Comparing Numbers in 3rd Grade

In 3rd grade, students transition from plotting, ordering, and comparing 3-digits numbers to performing...

Sub Plans for High School Math Class – Webquests are Perfect!

Distance learning ... hybrid learning ... asynchronous learning ...   we're all learning different terms right now!  Here is a type of activity would be...

Golden ellipse

A golden ellipse is an ellipse whose axes are in golden proportion. That is,...

Diophantine Books Problem and Circles Inscribed in Squares

TI-84 Plus CE Python: Diophantine Books Problem and Circles Inscribed in Squares Introduction The two programs presented today are Python...

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Non-Euclidean geometry – Intellectual Mathematics

Podcast: DownloadThe discovery of non-Euclidean geometry in the 19th century radically undermined traditional conceptions of the relation between mathematics and the world. Instead of...

Annotate and Acknowledge – IM CERTIFIED® BLOG

By Jen Hawkins, IM Certified® Facilitator and Independent Curriculum Implementation Specialist As I sat at the table in the back of the room, I watched...

early modern philosophical interpretations of geometry – Intellectual Mathematics

Podcast: DownloadPhilosophical movements in the 17th century tried to mimic the geometrical method of the ancients. Some saw Euclid—with his ruler and compass in...

Let f(x) be a continuously differentiable function on the interval

JEE Advanced 2024 Maths Question Paper 1 Online MCQ (Single Correct Answer) Marks: +3, -1 Question: Let f(x) be a continuously differentiable function on the interval (0, ∞)...

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Eddie’s Math and Calculator Blog: Spotlight: Texas Instruments TI-30 ECO RS: The Solar TI-30Xa

Spotlight: Texas Instruments TI-30 ECO RS: The Solar TI-30Xa Quick Facts Model: TI-30 ECO RS Company: Texas Instruments Timeline: 2015 – present (Europe Type: ...

Building a Strong Foundation in Computer Science: A Path to Future Professional Success

Last Updated on August 4, 2023 by user The world is becoming increasingly reliant on technology, and computer science has become an integral part of...

Intersections — Poetry with Mathematics: World’s Most Interesting Mathematician

     Angela Tabiri, a young mathematician from Ghana, in July captured global attention by winning the title,  World’s Most Interesting Mathematician. Here is her...

22×22 Math Magic Square

  Finding the tour is  definitely a challenge

Subtraction Word Problems – 2-Digit Numbers

Understand the concept on subtraction word problems - 2-digit numbers for the second grade. Read the question carefully to subtract the two-digit numbers to find the...

Pre Calculus Problems and Solutions (Part -1)

Problem 1 :The point P(3, 8) is on the graph of y = bx, where b > 1.  The corresponding point P' on the...

Solving Exponential Equations Problems and Solutions (Part

Problem 1 :Solve for x : Solution : https://www.youtube.com/watch?v=1p7DCFZRoc8 Problem 2 : Solution : https://www.youtube.com/watch?v=LB7JUct0XFc Problem 3Solve for x : Solution : https://www.youtube.com/watch?v=gvMrQzPWfCw Problem 4Solve for x : Solution : https://www.youtube.com/watch?v=xgIi5t7g_SU Problem 58x + P ⋅ 42x...

2024 Summer Game #13: Series Solitaire

There’s a lot of things I love about teaching RightStart Math to my children, but one of the top reasons is this: all the...

Witch Hat Pentominoes Puzzle for Halloween

Looking for a fun Halloween puzzle? Check out this pentominoes witch hat puzzle from Simona Fiorentino. Combine this with the Jack-o-Lantern Pentomino Puzzle, and...

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Triangles to Triangles

The set of functions of the form f(z) = (az + b)/(cz...

Digital SAT Math Problems and Solutions (Part

Problem 1 :Given that f(x) = 3(x - a)(x - b)(x -...

Foster a Growth Mindset and Reduce Exam Stress in UK KS2 SATs with Mathletics

As May approaches, Key Stage 2 SATs in the UK mark...

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How the continuum hypothesis could have been a fundamental axiom

Joel David Hamkins, “How the continuum hypothesis could have been a fundamental axiom,” Journal for the Philosophy of Mathematics (2024), arxiv:2407.02463. Abstract. I describe a...

Measuring Mass & Weight in 3rd Grade

Young children experience the measurable attribute of mass and weight as “heavy” or “light.” Learning how to measure in standard units in the 3rd...

Simplifying Radicals Domino Activity | Teaching High School Math

Now that my classes are consistently back in person and all students are present, I am creating quick activities for my class to use...

The continuum hypothesis could have been a fundamental axiom, CFORS Grad Conference, Oslo, June 2024

I shall be giving a keynote lecture for the CFORS Grad Conference at the University of Oslo, 19-20 June 2024. Abstract. I shall describe a simple...

The covering reflection theorem, Madison Logic Seminar, October 2024

This will be a talk at the UW Madison Logic Seminar on 22 October 2024. Abstract. The principle of covering reflection holds of a...

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How we might have viewed the continuum hypothesis as a fundamental axiom necessary for mathematics, Oxford Phil Maths seminar, May 2025

This will be a talk for the Philosophy of Mathematics Seminar at the University of Oxford, 19 May 2025. Abstract. I shall describe a simple...

FREEBIE Algebra Riddle Solving Quadratic Equations by Factoring

Coming to you quickly today to let you know I have a freebie available if you sign up for my email list!I designed this...

The covering reflection theorem, Madison Logic Seminar, October 2024

This will be a talk at the UW Madison Logic Seminar on 22 October 2024. Abstract. The principle of covering reflection holds of a...

Compose & Decompose 4-Digit Numbers in 3rd Grade

We have a base-10 number system. That means we can use 9 digits plus place-holder zeros to represent any quantity. In standard form, numbers...

Google Forms for Formative Assessment in Math Class

Cheers to a new school year that will be unlike any school year before!I know that all of us are looking at new and...

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49×49 Math Magic Square (Pattern 3)

Featured Post Rhombus Math Magic 1...

Calculators – updated | Mathematics, Learning and Technology

New from Casio – videos on the ClassWiz series, a YouTube playlist of 38 videos. https://www.youtube.com/watch?v=MovKa26hFrk https://www.youtube.com/watch?v=o-TD9i6OsEY I have now updated the series of Calculator pages, all of which are now available...

When 1+1 Equals 1 |

dedicated to Norman Skliar and Sidney Cahn In an earlier blog-essay, When 1+1 Equals 0, I explained how 1 + 1 = 0 makes sense in mod 2 arithmetic; today...

A Little AIME Problem | mathgarage

A Little AIME Problem Posted: May 16, 2022 in Mathematics Tags: AIME, math, Math Contest Solution In general, let By Pythagoras Identity, Solve this system by adding and subtracting, we get Hence, and Therefore, Let , then

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