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Interested in creating a piece of music using math manipulatives for the 2025 Polypad Art and Music Contest? Explore the "Making Music in Polypad" activity on the contest page at polypad.amplify.com/contest and get started today!

The 2nd deck in Addition and Subtraction by Heart II has addition facts within 20 and focuses on place value. For the first few times students see a card, they can click on a number above 10 to split the number. Learn more at fluency.amplify.com

Want to learn about making a piece of visual art of the 2025 Polypad Art and Music Contest? Get started here: teacher.desmos.com/activitybuilde…

The number tiles, number cards, and the exploding dot machine from on Polypad can model subtraction with regrouping in a variety of ways. Learn more in this Polypad Pointer video at youtube.com/watch?v=QMPcxp…

Deck 3 of Addition and Subtraction by Heart 2, uses number bars to provide the most abstract representation of addition within 20. Try for yourself and learn more about the free fluency practice resource at fluency.amplify.com

Did you know you can split the Algebra Tiles on Polypad? Can you figure out what will balance the bottom scale in this picture?

Gaspard Monge, a founder of differential geometry, was born 278 years ago today. Monge invented orthographic projection and descriptive geometry, which allows the representation of three-dimensional objects using two-dimensional drawings. Learn more here: mathigon.org/timeline/monge

Today we celebrate the birthday of two great female mathematicians. Maryam Mirzakhani studied objects like hyperbolic surfaces and complex manifolds. She was particularly fascinated by the beauty of mathematics, and received the Fields Medal in 2014. Learn more here:

Florence Nightingale is best known as a nurse, but she also pioneered data science and statistics in order to evaluate different medical treatments. She was born 205 years ago #onthisday. Learn more here: mathigon.org/timeline/night…

Interested in creating a piece of art using math manipulatives for the 2025 Polypad Art and Music Contest? Explore the "Making Visual Art in Polpad" activity on the contest page at polypad.amplify.com/contest and get started today!

Have you heard? We're also on Bluesky! 💙 Follow us there for feature updates, new free lessons, and more exclusive content about the platform! Follow us here: bsky.app/profile/amplif… #mtbos #iteachmath

Deck 4 of Addition and Subtraction by Heart uses numbers cards and focuses on subtraction problems within 20 in which decomposing is not necessary. At times, students can click on a card greater than 10 to split it into two parts. Learn more at fluency.amplify.com

Maria Gaetana Agnesi was born 225 years ago today. She was an Italian mathematician and was the first western woman to write a mathematics textbook and the first woman to be appointed professor at a university. Learn more here: mathigon.org/timeline/agnesi

Bertrand Russell was born 153 years ago today. The British philosopher, mathematician and author tried to create a formal, logical foundation for all of math. He was also a passionate pacifist, and received the Nobel Prize in Literature. Learn more here: mathigon.org/timeline/russe…

Abraham de Moivre was born 358 years ago today. He discovered a formula linking complex numbers and trigonometry, first conjectured the central limit theorem, and found a non-recursive formula for Fibonacci numbers using the golden ratio. Learn more here: mathigon.org/timeline/de-mo…

Want to learn about making a piece of visual art of the 2025 Polypad Art and Music Contest? Get started here: teacher.desmos.com/activitybuilde…

72 years ago today, Edmund Hillary and Tenzing Norgay reached the top of Mount Everest. More than a century earlier, mathematicians used trigonometry to calculate its precise height. Learn more at math.fit/mountains

In case you missed the announcement, the 2025 Polypad Art and Music Contest is on-going! Looking for a great end-of-year activity? This is the perfect thing. Learn more at polypad.amplify.com/contest

Mathematics has applications across so many parts of everyday life - from weather prediction to bridge design, crowd control to music shuffling, and fraud detection, to name a few. Explore many more interesting examples at mathigon.org/applications

Start with 100 dice. Roll them and remove all the sixes. Repeat until there are 25 or less dice left. How many rounds will this take? Learn more about exploring this idea with students in this Polypad Pointer video: youtu.be/cJbLOWkx9KI