Lesson Plan
Illustrative Mathematics

Rounding to 50 or 500

For Teachers 3rd - 4th Standards
In a six-problem learning activity, children are guided to solve word problems that involve rounding to the nearest ten and nearest hundred. A commentary and answer key provide different approaches that learners may take in solving the...
Lesson Plan
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Illustrative Mathematics

Equivalent fractions approach to non-repeating decimals

For Teachers 6th - 8th Standards
Trying to get your class to think of decimals as fractions and vice versa can lead to interesting discussions. After all, we can usually understand quickly that 1/4 is .25 but why is 1/7 not so easy to convert? This activity looks...
Activity
Curated OER

K-5 Mathematics Module: Number and Number Sense

For Students K - 5th Standards
Reinforce number sense with a collection of math lessons for kindergarteners through fifth graders. Young mathematicians take part in hands-on activities, learning games, and complete skills-based worksheets to enhance proficiency...
Activity
Bowland

You Reckon?

For Teachers 6th - 9th
Sometimes simple is just better. A set of activities teaches young mathematicians about using plausible estimation to solve problems. They break problems down to simpler problems, use rounding and estimation strategies, and consider...
Activity
Pedago Net

Acing Math

For Teachers 2nd - 8th
Deal me in! Elementary and middle school classes will love this selection of math games, all involving a deck of cards. From fractions to exponents to rounding up and down, the games cover such a variety of skills that your classroom...
Lesson Plan
Illustrative Mathematics

How Many Cells Are in the Human Body?

For Teachers 9th - 11th Standards
Investigating the large numbers of science is the task in a simple but deep activity. Given a one-sentence problem set-up and some basic assumptions, the class sets off on an open-ended investigation that really gives some...
Activity
NumberNut

Number Nut: Rounding Numbers to the Nearest Ten Memory Challenge

For Students 1st - 2nd
Play this online memory game by flipping cards and selecting pairs that match by rounding one of the numbers to the nearest ten. Eliminate pairs and practice your rounding skills.
Activity
K-5 Math Teaching Resources

K 5 Math Teaching Resources: Round to the Nearest Ten [Pdf]

For Students 2nd - 4th Standards
Students will play a game using a deck of cards to further understanding of rounding to ten.
Activity
History is Fun

Jan Brett: Seashell Rounding Activity

For Students 1st - 2nd
Sharpen your rounding skills with this interactive game based on Jan Brett's, Comet's Nine Lives. Round correctly to the nearest ten and earn a sand dollar for each correct response. Immediate feedback provided.
Activity
Beacon Learning Center

Beacon Learning Center: Round About

For Students 1st - 3rd Standards
Students learn about estimation using a number line and rounding rules through this interactive web lesson.