direction −90” block and then the move block.
4. Discussion
5. Conclusions
6. Limitations and Recommendations of the Study
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Conflicts of Interest
References
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TN | Speaker | Discussion | Knowledge Construction Analysis |
---|---|---|---|
15 | Teacher | What about the zero? Is it positive? Is it negative? | Building a new construct with “Positive numbers” and “Negative” numbers: C6, where the zero is neither a negative number nor a positive number. |
17 | Raghad | Middle | Recognizing zero as “between” the positive and negative numbers |
18 | Taleen | Equivalent | |
19 | Qutaiba | Half and half | |
20 | Dima | It is positive and negative at the same time. | The emergence of an incorrect knowledge construct: “the zero is positive and negative at the same time”. |
Omar | No, it is positive. | The emergence of an incorrect knowledge construct: “the zero is a positive number”. | |
20 | Teacher | What is your opinion, Taleen? | |
21 | Taleen | The positive and negative are equal in it. | Recognizing the zero as “equal“. |
22 | Teacher | So, is it positive or negative? Remember, what are positive numbers? What are negative numbers? | Recognizing the definitions of a “Positive number” and a “Negative number” to build with them a new knowledge construct, C6, where the zero is neither a negative number nor a positive number. |
23 | Wadea | I think it is neutral. | The emergence of C6, where the zero is “not positive nor negative number”. |
24 | Omar | Positive because it does not have a “-” sign. | The emergence of an incorrect knowledge construct: “the zero is a positive number because it does not have “-” sign”. |
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Share and Cite
Anabousy, A.; Daher, W.; Bassan-Cincinatus, R. Scratch as an Environment for Learning the Coordinate System by Elementary School Students. Educ. Sci. 2023, 13, 724. https://doi.org/10.3390/educsci13070724
Anabousy A, Daher W, Bassan-Cincinatus R. Scratch as an Environment for Learning the Coordinate System by Elementary School Students. Education Sciences. 2023; 13(7):724. https://doi.org/10.3390/educsci13070724
Chicago/Turabian StyleAnabousy, Ahlam, Wajeeh Daher, and Ronit Bassan-Cincinatus. 2023. "Scratch as an Environment for Learning the Coordinate System by Elementary School Students" Education Sciences 13, no. 7: 724. https://doi.org/10.3390/educsci13070724
APA StyleAnabousy, A., Daher, W., & Bassan-Cincinatus, R. (2023). Scratch as an Environment for Learning the Coordinate System by Elementary School Students. Education Sciences, 13(7), 724. https://doi.org/10.3390/educsci13070724