Worksheet
Curated OER

Math Maven's Mysteries: The Case of the Incredible Shrinking Garden

For Students 7th
In these math word problem worksheets, 7th graders help solve the mystery about 'The Case of the Incredible Shrinking Garden.' Students find the new length and width measurements of the shrunken garden using the area of rectangle.
Worksheet
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Odd and Even Numbers

For Students 2nd - 3rd
In this math worksheet, students examine 2 number grids. In one puzzle, kids color only the odd numbers. In the other, students color the even numbers. There will be a mystery message or letter in each.
Worksheet
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Mystery Cards

For Students 4th - 6th
In this algebra worksheet, students evaluate a set of 9 cards, each of which has one letter on it. They then use the 9 clues to determine which number is on the back of each card. For example, B x B = 25 and B + B = 10. Students can...
Lesson Plan
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Decimals for Lower Elementary

For Teachers 3rd - 5th
Learners investigate decimal operations, including addition and subtraction. They participate in interactive games, story problems, and math mysteries.
Worksheet
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Valentine's Day Chocolates Mystery: Sums to 198 (B)

For Students 2nd - 3rd
Students add double digit numbers to other two digit numbers. Each answer over 97 stands for a chocolate candy in the box. Students solve the problems to determine the number of chocolates in the candy box.
Worksheet
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Valentine's Day Chocolates Mystery: Sums to 1998 (A)

For Students 2nd - 3rd
This learning exercise prompts students to add three digit to three digit numbers. They are challenged to find the number of chocolates in a candy box by counting the answers above 999.
Worksheet
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Valentine's Day Chocolates Mystery--Sums to 198 (E)

For Students 3rd - 5th
In this Valentine's Day chocolates mystery with sums to 198 worksheet, students problem solve and calculate the answers to twenty-seven addition equations.
Lesson Plan
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A Prime Investigation wtih 7, 11, and 13

For Teachers 9th
Ninth graders investigate divisibility rules.  For this middle school mathematics/Algebra I lesson, 9th graders explore the divisibility rules of 7, 11, and 13.  Students examine certain six-digit numbers that are divisible by...
Lesson Plan
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Lesson 3: Graphing Ordered Pairs on a Coordinate Plane

For Teachers 8th - 12th
Students study how to graph ordered pairs on a coordinate plane. After a teacher demonstration, students work together to complete problems. They explain and share their answers. As an activity, they solve a mystery story about the...
Lesson Plan
Alabama Learning Exchange

Number Clues

For Teachers 2nd - 4th Standards
Students practice problem solving. In this number identification lesson plan, students practice identifying numbers based on clues or characteristics given. They also work in groups to identify the clues for given numbers.
Worksheet
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Multiplication and Division Equations

For Students 4th - 5th
These multiplication and division sentences are missing numbers, and it's not the typical product and quotient mystery here. Scholars solve these problems by filling in dividends and factors, as well. There are five equations and...
Lesson Plan
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Mystery Stars: Estimating Whole Numbers Using Fractions Shown on Sectors of a Circle

For Teachers 4th - 5th
In this set of fraction worksheets, students cut out 6 pages of circles that show fractions with stars covering different sections of circles. They show one section of the circle in order to estimate the whole number of stars by looking...
Lesson Plan
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Detective Digis and the Computer Caper

For Teachers 6th - 9th
Mathematicians participate in an hands-on activity to investigate the binary number system and write messages in binary code and have classmates decipher the messages. A said video on the topic does not seem to be available, but the...
Worksheet
Curated OER

Three digit numbers

For Students 1st - 2nd
In this three digit numbers instructional activity, students answer multiple choice questions about three digit numbers in standard form, word form, place value, and more. Students complete 10 questions.
Lesson Plan
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Mystery Words - Part Two - School Terms

For Teachers 3rd - 4th
Learners increase their vocabularies with the mystery words activity. In this vocabulary lesson, students solve the mystery words using clues.
Lesson Plan
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Decimal Calculator Numbers

For Teachers 4th
Fourth graders practice working out a hidden number on a calculator by utilizing number sequence in the advanced multiplicative stage seven. They enter a number into their calculator and push the division sign once and go from there.
Lesson Plan
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Adventure Into The World of Shapes

For Teachers K - 4th
Students view Elmer Holtzrichter's work Mystery Planet and discuss basic shapes and patterns. They create their own collage. and discuss the patterning they created. Students demonstrate how this pattern would sound with clapping and...
Lesson Plan
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Secret Agent Stan

For Teachers 3rd - 8th
Students answer time and money questions to solve a mystery. In this time and money lesson, students act as detectives to find Secret Agent Stan's identification number by answering questions from his logbook involving elapsed time and...
Lesson Plan
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Discovering the Magical Pi

For Teachers 6th - 8th
Students calculate pi using data on the circumference and diameter of various objects. They define key vocabulary terms, measure the circumference and diameter of various circular objects, organize the data on a table or chart, and...
Lesson Plan
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Building Numbers

For Teachers 5th
Fifth graders use place value clues to find a given number. In this place value instructional activity, 5th graders work with the MathKeys program using place value clues and base-ten blocks to build a number and determine its value.
Worksheet
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Math Maven's Mysteries

For Students 3rd - 4th
For this logic worksheet, students read a short story about a hidden baseball bat in a large stadium. Students read the clues about the location of the bat. Students determine where in the stadium seats the bat is located.
Lesson Plan
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The Mystery of the Accelerating Race Car

For Teachers 9th - 12th
Learners define and discuss acceleration and how to compute acceleration. They observe examples of computing acceleration, and complete a worksheet using the correct formula.
Worksheet
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Math Maven's Mysteries

For Students 4th - 5th
In these story problem worksheets, learners read the story problem 'The Case of the Hatcher Hotel Heist' and use the information within the story to help them solve the problem. Students use addition and subtraction to find the next room...
Worksheet
Curated OER

Money Riddle

For Students 3rd - 4th
In this addition worksheet, students solve 11 problems in which a mystery number is added to another two digit number with the sum always being 100. After completing the problems a mystery message will be revealed.