Houghton Mifflin Harcourt
Challenge: Parentheses, Please!
Given a string of numbers and math symbols, learners take the challenge to insert parenthesis in the proper places to reach certain solutions. This is a challenge, indeed, an engaging enrichment for those who need a little more math!
Illustrative Mathematics
Mile High
What is the meaning of sea level? This resource helps your class understand the meaning of elevations above, below, and at sea level. Provides for good discussion on using positive and negative numbers to represent quantities in the real...
DK Publishing
Subtracting Decimals
Working with decimals or money math? Give your class some practice with subtraction and place value. After solving 18 subtraction problems with decimals and money units, fourth graders work on two word problems. A great homework...
K-5 Math Teaching Resources
Ten Frame
Engage young mathematicians in building their number sense with this set of ten frame printables. Whether you're teaching pupils how to count, add, or subtract, these tools offer children tremendous support with...
PHET
Make a Ten
Rate the resource as a perfect 10. Pupils use an interactive to help add and subtract numbers. They first explore how to express whole numbers using hundreds, tens, and ones, then explore how to add whole numbers by combining to make...
American Chemical Society
What is Density?
Density: the reason a giant pumpkin will float, but a tiny cranberry won't. Lesson begins with a demonstration of two of the same-sized cubes having different densities. Then pupils take eight cubes, each of the same size, and have to...
Council for Economic Education
Satisfaction Please! (Part 2)
Simply understanding consumer rights may not help people solve their problems. Understanding who to turn to becomes key in many different scenarios. Teach the value of various organizations that fight for consumer rights through...
Royal Society of Chemistry
Acids and Bases—Microscale Chemistry
Here's proof that small-scale labs lead to big-time learning. Introduce acid-base interactions to middle school scientists through a microscale chemistry lab. Pupils combine a variety of solutions and use indicators to obtain approximate...
Curated OER
Comparing and Ordering Fractions, Mixed Numbers, and Decimals
Students practice comparing and ordering fractions, mixed numbers, and decimals. In this fractions, mixed numbers, and decimals lesson, students examine a decimal place value chart compared to a whole number place value chart. They...
Alabama Learning Exchange
Are Your Numbers Round?
Elementary schoolers investigate how to round numbers to the nearest tenth. In this number sense lesson, learners view a video clip on the Internet to practice rounding numbers. They use place value charts to help aid in the rounding...
Curated OER
Three-Digit Addition
Students work with hundreds place value, create and manipulate three-digit addition problems, and add three-digit numbers.
Curated OER
Introducing Recycling
Students study environmental issues of excess garbage and learn about recycling. For this recycling lesson, students discuss recycling and read a story about too much garbage. Students write a persuasive essay about the importance of...
Curated OER
Growing in Character
Students explore how to build their character by respecting and appreciating various cultures. In this character education activity, students read the book Seedfolks and answer questions based on the character's cultural backgrounds....
Curated OER
Which Number is Greater?
Students draw pictures of two digit numbers to identify the greater value. In this math lesson, students plot two digit numbers on a number line and identify the greatest or lesser value. Students use the greater than and less than...
Curated OER
China: Dim Sum: K-1 Numeral Recognition Lesson
Students practice counting from one to twenty, identify numerals, write numerals one through twenty and match numerals to object.
Curated OER
With Liberty & Top Soil for All
Middle schoolers compare the basic needs of plants to the basic needs of democracy. In this democracy comparison lesson, students complete a worksheet on what happens to a plant that's not nourished. Middle schoolers draw a correlation...
Curated OER
Coin Motion
Students recognize coins and their values and count coin groups. They play a game where when music is turned on they skip, hop, jog and when it is turned off, they go to a spot in the room marked with the same coin or value as is in...
Curated OER
What Is an American?
Students explore different backgrounds of Americans. In this lesson, students discuss how people in the United States may come from a different background, yet have similar values and beliefs. After the class discussion,...
Curated OER
All Aboard The Campaign Train!
Students explore campaign politics. In this political campaign instructional activity, students investigate multimedia sources in order to examine the structure of political parties and platforms from previous presidential elections....
Curated OER
Donkeys and Elephants and Voters, Oh My!
Learners celebrate party politics. In this American politics lesson, students discover what the 2 main political parties in the country are and discuss their functions. Learners then participate in a classroom simulation that requires...
Curated OER
Regrouping With Remediation
Fourth graders complete multiplication, addition, and subtraction problems that all contain regrouping. For this regrouping lesson plan, 4th graders complete worksheets not provided.
Curated OER
Comparing and Ordering Greater Numbers
Students compare and order greater numbers. In this place value lesson plan, students use a place-value chart to identify which set of numbers has the greatest value.
Curated OER
And the Number Is (Second Grade)
Second graders create Mystery Numbers. They give the class clues about the name, value, and multiples of the digits which make up the number.
Curated OER
Changing Decimals to Percents
In this online interactive learning exercise, 5th graders change decimals to percents. They read a short explanation of the process then convert 12 decimal expressions to percent format with immediate online feedback.