+
Lesson Plan
Curated OER

Find That Bargain!

For Teachers 7th - 12th
Students explore the methods of calculating percentages, reading and the construction of graphs, and an awareness of consumer concerns in this activity. The movement of the decimal point often results in uncertainty and confusion. This...
+
Lesson Plan
Shodor Education Foundation

Estimating With Fire

For Teachers 7th - 9th Standards
Watch the damage from a forest fire in this interactive simulation activity that challenges learners to estimate the burn area using different approaches. Learners are given a worksheet to track the different burn patterns and practice...
+
Activity
Teach Engineering

About Accuracy and Approximation

For Teachers 5th - 7th Standards
How accurate are robots? Groups draw lines by moving robots backwards and forwards by one rotation of the wheels. Using the appropriate formula, they determine the percent error in the length of the lines in relation to the calculated...
+
Lesson Plan
Curated OER

A Fraction of the Possibilities

For Teachers 12th - Higher Ed
Students review the conversion of fractions to decimals, develop strategies to compare fractions perform complex calculations using ratio techniques similar to the construction of fractions.
+
Worksheet
Curated OER

Proportional Reasoning: Ratio Applications

For Students 8th
In this ratio applications worksheet, 8th graders solve and complete 24 various types of problems that include proportional reasoning. First, they solve each pair of similar figures for the given variable. Then, students write and solve...
+
Worksheet
Curated OER

What Can We Measure About Chemicals?

For Students 9th - 12th
In this measurement worksheet, students read about accuracy of measurements as compared to the precision of measurements. Students answer four precision problems and solve four accuracy problems.
+
Worksheet
Curated OER

Formulas from Masses

For Students 10th - 12th
In this mass worksheet, students determine the percentage composition of given compounds. Students write the empirical formula from the percentage composition. This worksheet has 5 problems to solve.
+
Worksheet
Curated OER

Proportional Reasoning

For Students 7th - 10th
In this proportional reasoning worksheet, students use proportions to solve discount and sale problems. This two-page worksheet contains 4 multi-step problems.
+
Lesson Plan
Alabama Learning Exchange

The World of Integers

For Teachers 6th - 8th Standards
Review operations related to rational numbers and integers using the include PowerPoint presentation, "Interesting Integers." Young mathematicians classify rational numbers as being natural, whole, or integers and read an article about...
+
Worksheet
Yummy Math

Steep Hikes

For Students 6th - 9th Standards
Grab your hiking gear and get ready for a math adventure! Learners explore the meaning of percent grade change, as compared to the slope in an excellent worksheet activity about hiking trails in the mountains of New Hampshire. They use...
+
Unit Plan
National Security Agency

Fraction Fever

For Teachers 4th - 5th Standards
This unit on fractions allows for upper-aged elementary learners to explore ways to find the greatest common factor and least common multiple of two numbers. Ultimately, young mathematicians will be able to identify equivalent fractions,...
+
Lesson Plan
Curated OER

Pike Problems in Lake Davis

For Teachers 8th - 12th
Pike fish pose a threat to native trout and catfish in lakes. Would you drain and poison a lake to get rid of the Pike fish? If the lake was drained and poisoned, then refilled and repopulated with trout and catfish, how would you...
+
Lesson Plan
Curated OER

Illegal Fish

For Teachers 9th - 12th Standards
Your young fishermen learn about exponential function growth by interpreting the pieces of the given equation within the context of numbers of fish in a lake.
+
Lesson Plan
Curated OER

Summer Intern

For Teachers 9th - 12th Standards
Your young apprentices build a function describing the percent concentration of salt in a brine. The rational function is then related to the parent function, y= 1/x, and graphed. Finally, the apprentices predict the amount of fresh...
+
Lesson Plan
National Wildlife Federation

Lights, Camera, Action! Conducting an Energy Audit

For Teachers 5th - 8th Standards
Thirty percent of energy used by schools is used inefficiently! Part two in the series of 12 has groups perform energy audits of their schools as part of the Cool Schools Challenge. Each group is assigned a specific room, performs the...
+
Lesson Plan
Science Matters

Ring of Fire

For Teachers 6th Standards
Over a period of 35 years, earthquakes and volcanoes combined only accounted for 1.5 percent of the deaths from natural disasters in the United States. The 15th lesson plan in a 20-part series connects the locations of earthquakes and...
+
Worksheet
Curated OER

Cartoons for the Classroom: 2012 Mid-Term Elections

For Students 8th - 12th
Use a political cartoon to help scholars grasp the significant turnover in Congress following the 2012 mid-term election. A Mike Keefe cartoon uses symbols and current political lingo to convey perspective on the issue, and background...
+
Lesson Plan
Curated OER

Word Problems Dealing with Ratio and Proportion

For Teachers 6th - 8th
Mindful middle-schoolers read and solve a number of word problems. Learners copy and discuss what they believe their strategies are in solving each problem. They also write their findings and share with the rest of the class.
+
Lesson Plan
EngageNY

Analyzing a Data Set

For Teachers 9th - 10th Standards
Through discussions and journaling, classmates determine methods to associate types of functions with data presented in a table. Small groups then work with examples and exercises to refine their methods and find functions that work to...
+
Worksheet
Curated OER

Proportion to Percentage

For Students 7th
In this division worksheet, 7th graders divide the proportion number given by the whole and move the decimal point to place to find the percent value.
+
Lesson Plan
Curated OER

The Clumsy Tiler N (Fractions)

For Teachers 4th - 7th
Students explore patterns and geometric sequencing. Students devise and use problem solving strategies to explore situations mathematically. Students solve real life problems. They demonstrate, with cardboard pieces, fraction and...
+
Lesson Plan
Curated OER

Coin Conversions

For Teachers 5th
Fifth graders engage in the study of conversions from decimals to percents while examining monetary values. They explain the relationships between the equivalency interchanging decimals with percents. Then students write about the...
+
Worksheet
Curated OER

Percentages and Fractions of Amounts

For Students 6th - 7th
In this math worksheet, students change percents to fractions on five problems. Students complete a table. Students find a given percent of five numbers. They complete five story problems involving percents.
+
Lesson Plan
Curated OER

Teaching Percentages

For Teachers 4th - 6th
Students calculate percentages using the Percent Tricks method. They multiply and divide whole numbers. They count total number of candies in a bag and calculate the percent of each color.