Scientific American
Life-Sized Drawing
Ocean explorers or mathematicians research the wreck of the CSS H.L. Hunley. They investigate the actual dimensions of the Hunley using math and measuring skills. Afterward, they sketch a large scale drawing of the submarine outdoors on...
Curated OER
House and Holmes: A Guide to Deductive and Inductive Reasoning
Test your pupils' reasoning skills with several activities and a quick mystery to solve. Learners watch and analyze a few video clips that demonstrate reasoning in action, practice deduction with an interactive and collaborative...
Houghton Mifflin Harcourt
Challenge: Code Breaker
Here is a code-breaker multiplication and division game which has learners find the missing letter in equations, then solve and use those letters to "break the code," which actually is the answer to a riddle. Make math fun with a...
Penguin Books
Educator's Guide: The Da Vinci Code by Dan Brown
Dan Brown's The Da Vinci Code is filled with secrets. Help readers find the clues, solve the riddles and puzzles, and unwrap the mysteries with a six-page guide that includes before, during, and after reading discussion questions and...
Math Drills
Thanksgiving Cartesian Art: Pilgrim Hat
What did some Pilgrims wear on top of their heads? Individuals graph sets of ordered pairs, and connect the points to create a mystery Thanksgiving picture.
Math Drills
Thanksgiving Cartesian Art: Mayflower
How did the Pilgrims arrive to America? Middle schoolers graph ordered pairs on a coordinate system, connect the points, and discover a mystery picture—the Mayflower.
Math Drills
Halloween Cartesian Art: Witch Hat
What is the mystery picture? After plotting points on the first quadrant of a Cartesian coordinate system, young mathematicians connect the points to create a Halloween-themed picture.
Math Drills
Thanksgiving Cartesian Art: Pumpkin
Not a Halloween jack-o-lantern, but a Thanksgiving pumpkin! Young mathematicians graph and connect points on a coordinate system to unveil the mystery picture.
Coloring Squared
Snowman—Practice Multiplication
What has a carrot nose, wears a scarf, and is made out of snow? Looks like you'll have to solve the multiplication facts to figure out the colors of each box that makes up this multiplication color-by-number instructional activity.
Curated OER
Investigation - The M & M Mystery
Sixth graders inspect M&M's to complete statistical data. Students interpret percent of colors represented. They convert data from decimals, fractions, and percents. Using the data, 6th graders create a bar graph and a circle graph.
CK-12 Foundation
Solving a Matrix Equation: Mystery Matrix
Solve a matrix in code—color code. Pupils use the interactive resource to set up the matrix equation and its solution path. Scholars use the created solution path to determine the entries of the 2 X 2 solution.
CK-12 Foundation
Monomial Factors of Polynomials: Mystery Boxes
Shortcut the work in finding total volumes. Pupils determine a polynomial expression that would represent the combined volume of three boxes. Each box has the same height, and the scholars rewrite the expression by factoring out the...
CK-12 Foundation
Venn Diagrams: T-Shirt Mystery
Sorting your t-shirts is easy with Venn diagrams. Individuals use a drag and drop interactive to classify shapes on t-shirts into Venn diagrams. A set of challenge questions tests whether the classification is correct.
Curated OER
Mystery Spinners
Take a spin with probability. Given a set of clues about the probability of events on a spinner, groups create their own device to match the clues. Using a jigsaw strategy, groups share their spinners and strategies with other...
Curated OER
Halloween Mystery Math #3
In this 3 digit addition review activity, learners celebrate Halloween as they solve 19 addition problems and decode the holiday message with their answers.
Curated OER
Fractions IV - Equivalent Fractions by Monica Yuskaitis
Comparing equivalent fractions is one of the most difficult math concepts to teach to youngsters. How can numbers that look so different actually represent the same thing? This presentation takes a lot of the mystery out of equivalent...
Curated OER
Mystery Operations: Math, Patterns, Logic
In this activity the computer/teacher makes up a mystery operation, and you have to figure out what the operation is. You give the computer/teacher two numbers to calculate, and it tells you the answer. This is your first piece of...
Curated OER
Mystery Code
In this fractions secret code worksheet, students solve 9 problems that require them to add and subtract using fractions. Students use their answers to decode a mystery message.
Curated OER
Valentine's Day Chocolates Mystery: Sums to 198 (A)
For some Valentine's Day math fun, students solve a puzzle to find how many chocolates are in the candy box. Students add two digit numbers to other two digit numbers, and each answer over 98 represents a candy in the Valentine's candy box.
Curated OER
You've Got My Number challenge
In this finding the number word problem worksheet, students use the clues one more is and ten more is to discover the mystery number. Students solve eight problems.
Curated OER
Holiday Math Mystery
In this Christmas math worksheet, students fill in each tree with the missing number to complete the addition problems. Students then use the missing numbers to find the secret message about Christmas.
Curated OER
Mystery Boxes
In this math learning exercise, students solve the problems that use the operation of addition. They fill in the missing addends or sums as needed.
Curated OER
Using Bar Graphs
What's your favorite pizza topping? Scholars analyze two bar graphs, one depicting a math club's favorite pizza toppings and the other ice cream sales per flavor. As they examine the graphs, learners answer a few comprehension questions....
Math Solutions
Race to 20
And they're off! Working in pairs, young mathematicians roll dice to see who can fill in their double ten-frames first. When students finally fill in their arrays, they create addition number sentences that represent their rolls, helping...
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