Adrienne Hestenes

Adrienne Hestenes

@ahestenes.bsky.social

Math, books, crochet. #MTBoS #ITeachMath

113 Followers 207 Following 213 Posts Joined May 2025
10 hours ago

Our campus will ticket people who back in because they really hold up traffic when students are trying to get to school in the morning.

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1 day ago

Great idea. I’m going to use this next semester.

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1 day ago

This looks fun. I saved a copy to try with my class later.

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3 days ago

I just volunteered my students to puzzle test for this. I loved thee big yellow game book he did. #MTBoS

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2 weeks ago

Wow! That’s way better than my multiplying by the conjugate way.

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2 weeks ago

Thanks for sharing!

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2 weeks ago

Only ever used it in an upper division Astronomy class with spherical trig. By that time, it was a trivial calculation to pick up if you had never seen arcminutes. I skip it in pre-Calc unless I have extra time.

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3 weeks ago

Love it! Keep ‘em coming!

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3 weeks ago
Vector field F=<y-x, -x-y>  has been overlayed onto a snail shell.  The vectors point in the direction of the spiral of the shell.  Student has taken a picture of a rift in the ground and overlayed a vector field where the vectors approach the rift generally at right angles and then turn into the rift and crash out pointing down.
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3 weeks ago
Image is a subsection of Van Goghs Starry Night.  It’s the large whorl in the sky.  Over the image is a vector field which points along the whorl. The vector field is -sin(x-y) for the i component and cos(x+y) for the j component.  The vector field is handwritten.  The image is black and white. The vector field F=<x,2-x^2> is overlayed on the image of a fountain in a pond.  The water sprays straight up and falls down into a circular region.  The vectors point along the motion of the water.

Vector fields as art. In #MathsToday the students had to create a vector field and overlay it with a picture to create Vector Art.

Just a fun little extension at the end of a unit. #iTeachMath

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1 month ago

This looks fun. Do you have a link you can share for the document?

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1 month ago
Preview
Christmas (2025) is over Welcome to 2026 everyone! It's time to reveal the answers to the Advent Calendar puzzles and announce the winners. But first, some good news: with your help, Santa was able to order a new sleigh and C...

OMG I won!

www.mscroggs.co.uk/blog/122

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1 month ago

What a great idea!

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1 month ago

Last challenge was to use at least 3 logs to create log8. Students were really creative. But the fact that one group had log2+log2+log2 and another had 3log2 helped move towards the log(2^3)=log8.

It was a nice way to informally introduce log properties and play with log tables b4 formalizing.

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1 month ago

In #MathsToday we had success discovering the log properties. I had students use a log table to find all the ways to combine logs to equal log2, which led to them noticing the loga-logb=log(a/b) property. Then they looked for ways to make log12 (which led to discovering the product property.

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1 month ago

Fire and Ice!

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1 month ago

Your prompt has really gotten me thinking. I’ll have to share it with some students and see what they come up with.

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1 month ago
A square divided into 4 rectangles each n by n+1 in dimensions arrayed around one digit at the center.  My attempt to show a visual proof that and odd square number is one more than a multiple of 8.

Or perhaps this visual I made on Polypad showing the 4 copies of the product of consecutive numbers.

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1 month ago
A visual proof that an odd number squared equals 8 times a triangular number plus one.  This image is a 9 by 9 grid with the center square colored purple.  The remaining squares are broken into 8 equal triangles of 10 and colored to look like a pinwheel.  So 81 = 9^2 = 8(10)+1.

A neat extension seen on Facebook. A visual proof that an odd number squared is also 8 times a triangular number plus one.

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1 month ago

You can modify the prompt and get a second problem. How many different slopes can there be for segments connecting grid points? How does that change with the grid size?

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1 month ago

I applied.

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1 month ago

Wait… I thought all cows were spherical….

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1 month ago
A picture of the previously described map

I only have a small printer at home. But here it is! It’s on the fridge so the teen will see it and ask about it. 😀

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1 month ago

Thanks! I’m printing the knot map out now…

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1 month ago

I had the same thought about the poster.

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1 month ago

That is beyond sweet! Happy birthday.

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1 month ago

I’m enjoying following along on your blog too.

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1 month ago
Student whiteboard work which shows an attempt at drawing the Koch snowflake.  Start with a triangle, divide each sides into thirds, and replace the middle third with a new equilateral triangle, then repeat.  Below the Koch Curve is a table which records the number of sides in column one, the length of a side in column 2, and the third column will hold the perimeter, but is currently empty.  The rows represent the iteration.  Below the table the students are working on are some multiplication calculations.  Student white board work shows a table with the following columns; stage number, number of sides, side lengths, and perimeter.  The stage nUmber column contains 0, 1,2,3,n.  The number of sides column contains 3,12,48,192 and the function 3(4^n).  The side lengths column contains 1,1/3,1/9,1/27, and the function 1/3^n.  The perimeter column contains 3,4,48/9,7 (sic), and the function 3(4^x)/(3^n).

In #MathsToday we used the Koch Snowflake to review writing exponential equations from data. Students then discussed what the end behavior would be for the equation of the perimeter.

The kids enjoyed hearing how this was thought “abominable” by mathematicians when first discovered.

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1 month ago

How timely. We are doing this lesson tomorrow!

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1 month ago
Preview
Vector Fields, Math and Art. This website allows you to build and explore beautiful world of vector fields.

In #MathsToday we learned how to sketch vector fields. Then we had some fun with this neat app. Try the randomize button. #maths #MathArt

anvaka.github.io/fieldplay/?c...

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