Task Description: | Description
Activity
If you have a relative who is in Years 5, 6, 7, or 8 at school, or you know a student who is in one of these years, do this activity with them. Make sure a parent or guardian is present during the activity. If you do not know a student of the relevant age, do this activity with a friend, but choose a friend who is not very confident in mathematics. This activity needs small tiles or the blocks that are used for children’s play. If you do not have access to these, you will need to make 20 squares of either cardboard or stiff paper, making sure the tiles are square and that they are all of the same size. As your student works through the activity you should sketch or take photographs of their rectangles. You should also make notes of your questions and prompts and your student’s comments or responses and include them in your report.
You should attempt to progress to Step 4 with your student (unless they are becoming distressed by the activity. If they are comfortable to work to Step 4 you should then prompt them further with Step 5. Only move on to Step 6 if your student has been comfortable with Step 5. If your student is comfortable with Step 6 you can take them to the additional Step 7.
The Activity: Step 1: Ask your student to make as many different rectangles as they can with 6 tiles. Record the rectangle(s) they find and include them in your report (see below). Step 2. Ask your student to repeat this activity with 7 tiles. Record the rectangle(s) they find. What do they notice? Ask them why they think this.
Step 3. Ask them to repeat this activity with 8, 11, 12 and 15 tiles (in that order). For each number of tiles, ask them to predict the number of rectangles they might make and then record the rectangles that they make. What do they notice? If they have indicated that some of the numbers can only have one rectangle, you may tell them that these numbers are known as prime numbers if they have not met this term before. Step 4: Ask them to find the factors for each of the numbers they have used before (6, 7, 8, 11, and 15). You might need to explain what you mean by factors if they have not met them before. Record their response and include it in your report. Step 5: Ask them to repeat the activity with 9 and 16 tiles. Ask them to predict first and then record the rectangles that they make. What do they notice? You may tell them that these numbers are square numbers if they have not met this term before.
Step 6: Ask them to factorise the number 20 (they may use the tiles if they need to). If they do not go down to the level of prime factors, prompt them to do so. Include their response in your report. Only move to Step 7 if your student is very comfortable with the previous 6 steps and is eager to continue. Step 7: As them to give the prime factors for the numbers 9 and 16 without using the tiles and introduce the use of exponents if they have not met these before. How might they then record prime factorization of 20 using exponents? Which other numbers might you include for them to further use exponents?
Report Write a report that includes the following: 1. A description of this teaching experience including a summary of the student’s responses as requested above.
2. What do you think the student now understands and has knowledge of in relation to prime numbers and factorisation? Justify why and substantiate using your student’s responses, key texts or other literature. 3. Determine which AC v.9 achievement standard (Year 5, 6, 7, or 8) you think your student is now working within and explain why. You may refer to the content descriptions, numeracy general capabilities and elaborations to support your determination. 4. Explain how the key mathematical ideas from Steps 1 to 6 build knowledge that can then support Step 7 (your Horizon knowledge). Refer to key texts or other literature to support your explanation.
5. Describe a further activity that you might use to consolidate or extend your student’s knowledge and understanding. Explain why the activity will either consolidate or extend their knowledge. You may use existing teaching resources or ChatGPT for this part of the report but should reference their use.
Completion of this Assessment Task relates to Australian Professional Standards for Teachers (APST) 2.1, 2.3, 2.4, 3.4 & 5.1 |