Shodor Education Foundation
Shodor Interactivate: Comparison Estimator
Use this applet to practice your estimating skills comparing length, area, counting or a random sampling of those topics. You can also adjust the difficulty and the precision needed. The applet also lets you know how close you are to the...
Shodor Education Foundation
Shodor Interactivate: Lesson: Estimation
This lesson plan is designed to help students learn to make estimates. Resources are linked to help support the teacher and offer exploration and practice to students.
Scholastic
Scholastic: Max's Math Adventures: Max's Super Stars
Use this poem, teacher's guide, and various small manipulatives to make a great lesson on counting. There is a section for students to give their responses on the website.
Scholastic
Scholastic: Max's Math Adventures: Magnifying Max
This site has the view through Max's magnifying glass. The ants seem to be walking past him in a pattern, can you help him predict how many ants are coming next? Teachers will like the teacher's guide, activity sheet, and extra challenges.
National Council of Teachers of Mathematics
The Math Forum: Beat the Calculator: Adding Even Numbers
Can you beat the calculator? Your task is to find the sum of all even numbers between two and any selected two-digit even number. If you can find the number pattern, you are sure to beat the calculator every time. Links to other "Beat...
Scholastic
Scholastic Lesson Plan: Simple Ways to Assess Math Sense
This site has two lesson plans are presented by Marilyn Burns and associates that use children's literature to help assess math sense. One lesson plan is for use with primary students while the other is for use with intermediate students.
US Department of Education
Helping Your Child Learn Math: Math on the Go
Parents and children explore math in the world around them in this collection of math activities. Simple, engaging, and fun, these lessons offer learners the opportunity to discover math even when they're "on the go." An excellent...
TED Talks
Ted: Ted Ed: One Is One, or Is It?
This animated video explores the basic unit of one and its different meanings depending on place value. [3:55]
Texas Instruments
Texas Instruments: Water, Water
In this activity, students solve a real-world problem involving water consumption. They determine if an aquifer can be used as a water source for a new town with a population of 5,000 people.
Texas Instruments
Texas Instruments: Somewhere in Between
In this activity, students develop estimation and mental arithmetic skills for integer addition and subtraction. In this activity, the Number Line application will be used for targeting estimations.
Texas Instruments
Texas Instruments: Rational Number Rampage App
This App helps students sharpen fraction, decimal, and percentage representation skills with three games: Rational Timer, Rational Match, and Percent Square.
Texas Instruments
Texas Instruments: Square Roots
In this activity, students develop an understanding of the relationship between a number and its square root.
Texas Instruments
Texas Instruments: The Factor Game
In this activity, the teacher and students play a game which involves identifying the factors of a number.
Texas Instruments
Texas Instruments: The Large and Small Number Game
This activity gives students an opportunity to see where large and small numbers are used and how scientific notation offers a convenient method of writing such numbers.
Texas Instruments
Texas Instruments: Number and Operation Sense: Whole Numbers
In this activity, students attain a basic understanding of numbers and number operations, developing number sense, and gaining fluency in arithmetic computation. They also learn to use the calculator to explore the mathematical...
Texas Instruments
Texas Instruments: Estimation Games
Students use the calculator to compute products of numbers and to find answers to division problems. The activity is designed to help students develop number sense with the operations of multiplication and division.
Texas Instruments
Texas Instruments: Smile Mathematics App
This App contains five games that reinforce skills from the number and operations, geometry, and measurement standards. These games help students build skills in ordering numbers, choosing equivalent fractions, estimating and drawing...
Texas Instruments
Texas Instruments: The Stock Market Project
Students pick a stock that they would like to follow for a period of 2 weeks. Each day they look up the stock and chart its price. At the end of the two week period they graph their data using the graphing calculator. They compare their...
Texas Instruments
Texas Instruments: 100 or Bust
In this activity, students explore the operations of addition and subtraction. They use estimation, a place value chart, and a calculator to place seven randomly generated numbers in the ones and tens position in a place-value chart to...
Texas Instruments
Texas Instruments: Getting Started With Rational Number Rampage App
Help students sharpen fraction, decimal, and percentage representation skills with three games: Rational Timer, Rational Match, and Percent Square. Build number sense and gain confidence with using fractions,decimals, and percents.
Texas Instruments
Texas Instruments: Texas Instruments: Numb3 Rs: When Does 1 + 1 Not Equal 2?
Based off of the hit television show NUMB3RS, this lesson will get students thinking outside the box about situations in which 1 + 1 is not necessarily equal to 2. Examples includes dozens of eggs and distances which are perpendicular.
Texas Instruments
Texas Instruments: Number Smash
In this activity, students explore basic Algebra concepts and Number sense. They learn the definition of sign numbers, absolute value, and numbers of opposite sign.
Texas Instruments
Texas Instruments: Number Sense
Order of operations goes beyond the traditional basic four operations to include positive and negative exponents and parenthesizes.
Math Slice
Math Slice: Number Slice Special Test
A succinct test on number concepts including problem solving, basic operations, and computation. Assessment is scored online and student score is compared with other student test scores. Great for use as a quick assessment.