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Algebra
Geometry
Number Sense
Lesson Study
Math videos
Math education
Elem. School Math
Teaching Math
Mathematics for Teaching
This site is NOT about making mathematics easy because it isn't. It is about making it make sense because it does.
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Table of Contents
GeoGebra
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Guest post
K-12 Math Problems
Math Ed Studies
Latest Posts in each Category
Algebra
Application of the Discriminant
Types of Problem Solving Tasks
When is it algebra and when is it arithmetic?
How do you select and sequence examples in math lesson?
FOIL Method is Distributive Law
Assessment
Student Achievement in Mathematics – TIMSS Ranking
What are the big ideas in function ?
Assessing understanding via constructing test items
Conference on Assessing Learning
Conference on Assessing Science and Mathematics Learning
Combinatorics
Linking combination and permutation with repetition
What makes counting problems difficult
Pascal’s triangle and Counting Permutations
The Counting Principle, Pascal’s Triangle, and Powers of 2
Conferences and seminars
National Seminar-Workshop for teachers about teaching the k+12 curriculum
Announcement: National Seminar-Workshop in Science and Mathematics Education
Announcement: Seminar-Workshop on GeoGebra
Curriculum Reform
The nature of math vs the nature of school math
What is reasoning? How can we teach it?
DepEd’s Explore, Firm Up, Deepen, Transfer
Why math education is failing
Teaching algebra – it pays to start early
Elementary School Math
Guest Post: 4 Awesome Kids’ Math Games
Why PEMDAS is ‘morally’ wrong
Why do we ‘invert’ the divisor in division of fractions
A triangle is a fish
Bob is learning calculation
Geogebra
The Pythagorean Theorem Puzzle
Mathlets – dynamic math applets
Curve Art in GeoGebra
Pathways to mathematical understanding using GeoGebra
Math and Multimedia Carnival # 17 will be hosted here
GeoGebra worksheets
The house of quadrilaterals
Teaching maximum area problem with GeoGebra
Teaching mathematics with GeoGebra
How to scaffold problem solving in geometry
What is a coordinates system?
Geometry
Convert a Boring Geometry Problem to Exploratory Version
Unpacking mathematics – a geometry example
A Geometric Model for the Lunch Date Problem
Pentagon to Quadrilateral Puzzle
A problem solving lesson about triangles and circles
High school mathematics
What is an inverse function?
Using cognitive conflict to teach solving inequalities
Free online calculator for problem solving and math investigation needs
Linking combination and permutation with repetition
Embedding the idea of functions in geometry lessons
Lesson Study
Patterns in the tables of integers
Pedagogical Content Knowledge Map for Integers
Lesson Study in Mathematics
How to facilitate a lesson study group
Math blogs
Top 20 Math Posts and Pages in 2012
Math blog carnival
Math Problems for K-12 with solution
Math Teachers at Play at Math Mama
Math Teachers at Play blog carnival #50
Math investigations
What is cognitive conflict approach to teaching?
Teaching combining algebraic expressions with conceptual understanding
Math investigation lesson on polygons and algebraic expressions
Solving systems of equations by elimination – why it works
Exercises, Problems, and Math Investigations
Math videos
Why PEMDAS is ‘morally’ wrong
A Geometric Model for the Lunch Date Problem
911 math assistance service
A 21st century skill: reading and writing codes
Should we do away with calculation?
Mathematics education
Guest Post: 4 Awesome Kids’ Math Games
Should we do away with calculation?
Top 5 Best Math Education Sites and Blogs
Levels of Problem Solving Skills
Develop your ‘Variable Sense’
Misconceptions
Should we define multiplication as repeated addition?
What is i equal to?
Mistakes and Misconceptions in Mathematics
Technically, Fractions are Not Numbers
From whole numbers to integers – so many things to “unlearn”
Number Sense
Guest Post: 4 Awesome Kids’ Math Games
Free Fractions Pamphlet
Why PEMDAS is ‘morally’ wrong
Why do we ‘invert’ the divisor in division of fractions
911 math assistance service
Trigonometry
Slopes of tangent lines
Teaching trigonometry via problem solving
Algebra test items: Trigonometric Functions
Trigonometry – why study triangles
What is mathematics
What is good mathematics?
Bedrock principles of math and what it means to understand math
The fun in learning mathematics is in the challenge
Can having fun and learning math coexist?
Mathematical patterns in nature