University of Colorado
Spacecraft Speed
Space shuttles traveled around Earth at a speed of 17,500 miles per hour, way faster than trains, planes, or automobiles travel! In the 13th installment of 22, groups graph different speeds to show how quickly spacecraft move through...
Illustrative Mathematics
Banana Bread
Show your future bakers how to choose the right baking pan by calculating the volume of a pan. The resource compares two pans, one with decimal edge lengths and is too small for the recipe and one that may work. Your number crunchers are...
Rational Number Project
Initial Fraction Ideas Lesson 18: Overview
Develop young mathematicians' ability to compare fractions with investigation into the number 1/2. After brainstorming a list of fractions equivalent to 1/2, children identify a pattern in the numerators and denominators that allows them...
Curated OER
A High-Interest Novel Helps Struggling Readers Confront Bullying in Schools
Bully, bullied, or bystander? Paul Langan's The Bully is the anchor text in a unit that examines bullying and violence. After a close reading of the text, readers imagine themselves as the characters and consider how they would react in...
Illustrative Mathematics
Accuracy of Carbon 14 Dating II
The scientific issue of carbon-14 dating and exponential decay gets a statistics-based treatment in this problem. The class starts with a basic investigation of carbon content, but then branches out to questions of accuracy and ranges of...
Mathematics Assessment Project
A Million Dollars
Could you carry a million dollars in $1 bills? As a middle school assessment task, learners investigate different questions regarding a million dollars. They then determine how long it would take to make a million dollars, how many...
Global Oneness Project
Witnessing Icebergs
Camille Seaman's photoessay, "Witnessing Icebergs" documents just a tip of the problem of climate change through images of icebergs in both the Arctic and Antarctic polar regions. After viewing the haunting images, viewers respond to a...
Math Wire
Gingerbread Man Combinations
Gingerbread men are just like us—they're unique! Discover how many combinations are possible when constructing a gingerbread man with several choices for shapes and colors of eyes, noses, and buttons.
Curated OER
Estimating and Rounding
In this estimation and rounding activity, learners solve ten multiplication problems by using estimation and rounding skills. This is an interactive activity.
Curated OER
Mound Math
Students examine the many different burial mounds in Wisconsin. In groups, they use the internet to discover how long it took to build a specific mound. They must calculate the measurements of the mound to make a scale model.
Curated OER
Venn Diagrams & Word Problems
Students explore the concept of Venn Diagrams through word problems. In this Venn Diagram lesson, students solve word problems about groups of people using Venn Diagrams. Students use survey results about MySpace and Facebook in a Venn...
Teacher Created Materials
Estimating Quotients
In this math worksheet, students learn to estimate a quotient to see if an answer is reasonable. They complete the long division to get an exact answer in 18 problems. Detailed directions are also given on how to check a division...
Pennsylvania Department of Education
Volume of Compound Figures
Fifth graders use patterns, models and relationships to solve equations. In this equations lesson, 5th graders define vocabulary for equations and complete worksheets explaining variables and solving problems.
Curated OER
Life is Full of Problems
Pupils use the problem solving strategy of guess and check to investigate math word problems. They determine which problem solving strategy or strategies would work best in problem situations.
Curated OER
BASE-ic Space Travel
In this 3-day place-value lesson, upper-elementary kids investigate the base 5 and base 2 systems as an introduction to exponents and powers. They create a pocket chart to help ground their understanding of bases, exponents, and powers,...
Curated OER
Aldridge Sawmill - The Story in Numbers
Seventh graders view overhead maps of Texas, explore history of Aldrige Sawmill, and practice math skills while becoming familiar with Texas' "Boom & Bust" economy and natural history of east Texas Piney Woods.
Curated OER
Aldridge Sawmill - The Story in Numbers
Seventh graders practice math skills while becoming familiar with Texas' "Boom & Bust" economy and the natural history of the east Texas Piney Woods. They utilize worksheets and websites imbedded in this plan.
Curated OER
Paint By The Numbers
Students, in groups, explore how astronomical spacecraft and computers create images of objects in space.
Curated OER
It's In the Numbers
Pupils explore the careers available in the field of oceanography. They discover the difference between a job and a career and the need for a good education. They work together to create a presentation about oceanography.
Curated OER
Estimating With Decimals
In this math learning exercise, students complete 14 problems where they estimate money amounts and multiplication products using numbers with decimals. Examples are provided in this well-designed learning exercise.
Curated OER
Estimating
In this estimating worksheet, students solve 6 different problems that include some form of estimation in each. First, they define estimate as a way to round their answers sensible and carry out the calculation by hand. Then, students...
Curated OER
Estimation
Students explore the concept of estimation. In this estimation activity, students discuss making estimates through teacher led discussion. Students use the Internet to complete an activity where they must estimate the length of lines.
Curated OER
Examining Estimation
Second graders participate in various activities which help them explain and explain the difference between an estimate and an exact amount.
Curated OER
The Babylonian Algorithm, Limits and Rates of Change
In this successive approximations worksheet, students use the Babylonian algorithm to determine the roots of given numbers. They identify the limits of a function, and compute the rate of change in a linear function. This two-page...
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