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MathPickle

Rated 4.88 out of 5, based on 46 reviews

85 Followers

Alberta, Canada

About the store

Gordon Hamilton (MMath, PhD) is a mathematician and board game designer. He founded MathPickle.com in 2010 to inject hard, fun problems, puzzles and mini-competitions into math classrooms world wide. In the last year he has been featured twice in the New York Times. In November 2013, he co-hosted a conference of mathematicians and educators to select thirteen curricular unsolved problems of mathematics - one for each grade K-12. In 2015 he will be co-hosting a conference on integer sequences in the math classroom.

Beetle Sort! A pattern puzzle for kindergarten through grade 2.

Mishap at Venn Zoo (mirror and rotational symmetry $100 Classroom Challenge)

Lichen Puzzles (multiplication & subtraction with $100 challenge)

No-Three-In-A-Line Pattern Problem ($100 challenge)

All resources

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Lichen Puzzles (multiplication & subtraction with $100 challenge)

Created by

MathPickle

Lichen puzzles give your students practice with multiplication and subtraction. Children will be asked to do products like 2 x 13 = 26 and 5 x 8 = 40. The puzzle is also perfect to revisit basic multiplication in later grades because top students will be deflected into tough problem solving (never a waste of their time) while you can focus on getting the rest of the class caught up curricularly. ___________ Standards for Mathematical Practice: All

3rd - 6th

Basic Operations, Math

CCSS

3.NBT.A.2

, 4.NBT.B.5

, 3.OA.A.1

Ballast - multiplication puzzle with $100 classroom challenge

Created by

MathPickle

Each multiplication puzzle consists of three warships that need to be loaded with ballast so that they are balanced. Unfortunately this is impossible for one of the ships - it will keel over and sink no matter what you do. The other two ships can be loaded with ballast so they are nicely balanced. Multiplication difficulty ranges from easy (2 x 3 = 6) to hard (13 x 17 = 221). Problem solving difficulty ranges from easy to open ended.

3rd - 5th

Arithmetic, Basic Operations

Ballast - addition puzzle with $100 classroom challenge

Created by

MathPickle

Each addition puzzle consists of three warships that need to be loaded with ballast so that they are balanced. Unfortunately this is impossible for one of the ships - it will keel over and sink no matter what you do. The other two ships can be loaded with ballast so they are nicely balanced. Addition difficulty ranges from easy (1 + 4 = 5) to hard (59 + 69 + 25 = 153). Problem solving difficulty ranges from easy to open ended.

1st - 3rd

Arithmetic, Basic Operations

The Nasty Mr. Sneeze - addition practice ($500 classroom challenge)

Created by

MathPickle

This puzzle is a great way for students to practice addition, find patterns, and compare the number of germs in two regions. For those top students who are beyond acquiring these curricular skills - they will be thoroughly absorbed in the problem solving. I've listed this exercise as taking 45 minutes, but you could use it for much, much longer as it is brilliantly open ended.

K - 2nd, Higher Education

Basic Operations, Math

Showing 1-4 of 4 results

About the store

Experience

Teaching style

All students, especially the top ones, should experience failure every day. Doing this in a light-hearted way helps remove the stigma of failure from the classroom. I fail in front of my students regularly. It's okay. I get over it. So will they ;-)

Awards & shining teacher moments

No honors or awards yet for MathPickle, but the uplifting testimonials and emails from educators make up for the lack of official recognition. Here is a sample: "Hi Gordon, I stumbled upon your site, MathPickle.com, this morning and two hours later I'm still there. Just wanted to drop you a brief note to say thank you for all the great resources, ideas, and inspiring videos! I can't wait to use some these materials this Fall with my elementary mathematics methods students as well as try the unsolved problems with my two children. Thank you, Amy Tanner (Assistant Professor, Education Department, St. Catherine University)"