Chang's Math blog

Compilation of all things math --- questions obtained via students' consultation, related math sites. * Do also check out my EduTech contributions at go.gov.sg/changcl

Monday, December 25, 2023

Sec1 sec2 Pythagoras theorem



https://www.instagram.com/p/C1PnMkyRMPD/?igsh=Y3B6dzl3cGlxMmNu
Posted by ChangCL's Site at 1:57 AM
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Thursday, December 21, 2023

Counting



https://www.instagram.com/p/C1FkoWLyRrT/


Posted by ChangCL's Site at 5:26 AM
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Friday, December 1, 2023

Integration by Parts

https://www.mathsisfun.com/calculus/integration-by-parts.html#google_vignette

Sent from my iPhone
Posted by ChangCL's Site at 11:48 AM
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Thursday, November 30, 2023

Infinity Chocolate

Christoph Brückner on Instagram: "Infinity chocolate"
instagram.com





Sent from my iPhone
Posted by ChangCL's Site at 9:38 AM
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Saturday, November 25, 2023

p5 money (H: model drawing, algebra)

https://www.instagram.com/p/C0ArvNExuyz/?img_index=2


Posted by ChangCL's Site at 9:56 AM
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Sunday, November 12, 2023

Sec1 Sec2 quadratic equation




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Posted by ChangCL's Site at 11:14 AM
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Sec3 Indices and logarithm





https://www.instagram.com/p/CzfZ0A7xWyp/?igshid=MTI0aHNyYWhoYjB0aw==

Posted by ChangCL's Site at 11:07 AM
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Wednesday, October 11, 2023

Circles




https://www.instagram.com/p/CyQfgeWxg31/?igshid=MzRlODBiNWFlZA==

Posted by ChangCL's Site at 8:06 PM
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Circles

Posted by ChangCL's Site at 8:04 PM
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Tuesday, October 10, 2023

Addition . number bonds

Mathematics on Instagram: "😅😇 ✳ Tag Maths Lover ✳ •Have a awesome day 💐 ________ 🎯 Basic to advance mathematics 📚 👉 Thank you so much for hit like ❤ 👉 Drop your comment in the comment section. ________ Visit our Profile for more 👉 @helpmaths 🙏 ________ 👥 Share this with your friends in story 📌 Save it for future references 📢 Tag someone who need to see this. ________ . .. ... #math #mathslover #mathematics #mathsteacher #mathexam #maths #mathematician #mathproblems #mathstricks #mathstudents #mathnotes #studymemes #mathisbeautiful #mathcivilians #helpmaths #mathclass #trigonometry #physics #engineering #trending #geometry #ssc #railway #bank #jee #upsc #iitian #reet #neetpreparation #mathsmeme . .. ..."
instagram.com



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Posted by ChangCL's Site at 9:46 AM
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Saturday, September 23, 2023

P6 circles (fr psle bklt)



https://www.instagram.com/p/CxhpqCQR_wh/?igshid=MzRlODBiNWFlZA==
Posted by ChangCL's Site at 3:24 PM
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Friday, September 22, 2023

P6 fraction H: Area Diagram



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Posted by ChangCL's Site at 10:52 PM
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P6 volume, conditional



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Posted by ChangCL's Site at 9:56 PM
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Wednesday, September 13, 2023

P4, P5, P6 Area



https://www.instagram.com/p/CxGhmoayYDE/?igshid=MzRlODBiNWFlZA==
Posted by ChangCL's Site at 2:38 AM
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Sunday, September 10, 2023

P5, P6 fraction

Posted by ChangCL's Site at 2:10 PM
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Saturday, September 9, 2023

p6 algebra, age problem (jernelle)

Posted by ChangCL's Site at 2:48 PM
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Tuesday, September 5, 2023

Sec4N Geometry (fr JY)



https://www.instagram.com/p/CwzgbXgxcy2/?igshid=MzRlODBiNWFlZA==

Posted by ChangCL's Site at 5:18 PM
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Sunday, September 3, 2023

Sec2 Algebra (fr TKSS, via Marcus Ho)





https://www.instagram.com/p/CwuVeiLxylQ/?igshid=MzRlODBiNWFlZA==
Posted by ChangCL's Site at 5:06 PM
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P6 Rate (fr mindstretcher, via ben ng)




https://www.instagram.com/p/CwuVCoIRIf3/?igshid=MzRlODBiNWFlZA==

Posted by ChangCL's Site at 5:03 PM
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Saturday, September 2, 2023

P6 Ratio (fr WYJ)



https://www.instagram.com/p/CwsWnkTxBnb/?igshid=MzRlODBiNWFlZA==

Posted by ChangCL's Site at 10:03 PM
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Sunday, August 27, 2023

p5 p6 area of triangles



https://www.instagram.com/p/Cwa4U0Pyytu/?igshid=MzRlODBiNWFlZA==

Sent from my iPhone
Posted by ChangCL's Site at 11:05 AM
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Sunday, August 20, 2023

P5, P6 Average (fr ACS, via Bryan)



https://www.instagram.com/p/CwHhnLUxYZC/?igshid=MzRlODBiNWFlZA==
Posted by ChangCL's Site at 10:51 AM
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Thursday, August 17, 2023

P5, P6, bar graph, ratio (fr Sihan)

Posted by ChangCL's Site at 6:50 AM
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Wednesday, August 16, 2023

P3 P4 P5 P6 Multiplication and Division algorithm

Check out my National Day version of these apps

http://tinyurl.com/times-algo

http://tinyurl.com/longdiv-algo
Posted by ChangCL's Site at 7:00 AM
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Sunday, August 13, 2023

P6 percentage (Fr Jernelle)



https://www.instagram.com/p/Cv2xZxOSlTs/?igshid=MzRlODBiNWFlZA==

Posted by ChangCL's Site at 3:15 AM
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