Curated OER
Expert Estimators
A rich and well-designed lesson on estimation is here for you. The lesson utilizes a video; ITV Series: The Eddie Files 'Estimation: Going to the Dogs,' along with many websites. Several fantastic learning activities are...
Prince Edward Island
Fact Learning, Mental Computation, Estimation
Need help with mental math in your classroom? This guide is full of tips, tricks, and examples to help the teacher encourage learners to use their brain instead of a calculator. Practice problems are included with reasons how...
Curated OER
Divisor The Great! (Divide by Two-Digit Divisors)
Manipulatives make learning division easier! Your class will discover the difference between dividing with one- and two-digit divisors, and practice the procedures for each using the standard algorithm. They will use estimation to ensure...
Curated OER
Estimation and Computation
Second graders practice their estimation skills using blocks. In this math lesson, 2nd graders explain how estimating makes addition easier. They complete a worksheet after the lesson to reinforce new learning.
Curated OER
Reasonable Estimates
Help pupils explore estimation. They will make estimates and discuss when you might use an estimate. Then they discuss if their estimates are reasonable.
Curated OER
Number and Operations: Webbing Our Way Through Numbers
Second graders explore estimation and place value. For this place value lesson, 2nd graders estimate and construct numbers while working with spider activities. Students use addition and subtraction to compare estimates. Resources and...
Curated OER
Investigations into Estimations
Students gain the powerful tools of estimation, prediction, and averaging and discover the importance these tools have in daily living.
Curated OER
Puzzling Perimeters
Third graders use estimation, fractions and decimals to determine the perimeter of objects in the classroom. They are given a worksheet with a list of the items on it. The worksheet has columns beside each of the items for estimation and...
Curated OER
Fractions, Decimals, and Percents Got You Down? "Tri" This!
Have your class design their own mathematical study aids. Learners collaborate in groups on the design of tri-fold presentation describing the relationships between mathematical computations. Then, they write a business letter to the...
Curated OER
Solving Problems
Second graders become familiar with need strategies for computation of money problems and estimating sums. In this computation lesson, 2nd graders solve real life problems to understand estimation and money problems.
DataWorks
4th Grade Math: Multi-Step Word Problems
Solving word problems requires reading comprehension and math computation. Through an interactive slideshow presentation, fourth graders observe and follow each step toward solve multiplication and division word problems.
Curated OER
When Close Enough is Good Enough
Students describe the difference between an estimate and a guess. They create reasonable estimates based on observation and hands-on activities. They synthesize estimated based on interaction with online activities.
Curated OER
Rice Math
Sixth graders calculate the amount of rice there will be if the amount is doubled everyday. In this multiplying lesson, 6th graders are given an amount of rice that is grown each day. Students then calculate how much rice there will be...
Curated OER
Alternative Algorithms
Analyze algorithms for computing with rational numbers and develop fluency in their use with your math class. They work individually to solve the problems on the "Alternative Algorithms" sheet. Then, they analyze the appropriateness of...
Curated OER
Numbers Make Sense
Second graders explore number values by completing estimation problems in class. In this place value lesson, 2nd graders identify the use of decimals in numbers and how they relate to fractions or parts of a whole. Students utilize flash...
Curated OER
Models and Algorithms to Solve Multiplication Problems
Students choose the correct strategy to solve multiplication and division. In this algorithm lesson, students use at least two strategies that use properties of operations and estimation. Students also recognize the relationship between...
Virginia Department of Education
Adding and Subtracting Fractions
Your learners will enjoy playing a game as a motivator to learning and remembering the adding and subtracting of fractions.
Curated OER
Measure Mania
Groups of students rotate through five classroom stations to estimate, measure, and record volume, length, weight, mass, and area using both customary and metric measure. They evaluate their data to determine how close their estimates...
Curated OER
La Toteca- A Tropical Paradise
Students collect data on the time of the ferry. In this algebra lesson, students use the data to predict a ferry schedule. They also compute the depth where oxygen would be needed when diving.
Curated OER
Best Guesser
Fifth graders develop strategies for estimating ages, and illustrate results by graphing and interpreting scatter plots to compare x and y coordinates.
Curated OER
Square Roots, Number Classification, Ordering & Graphing
Ninth graders identify numbers as rational or irrational. Using calculators estimation, and factoring methods, 9th graders compute the square root of numbers. They graph numbers in sequential order and round numbers integers to the...
Curated OER
Fractions, Decimals, and Gravity
Students discuss how weight is directly related to gravitational force on a planet. Students then choose Space Traveler as companion and compute how much their guide weighs on various planets, based on each planet's relative surface...
Curated OER
A Method of Front-End Arithmetic
Teach the class how to add using front-end addition. They are given a shopping list and use it to practice adding from the largest place value to the smallest. Computational math and shopping, what fun!
Curated OER
What are the Odds
Students predict the-outcome of an event. In this algebra lesson, students compare and contrast the probability of an event occurring. They calculate the odds of a simple event and make estimation.