PBS
Working with Common Denominators: Assessments
Now that the practice is over, see if young mathematicians can utilize their new skills on finding common denominators and adding fractions. The assessment contains one map challenge and follows with skills practice.
Illustrative Mathematics
Reasoning about Multiplication and Division and Place Value, Part 2
The learner puts reasoning and estimation to work. The directions are to place a decimal in the answer to make the equation true. Pupils are to look at the two problems, one multiplication and one division, and estimate an answer. No...
Curated OER
Two-Digit Subtraction With and Without Regrouping
Second graders subtract two-digit numbers. In this mathematics lesson, 2nd graders subtract both with and without regrouping. Students use manipulatives and place value mats to assist in problem solving.
Fluence Learning
Divide Shapes
Let's partition rectangles into equal parts. Assess learners on their ability to divide shapes into equal parts, and their ability to explain their thinking.
Curated OER
Introduction to Exponents
Problem solve using exponents. Pupils read One Grain of Rice: A Mathematical Folktale and write powers to represent amounts from the story.They compare actual solutions to their predictions and play a game to practice using...
Curated OER
The Battle for Ultimate Power
Students gain an understanding of how the powers of 10 and scientific notation can be used to represent the scale of things in the universe. They relate the number of stars in the universe to the number of grains of sand on Earth's beaches.
Illustrative Mathematics
Building toward fluency
Here is a great learning task that focuses on the development of areas in computational fluency including strategies in mental math. Young learners are guided through a list of addition expressions that help them visually understand the...
Curated OER
Compare Numbers to 100,000 (P)
Fourth and fifth graders write the greater than, less than or equal to symbol in a box between a pair of numbers.
Curated OER
Comparing Fractions
Young mathematicians compare two fractions with like denominators and then move to the next level to compare fractions with unlike denominators. They will first try to use mental math to make educated guesses. There are a few guidelines...
Curated OER
Missing Addends
Where are all the addends? Addition novices solve 36 equations by filling in the single-digit addend to achieve the given sum. They reference several examples, each of which include object sets to help learners visualize the...
T. Smith Publishing
Counting Tools
As the title states, the activity required to complete this worksheet is counting tools! Saws, screwdrivers, and wrenches are depicted for children to count. They simply write the number of items on a line to the right of each group....
Curated OER
Repeated Addition as Multiplication
While the first slide doesn't make much sense, the rest of the show is great. Kids are introduced to repeated addition as multiplication. They see images of equal groups of objects, each group is represented numerically by an addition...
Curated OER
How Many Raisins?
Students study the concept of addition. They create verbal number stories with numbers from one to five. They draw a slice of bread with a line down the middle and cut the bread shapes out of a "slice of bread" and a handful of raisins,...
Ohio Department of Education
Writing and Comparing Numbers in Scientific Notation-Grade Eight
Explore scientific notation in this mathematics lesson. Young mathematicians explore multiple representations of large number in scientific notation through the use of models, visual representation and expanded form. The lesson provided...
Kentucky Educational Television
The Road to Proportional Reasoning
Just how big would it really be? Young mathematicians determine if different toys are proportional and if their scale is accurate. They solve problems relating scale along with volume and surface area using manipulatives. The...
Curated OER
Developing Strategies for Addition and Subtraction
Primary graders develop strategies to assist them with addition and subtraction. They discover number combinations and numerical facts which enable them to add and subtract more effectively. Young scholars use these techniques to...
Curated OER
Divisibility Rules Using Scientific Calculators
Young learners apply divisibility rules to determine if a number is a factor of another number. They discuss what numbers are factors of another number and identify patterns using divisibility rules.
National Security Agency
Are You Game? A Lesson Connecting Fractions and Probability
Exactly how fair are the board games children grow up playing? Young mathematicians investigate this questions as they work their way through this five-lesson series on basic probability.
Curated OER
Touch
Young scholars discover how sense of touch helps us explore our world by feeling it and learning the size, texture and shape of things.
Curated OER
Total Cost and Unit Cost
In this unit rate instructional activity, students solve 6 problems in which the unit rate in a consumer math story problem is calculated. There are no examples or instructions.
Curated OER
A Plane Old Time
Fourth graders become familiar with a chart and use the information to create a flight plan. In this flight plan lesson, 4th graders access background knowledge of the role of flight controllers and the number concepts they...
Curated OER
Relationship Between Addition and Subtraction
Students are taught how to add and subtract and use number sense to solve basic math problems. In this addition and subtraction lesson, students are being taught using theories from different philosophers in education. They are given a...
Pennsylvania Department of Education
Fraction Strips
Students explore number sense by participating in a class fraction game. In this number value instructional activity, students utilize strips of paper with fractions written on them and conduct a trivia game in which teams challenge each...
Curated OER
Make a Match
Second graders examine the relationship between addition and subtraction. In this number sense lesson, 2nd graders practice their computation skills and use various strategies (including manipulatives and calculators) to...