Curated OER
Amazon Rainforest Conservation, Brazil
Students explore rain forests. In this rain forest lesson, students participate in a "BioBlitz" of their schoolyard, observing and recording every living thing in a designated area. Students visit websites about rain forests...
Curated OER
Every Breath You Take
Middle schoolers explore the nature of the air we breathe by observing petri dishes that have accumulated particulate matter from the atmosphere. Students make mathematical calculations and inferences about the effect of this matter on...
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Body Proportion
Fourth graders measure the height and arm span of various classmates. They use a spreadsheet to design a graph that shows the class measurements from tallest to shortest in metric and standard systems.
Curated OER
Egyptian Weather Lesson
Students chart temperatures in Egypt on spreadsheet to determine how weather conditions affect lifestyles.
Curated OER
The Snack Bar
Sixth graders complete a purchase order. In this ratios and patterns lesson, 6th graders work in groups to complete a purchase order for a grand opening of the school snack bar. Students use rations to figure out the need and quantity...
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Ohio Census 1990 and 2000
Students explore the Ohio census numbers in 1990 and 2000. In this social studies lesson, students use the census data to answer questions.
Curated OER
Transportation Through Time
Third graders measure the speed at which they can walk in order to understand speed and distance traveled. They then research the history of transportation and express data in a class timeline.
Curated OER
2 digit subtraction
Second graders subtract numbers 0 through 10 from 2 digit numbers using different subtraction methods. In this subtraction lesson plan, 2nd graders practice crossing out numbers in a number line, using a 10, and using their fingers to...
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Multiplying Decimals and Mixed Numbers
Students multiply decimals and/or mixed numbers. They explore the effects of multiplying decimals and mixed numbers. They practice estimating answers when a number is multiplied by a decimal or mixed number.
Curated OER
Using Newsprint as a UV Detector
Young scholars investigate the effects of UV radiation. In this earth science lesson, students explain how the time of day relate to UV abundance on Earth. They determine if weather affects the amount of UV that Earth receives.
Curated OER
Reading Trees: Understanding Dendrochronology
Young scholars examine tree-ring dating and discuss the lack of water the settlers in Jamestown faced. They create paper tree rings, simulate rain patterns, and describe the history of construction paper tree sequences.
Curated OER
Worksheet 19
In this math activity, students try to fit a line to a set of data. Then they use the least squares method is based on minimizing the sum of the squares of the errors.
Curated OER
Too Many Tens
Students practice grouping in different ways by putting numbers up to 1,000 in the correct place value. In this place value lesson plan, students estimate items in a jar and then count them out by grouping them by 10s.
Curated OER
Got These Properties? (Commutative in Addition/Zero in Addition and Subtraction)
Second graders examine the commutative property of addition and the property of zero in addition and subtraction. They complete an asessment worksheet to gain practice reading and working number sentences horizontally and vertically.
CK-12 Foundation
Ck 12: Arithmetic: Problem Solving Plan, Estimation With Decimals
[Free Registration/Login may be required to access all resource tools.] Identify when estimation is appropriate and estimate to solve word problems.
Khan Academy
Khan Academy: 2 Step Word Problems
Solve two-step word problems with addition, subtraction, multiplication, and division. Some questions include estimation. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive...
Khan Academy
Khan Academy: Multi Step Word Problems With Whole Numbers
Solve multi-step word problems, including estimation. Select the equation that can be used to solve a word problem. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: 2 Step Word Problems
Solve two-step word problems with addition, subtraction, multiplication, and division. Some questions include estimation.
AAA Math
Aaa Math: Front End Estimation
Front-end estimation is explained and demonstrated with an online game at this AAA Math lesson.