Відео

Hi! Yes I am doing well. I’m on summer break taking some time off before we hit the ground running in the fall! ❤️

Hi- the perimeter is 2 widths plus 2 lengths. So if you have perimeter and length, first subtract 2 lengths from perimeter. P - L - L. Then the result is 2 widths. So divide the result by 2 and that will be the width. Then area is length times width. Hope that helps!

Thank you 🤗

I’m so glad you like it!

Hi! 1233 is not actually a prime. It is divisible by 3. ☺️

lol good question! I read a lot and have found that I sometimes mispronounce words because I have never heard any one say them! In this instance I am fairly confident that I am using standard American pronunciation. 😁

Hi! Yes it is true that there are more details that can be included in the video. I teach math full time and sometimes it is hard to find a balance between providing enough information to solve the problem and including details like you mentioned in this comment. In general, I think the extra tricks you mention are critical for students prepping for a timed standardized test (the GMAT is notorious for being long and students really need time saving tricks) but for a student in a standard classroom this is less critical. In answer to your comment about why the method works: Yes you have it right. All composite numbers can be written as a product of prime numbers (this is called the prime factorization) and any factors larger than the square root will have a corresponding factor smaller than the square root. (For example 51= 3 times 17. 17 is larger than the square root of 51 but the corresponding factor, 3, is smaller). Thanks for watching!

Hi! Yes this is true and there are a few other tricks for other primes as well. I don’t worry about speed too much in my courses - I prefer a consistent method that works every time even if it is slower. but for students taking a timed standardized test the faster tests are great!

I’m glad it helped!!

Glad it helped!

It is true that average and mean almost always mean (lol) the same thing. But since most textbooks and statistics courses use the term mean, that is what I use for this channel. ☺️

You are welcome!

Glad it was helpful! Any other questions I can answer?

You’re welcome!

Glad it was helpful!

Glad it helped!

My pleasure!

Hi- I’m not sure where you found this trick but it is not correct. In step 1, you have the diameter and side of a square being equal length. This is false. The diagonal of a square is never equal to the side length. It is the square root of 2 times the side length (always- see this video: ua-cam.com/video/ju4_3-oc8Vk/v-deo.html). Also pi is actually defined by the relationship between the circumference and the diameter. So the circumference is equal to pi times the diameter (or pi*2*r if you prefer to use the radius). Meaning, if you cut a string the length of the diameter and used it to measure around the circumference it would take ~3.14 times the length of the string to measure around. I hope that helps!

Great question! The alternative is to not tell your parents at all… 😉

@@JessaOnPointMathlol

I’m glad it was helpful! Let me know in the comments if there are any other questions you need help with. 🙂

@@JessaOnPointMath I need help on time management for productive studies 😅

You are welcome! Do you have a specific question I can help with?

😂🤣 love this!

Awesome!!

I’m glad your are enjoying it! stay tuned for more.😁

The final step is to add up the digits which is how you end up with a smaller number. 👍

Start with 2. triple it gives 6. Add 6 gives 12. Triple again gives 36. Double it gives 72. Then add the digits: 7+2=9. 😁

@@JessaOnPointMath ohhhh I thought it was add the digits to the previous number

Oh I see! You can have some fun with it too- it actually works for ANY whole number but you might need a calculator for larger numbers. 🙂

Bummer! It is so much fun when it works-what was your starting number?

🎉 Victory! 😜

It worked when I tried with 1! 😀

I love this! It actually works with ANY number… you can try with larger numbers too!

@@JessaOnPointMath lol I did!!! I sat there and did it over and over….I was SHOOKETH! Lol neat trick!!

Awesome!

Hi Nathan! I think you are super close- are you getting 2L twice and then dumping them together? Where are you storing the first 2L batch while you measure out the second 2L? Remember you don’t have a 3rd container. ☺️