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Worksheet
Curated OER

Add and Subtract Decimal Thousandths (G)

For Students 4th - 5th
In this decimals worksheet, students solve 50 problems in which decimal numbers to the thousandths place are added or subtracted. Problems will need to be rewritten on another paper.
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Worksheet
Curated OER

Math Vocabulary Fill-In Puzzle

For Students 4th - 6th
In this math vocabulary puzzle, students use a set of definition clues given to solve a crossword puzzle. A reference web site is given for additional activities.
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Worksheet
Curated OER

Math Vocabulary Review

For Students 5th - 6th
In this math vocabulary instructional activity, students read a set of 15 math related definitions and write the words being defined. A reference web site is included for additional activities. 
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Lesson Plan
Curated OER

Block It: Using a Manipulative to Solve Math Problems

For Teachers 1st - 3rd
Students practice using visuals to solve math problems. In this math manipulative lesson, students utilize pattern blocks to participate in a class game in which geometric shapes touch other player's pieces. Students gain points based on...
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Calculating Sums: Less Than, Greater Than, or Equal To

For Students 3rd - 5th
[Free Registration/Login may be required to access all resource tools.] Locate the video "Calculating Sums: Less Than, Greater Than, or Equal to." In this learning module, students apply their addition and subtraction skills in comparing...
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Calculating Sums: Less Than, Greater Than, or Equal To

For Students 3rd - 5th
[Free Registration/Login may be required to access all resource tools.] Locate the video "Calculating Sums: Less Than, Greater Than, or Equal to Numbers (Numbers to 1,000)." In this learning module, students must add or subtract to find...
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Calculating Sums (Numbers Up to 100,000)

For Students 4th - 5th Standards
[Free Registration/Login may be required to access all resource tools.] In this learning module, students are presented with a set of numbers up to 100,000, most of which end with one or more zeroes, and must apply their understanding of...
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Calculating Sums Numbers Up to 100000

For Students 3rd - 5th Standards
[Free Registration/Login may be required to access all resource tools.] Students use place value to practice with addition skills.
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Activity
Other

Good Calculators: Cone Volume Calculator

For Students 9th - 10th
For the purpose of obtaining results for several cones simultaneously, you can introduce into the calculator the multiple values of the cone. The calculator then will automatically sum the cone volume results which provides the...
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Interactive
Sophia Learning

Sophia: Sum of Angles in Polygons

For Students 6th - 8th
This tutorial with video and slideshow components investigate the characteristics of polygons as well as how to calculate the interior and exterior angles of any polygon. It offers two PowerPoint presentations and two videos that feature...
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Activity
Texas Instruments

Texas Instruments: Approximating Integrals With Riemann Sums

For Teachers 9th - 10th
In this activity, students calculate Riemann sums. They demonstrate when the Riemann sums will over-approximate a definite integral. They also observe the convergence of Riemann sums as the number of subintervals get larger.
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Activity
National Council of Teachers of Mathematics

The Math Forum: Beat the Calculator: Adding Even Numbers

For Students 4th - 6th Standards
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...
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Unit Plan
CK-12 Foundation

Ck 12: Analysis: Series Sums and Gauss' Formula

For Students 11th - 12th
[Free Registration/Login may be required to access all resource tools.] In this lesson students will be calculating the sums of the terms in a series. Students examine guided notes, review guided practice, watch instructional videos and...
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Unit Plan
CK-12 Foundation

Ck 12: Analysis: Sums of Finite Geometric Series

For Students 11th - 12th
[Free Registration/Login may be required to access all resource tools.] Calculating the sums of finite geometric series
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Unit Plan
CK-12 Foundation

Ck 12: Analysis: Sums of Infinite Geometric Series

For Students 11th - 12th
[Free Registration/Login may be required to access all resource tools.] Calculating the sum of the values in an infinite geometric series
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Unit Plan
CK-12 Foundation

Ck 12: Analysis: Sums of Finite Geometric Series

For Students 10th - 12th Standards
[Free Registration/Login may be required to access all resource tools.] This lesson covers finding the sum of a geometric series using the formula and the calculator.
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Interactive
Calculator Soup

Calculator Soup: Triangle Theorems Calculator

For Students 9th - 10th Standards
Each calculation option has sub-bullets that list the sequence of methods used in this calculator to solve for unknown angle and side values including Sum of Angles in a Triangle, Law of Sines, and Law of Cosines.
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Activity
Texas Instruments

Texas Instruments: Ti 89 Riemann Sum Activities for Calculus

For Teachers 9th - 10th
In this Computer Algebra System (CAS) activity students use Riemann sums to estimate the distance traveled on a trip at various speeds. They utilize the concept of Riemann sums to calculate the area under a curve. Students find limits of...
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Unit Plan
CK-12 Foundation

Ck 12: Analysis: Problem Solving With Series Sums

For Students 11th - 12th
[Free Registration/Login may be required to access all resource tools.] More on calculating the partial sums of arithmetic series.
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Activity
Varsity Tutors

Varsity Tutors: Hotmath: Graphing Calculator Practice Problems Geometry

For Students 9th - 10th Standards
Practice using your graphing calculator for Geometry problems. If you get stumped or if you would like to check your work, then select the View Solution button, which is located directly under each problem.
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Activity
Texas Instruments

Texas Instruments: Analyzing Number Cube Sums

For Teachers 6th - 8th
In this activity, students extend their understanding of theoretical probability and patterns. They use number cubes, to build awareness that a fraction and its decimal and percent representation on the calculator are "close," but not...
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Activity
Texas Instruments

Texas Instruments: Sums of Rectangle Areas: Approximate Integrals

For Teachers 9th - 10th
This activity will show a function with rectangle areas on the graphing calculator.
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Unknown Type
Houghton Mifflin Harcourt

Houghton Mifflin Harcourt: Saxon Activity Center: Graphing Calculator Activity: Average [Pdf]

For Students 9th - 10th Standards
A concise graphing calculator lesson on calculating average. Detailed examples, demonstrations of calculator functions, and practice problems included. Acrobat Reader required.
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Interactive
Calculator Soup

Calculator Soup: Estimating Sums and Differences of Fractions Calculator

For Students 9th - 10th
Estimate sums and differences for positive proper fractions, n/d (numerator/denominator). Use rounding to estimate answers when adding or subtracting proper fractions.