Curated OER
Finding the Basal Area of a Forest Plot to Determine Stocking Levels
Learners use graphs and plots to measure the basal area and stocking levels. In this graphing instructional activity students work in the field the use their data to help them complete a lab activity.
Curated OER
Maintaining Strong Fisheries
Learners play a game about the life cycle of a blue crab in order to witness the causes of changes in the crab population and discuss what a resource manager could do to keep a stable crab population. Students then create a game titled...
Curated OER
Add and Subtract to 100
Looking for practice problems to keep your math experts in top shape? Here are 10 problems in both addition and subtraction, all involving only double-digit numbers. Some of these involve borrowing and regrouping, so be sure your kids...
Curated OER
Concealed Handguns
Should adults be allowed to carry concealed handguns? Pupils use the website to research the topic thoroughly and weigh the pros and cons. They read background information on gun control and learn about the main arguments surrounding the...
Math Worksheets Land
Add and Subtract within 1000 - Step-by-Step Lesson
Three-digit numbers are the name of the game here! Scholars convert 456 to expanded form, then complete one addition and one subtraction problem. The equations are written vertically, and the addends produce a four-digit number. There is...
Howard Hughes Medical Institute
Population Dynamics
Will human population growth always be exponential, or will we find a limiting factor we can't avoid? Young scientists learn about both exponential and logistic growth models in various animal populations. They use case studies to...
Integrated Physics and Chemistry
Law of Conservation of Matter
Does mass change during a chemical reaction? Demonstrate the Law of Conservation of Matter while encouraging class members to be creative with a two-part lesson. First, learners use Alka-Seltzer® tablets and water to demonstrate the...
Curated OER
Simple Addition Without Carrying 2
In this addition practice learning exercise, students practice their computation skills as they solve 40 problems that require them to add 2-digit numbers to 1-digit numbers.
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Doubling Two Digits (No Carrying)
In this addition practice learning exercise, learners hone their math skills as they solve 40 problems that require them to add 2-digit numbers that double themselves.
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Simple Addition Without Carrying 3
In this addition practice instructional activity, students practice their computation skills as they solve 40 problems that require them to add 2-digit numbers to 1-digit numbers.
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Addition Without Carrying
In this addition practice worksheet, students practice their computation skills as they solve 40 problems that require them to add 2-digit numbers to 2-digit numbers.
Curated OER
Addition Without Carrying
In this addition practice worksheet, students practice their computation skills as they solve 40 problems that require them to add 2-digit numbers to 2-digit numbers.
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Addition with Carrying
In this addition worksheet, students add one digit numbers to two digit numbers with regrouping. Students complete 30 problems total.
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Addition Without Carrying
In this addition worksheet, students add one digit and three digit numbers together without regrouping. Students complete 30 problems total.
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Addition with Carrying
In this addition with regrouping worksheet, students add three digit numbers and one digit numbers together with regrouping. Students complete 30 problems.
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Investigating Space Requirement of Seed Plants
Students use scientific methods to investigate the effects of overpopulation of seed plants on growth in a limited living space. Students relate seed plant population findings to that of other organisms.
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Decimal Multiplication
In this mathematics worksheet, students solve a number of problems by multiplying decimals to the hundredths and thousandths place. There are 30 problems to solve on the sheet.
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Dividing Decimals by 100 (A)
In this mathematics worksheet, students solve a number of problems by dividing each decimal by 100. There are 45 problems to solve on the sheet.
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Two-Digit by Two-Digit Tenths (A)
In this mathematics worksheet, students solve a number of problems by multiplying a two-digit number by a two-digit decimal to the tenths place. There are 49 problems to solve on the sheet.
Curated OER
Pot of Gold Addition
In this money math worksheet, 2nd graders solve each addition problem and write the sum on the pot of gold pictured for each. They add money together to get their total amount for each problem.
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Addition Computation
For this addition worksheet, students solve 16 problems in which two digit numbers are added, with and without regrouping. Problems are in a vertical format.
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Adding Greater Numbers
In this adding greater numbers activity, students solve 13 problems in which four numbers are added in a column. Most numbers are four or five digits; students will need to regroup more than once.
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Add Three Numbers
In this column addition worksheet, students solve 11 problems in which three two-digit numbers are added. There will be regrouping on this page.
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Regroup Ones
In this addition worksheet, students solve 17 problems in which three digit numbers are added with regrouping. There is one story problem on the page.