National Security Agency
Classifying Triangles
Building on young mathematicians' prior knowledge of three-sided shapes, this activity series explores the defining characteristics of different types of triangles. Starting with a shared reading of the children's book The Greedy...
K-5 Math Teaching Resources
Adding Mixed Numbers (Unlike Denominators)
Mix things things up in your elementary math class with a series of problem-solving exercises. Presented with a series of mixed number word problems, young mathematicians are asked to solve them by using either visual fraction models or...
David Pleacher
Candy Math Fun
Few things can motivate children to learn like the promise of a sweet and tasty treat. Given a bag of M&M®s, Skittles®, or other colorful candy, students first predict the contents of the bag before counting the pieces, creating a...
Curated OER
Practice: Word Problems
Congratulations, you've just hit the word problem jackpot! Covering an incredible range of topics from integers and fractions, to percents, geometry, and much more, this collection of worksheets will keep young mathematicians busy...
Noyce Foundation
Through the Grapevine
Teach statistics by analyzing raisins. A thorough activity provides lesson resources for five levels to include all grades. Younger pupils work on counting and estimation, mid-level learners build on their understanding of the measures...
Curated OER
Math Cross--Puzzle #12
In this measurement, money and time instructional activity, students fill in a crossword puzzle as they solve twenty-eight math problems involving inches/ounces, bills/coins through addition, subtraction and multiplication problems.
Curated OER
Math Cross-- Puzzle #33
For this math puzzle worksheet, students solve 28 problems and insert the answers into a puzzle grid. The problems include all 4 math operations, telling time, measurement, word problems, rounding, money, order of operations and math...
Curated OER
Math Cross--Puzzle #30
In this money, rounding, time and measurement learning exercise, students problem solve twenty-eight math problems or word problems involving addition, subtraction, multiplication and division.
Curated OER
Math Crossword Puzzle #21 - Mixed Math
In this mixed math crossword puzzle worksheet, learners compute the answers to 21 mixed math problems that include measurement, money, multiplication, and division. They write the answers across and down to complete the puzzle.
Curated OER
Recognize Area as Additive - Guided Lesson
Not all area word problems are straightforward. Here are some trickier ones to challenge your beginning geometers. They determine the area of two irregular shapes and one rectangle using given measurements. Remind scholars to use square...
Curated OER
Measure and Draw Angles
Six word problems provide practice for young geometers to review angles, the angle a of straight line, circles, right angles, and others. I like the approach of these questions; they require thinking and explaining, not just computation.
Yummy Math
More Chocolate Candy?
Everyone knows that candy is the best part of any holiday—but which holiday's candy gives you the most bang for your buck? Analyze a chocolate heart, a chocolate bat, and a normal piece of chocolate to decide which piece of candy has the...
Mathematics Assessment Project
Mean, Median, Mode, and Range
What a find! Here is a instructional activity, designed to meet sixth grade math Common Core standards, that focuses on the calculation of different measures of center for the scores from a penalty shoot-out competition. An independent...
Noyce Foundation
Time to Get Clean
It's assessment time! Determine your young mathematicians' understanding of elapsed time with this brief, five-question quiz.
Illustrative Mathematics
Finding an Unknown Angle
Teach your class how to apply their knowledge of geometry as they explore the unknown. In order to find an unknown angle, students must understand that rectangles have four interior right angles, that right angles have 90 degrees, and...
Noyce Foundation
Once Upon a Time
Examine the relationship between time and geometry. A series of five lessons provides a grade-appropriate problem from elementary through high school. Each problem asks learners to compare the movement of the hands on a clock to an angle...
Curated OER
Choose a Graph to Display Data
For this math graphs worksheet, learners write line plot, tally chart, pictograph, or bar graph to tell the best kind of graph to use to answer the six questions.
Curated OER
Rounding Decimals - Alternative Lesson
in this rounding decimals worksheet, students read about the concept, then round decimals to the nearest tenth and hundredth, then find length to nearest centimeter and tenth of a centimeter.
Curated OER
Math Cross Puzzle #35
In this math puzzle worksheet, students solve 24 problems and put the answers in a cross puzzle. The problems include all 4 math operations, rounding, order of operations, word problems, telling time and measurement. Answers will be...
Curated OER
Math Cross Puzzle #34
In this math puzzle learning exercise, students solve 28 problems and insert the answers into a puzzle grid. The problems include all 4 math operations, telling time, measurement, word problems, rounding, money and math patterns. Answers...
Curated OER
Math Cross Puzzle
For this math puzzle worksheet, students solve 25 problems and insert the answers into a puzzle grid. The problems include all 4 math operations, telling time, measurement, word problems, rounding, money and math patterns. Answers will...
Curated OER
Math Cross Puzzle #20
In this math puzzle worksheet, students solve 28 problems and insert the answers into a puzzle grid. The problems include all 4 math operations, telling time, measurement, word problems, rounding, money and math patterns. Answers will be...
Curated OER
Math Cross Puzzle #23
In this math puzzle worksheet, students solve 28 problems and insert the answers into a puzzle grid. The problems include all 4 math operations, telling time, measurement, word problems, rounding, money and math patterns. Answers will be...
Curated OER
Math Cross--Puzzle #9
In this measurement and money worksheet, students fill in a crossword puzzle as they solve twenty-eight addition, subtraction and multiplication math problems involving ounces and inches, money and coins.