If anyone wants to send me a holiday card, I would absolutely love one (even if we've never chatted)! Howie Hua PO Box 28003 Fresno, CA 93729

Fun mental math trick: All odd numbers can be written as the difference of two consecutive square numbers. Here's how we can do this mentally.

🚨 ATTN. New Jersey: MIKIE SHERRILL… - Refuses to commit that she won’t raise New Jersey’s sales tax. - Her plan will “cost you an arm and a leg, but if you’re a good person, YOU’LL DO IT.” As Governor, Mikie Sherrill will make YOU PAY! Vote AGAINST her on 11/4.

It's Mental Math Monday! What goes on in your head when you're mentally calculating 45% of 40?

I wish the geometric mean was taught like this

New trick toss unlocked

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If it takes Elmo 1 1/2 minutes to build a snowman and Rocco takes 2 minutes to build a snowman, how fast can they build a snowman if they work together?

Mean Girls but it's a movie about Cady learning the different types of mean.

It's October 3rd, Mean Girls Day, so let's see when the limit does not exist.

If October 3rd is Mean Girls Day, when is Median Girls Day and when is Mode Girls Day?

If chicken nuggets only came in boxes of 6 and 7, what's the largest order not possible?

If chicken nuggets only came in boxes of 5 and 18, what's the largest order NOT possible?

I wish I was taught this way of finding the greatest common factor when I was in school

How high can we lift the string? If you are teaching the Pythagorean theorem, I highly recommend this problem!

It's Mental Math Monday with guest @LongFormMath. How would you mentally calculate 16+17+18+19+20?

Tonight's trick toss

When dividing by a fraction, a lot of people think about the measurement model, but we can think about the partitive model too! Here's why I think the partitive model is powerful.

TODAY'S THE DAY! It's one of the coolest dates of our lifetime. Whether you go by month/day/year or day/month/year, if we write the date as one number, we will get a square number! Both sides can agree that today's date is a square date. 9,272,025=3045² 27,092,025=5205²

It’s book giveaway time 🙌 Like, share and comment with your favourite game to play in the classroom, for a chance to be one of two people drawn to win a copy. #playfullearning

How can we convert a repeating decimal into a fraction?

😱 I was featured on Popular Science! https://t.co/WEccefjQd9

Today's date, 9/25/2025, is probably the last date of our lifetime where the month, day, and year are all square numbers 😱 Next time this will happen is 1/1/2116.