AAA Math
Aaa Math: Front End Estimation: Differences
Students use front-end estimation to solve subtraction problems. Learning exercises and games are provided to practice the skill.
University of Regina (Canada)
University of Regina: Math Central: Problem Solving Techniques
Different approaches to incorporate problem-solving skills into the elementary mathematics classroom.
National Council of Teachers of Mathematics
The Math Forum: Tessellation Tutorials
This site provides a wealth of tutorials regarding tessellation. Content ranges from basic definitions of what tessellation is, to the math behind it, to various learning activities.
NumberNut
Number Nut: Division: 2 Digit Numbers
Students are given detailed instructions and examples on how to divide multi-digit numbers.
Texas Instruments
Texas Instruments: Numb3 Rs: Pythagorean Triples
Based off of the hit television show NUMB3RS, this lesson has students explore the notion of Pythagorean triples, the "traditional" method for finding Pythagorean triples, and a method to find triples which utilizes the Fibonacci...
Texas Instruments
Texas Instruments: Getting Started With Math by Hand Concept App
This App helps students build number sense skills and gain confidence at math by hand. Review how to perform algorithms for the four basic operations (Addition, Subtraction, Multiplication, and Division). A step-by-step mode emphasizes...
Texas Instruments
Texas Instruments: Math by Hand App
This App allows students to review how to perform algorithms for the four basic operations. The three modes - the step-by-step mode, fast mode, and the Missing Pieces game allows students to learn, review, and understand the concepts for...
Texas Instruments
Texas Instruments: Going Out of Business
In this activity, students use the Pythagorean theorem to compute the diagonals of rectangles.
Math Slice
Math Slice: Sundee Slice Special Test
A concise tool for assessing a variety of math concepts including measurement, algebra, number sense, and data. Assessment is scored online immediately. An excellent tool for quick assessment.
Texas A&M University
Wtamu Virtual Math Lab: Intermediate Algebra: Operations on Real Numbers
A tutorial will guide you through the rules and steps for adding, subtracting, multiplying, and dividing real numbers, as well as evaluating numeric expressions and using order of operations. Contains step-by-step solutions to example...
Texas A&M University
Wtamu Virtual Math Lab: Beginning Algebra: Subtracting Real Numbers
A good refresher on how to perform subtraction with real numbers. Covers subtracting numbers with the same and different signs and simplifying expressions that have subtraction. View sample problems and complete practice exercises.
Stefan Warner and Steven R. Costenoble
Finite Mathematics & Applied Calculus: Real Numbers
The tutorial investigates real numbers. Students learn about the concept through class notes, practice problems, and tables. Topics include interval notation and order of operations. Quizzes are used to check for comprehension.
Wikimedia
Wikipedia: Pythagorean Triple
This Wikipedia article explains a Pythagorean triple -- the triangle formed by three positive integers. Includes examples and hyperlinked terms.
Ministry of Education and Universities of the Region of Murcia (Spain)
Ministerio De Educacion Y Ciencia: El Teorema De Pitagoras
Interactive resources and activities that could be used in the classroom either as an introduction or review to a unit dealing with the Pythagoras Theorem. [Requires Java.]
Maths Challenge
Maths challenge.net: Remainder of One
A critical thinking problem that may be solved with modular arithmetic knowledge or long had divisions. A great problem solving exercise.
TED Talks
Ted: Ted Ed: What's an Algorithm?
An algorithm is a method of solving problems both big and small. Though computers run algorithms constantly, humans can also solve problems with algorithms. David J. Malan explains how algorithms can be used in seemingly simple...
![K 5 Math Teaching Resources: Remainders [Pdf] Interactive](https://d15y2dacu3jp90.cloudfront.net/images/attachment_defaults/resource/large/FPO-knovation.png "K 5 Math Teaching Resources: Remainders [Pdf] Interactive")
K-5 Math Teaching Resources
K 5 Math Teaching Resources: Remainders [Pdf]
Practice dviding with remianders when playing this parnter game.
SEDL
The Timss Mathematics Segment: Geometry
This site explores the area of congruent triangles and how it is a difficult area to understand.
Math Open Reference
Math Open Reference: Similar Polygons and Triangles
A complete reference guide to similar triangles and polygons. It provides definitions and interactive activities that enhance further explanation.
Math Is Fun
Math Is Fun: Mathopolis: Order of Operations Quiz
A ten-question set of self-correcting questions over order of operations. Tutorials are available for help solving the problems.
Saddleback College
Algebra2 Go: Prealgebra
The resource consists of comprehensive learning tools such as class notes, video lectures, and templates through which students can review prealgebra topics.
Scholastic
Scholastic: Study Jams! Math: Multiplication of Decimals
Watch step by step how to solve a word problem involving the multiplication of decimals.
Scholastic
Scholastic: Study Jams! Math: Geometry: Classify Triangles
After completing the lesson on classifying triangles, you can sing along with karaoke and test your knowledge.
ABCya
Ab Cya: Tangrams
Students attempt to make various shapes by rearranging the geometric shapes to form a tangram.