Assessment
Mathematics Assessment Project

Cross Totals

For Students 6th - 8th Standards
Finally, it all adds up. Learners complete a number puzzle in which they investigate the sums of the digits one through nine in a cross pattern. They then try to determine what totals are possible and which ones are...
Lesson Plan
EngageNY

Chance Experiments

For Teachers 7th Standards
Class members are introduced to probability using terms such as impossible, unlikely, likely, and certain. Numbers between zero and one are associated with the descriptions of probability. Pupils find the likelihood of chance experiments...
Worksheet
Curated OER

Math Squares

For Students 5th - 7th
In this math squares instructional activity, students problem solve a variety of equations intersected by rows and columns involving addition, subtraction, division and multiplication equations.
Activity
National Council of Teachers of Mathematics

Taking a Spin

For Teachers 9th - 12th Standards
It does not divide into 360 evenly, so it cannot work. The resource extends pupils' thinking about rotational symmetry. By asking for a figure with a rotational symmetry of a seemingly impossible angle, the activity requires learners to...
Worksheet
Curated OER

Probability Fun

For Students 2nd - 3rd
What are the chances? Probability comes into play in this worksheet as mathematicians examine a circular chart with images, determining the possibility that the "spinner" will land on each of the images. Appropriate for younger...
Assessment
Bowland

Magic Sum Puzzle

For Teachers 6th - 9th
Learners discover the magic in mathematics as they solve numerical puzzles involving magic sums. They then make a conjecture as to why no additional examples are possible based on an analysis of the puzzles.
Worksheet
Curated OER

Possible vs. Impossible

For Students 3rd - 4th
For this critical thinking worksheet, students analyze 6 pictures and decide if the situation is possible or impossible. Students write the correct word on the line.
Worksheet
Curated OER

Triangle Designs

For Students 4th - 6th
In this triangles worksheet, students draw different triangles and write how many sides and angles each one has. Students draw 4 kinds of triangles and have 2 that are impossible to draw.
Lesson Plan
Virginia Department of Education

The Real Meal Deal

For Teachers 7th
Burgers and salads and sodas, oh my! Scholars use a menu to investigate the Fundamental Counting Principle. They create tree diagrams to illustrate the number of possible choices for each given scenario.
Worksheet
Curated OER

Which is Impossible?

For Students 5th - 6th
In this math worksheet, students solve 4 riddles in which 3 out of 4 answers shown could be correct. Students mark the answer that would be impossible.
Worksheet
Curated OER

Kakuro Puzzle

For Students 1st - 12th
In this math activity, students solve the number puzzle looking for the missing values. The sheet is intended to be a teacher's guide.
Worksheet
Curated OER

Math Maven's Mysteries

For Students 5th - 6th
In these math word problem worksheets, students help solve the mystery about 'The Case of Loud Louie & His Bad Vibes Band.' Students find the probability that Loud Louie will play his accordion using fractions in their lowest terms.
Handout
Charleston School District

Solving Equations with Infinite or No Solutions

For Students 8th - 9th Standards
Where did all the variables go? Scholars learn how to interpret an equation when they eliminate all variables during the solving process. They interpret the solution as infinite solutions or no solutions. 
Lesson Plan
EngageNY

Writing and Evaluating Expressions—Exponents

For Teachers 6th Standards
Bring your young mathematicians into the fold. Scholars conduct an activity folding paper to see the relationship between the number of folds and the number of resulting layers in the 23rd installment of a 36-part module. The results of...
Worksheet
Curated OER

The Dart Problem

For Students 9th - 12th
For this dart problem worksheet, high schoolers write an algorithm to determine the greatest impossible score for a dartboard game.  This one-page worksheet contains 1 problem.  The answer is listed at the end of the problem.
Lesson Plan
Curated OER

Introduction to Probability

For Teachers 11th
For this probability worksheet, 11th graders review basic probability concepts such as chance, probability lines, and possible outcomes. There are 6 problems on here.
Worksheet
Curated OER

Probability Lines

For Students 6th - 8th
In this math worksheet, middle schoolers make estimates to consider the possibility of each event taking place from impossible to likely.
Worksheet
Curated OER

Pumpkin Problems

For Students 4th - 5th
In this math worksheet, learners solve 4 story problems which pertain to Halloween. Students will use all 4 math operations to solve these problems. Two problems are to be solved and two are multiple choice in which learners choose the...
Worksheet
Curated OER

Calculating Total Amount of Homework Done

For Students 8th - 11th
In this exponential growth problem, students calculate the total number of hours of homework done in a thirty-six week period if she does one second of homework the first week and doubles that every week. Students need to take into...
Lesson Plan
Virginia Department of Education

What Are the Chances?

For Teachers 7th
Take a chance on an informative resource. Scholars conduct probability experiments involving coins and number cubes to generate data. Compiling class data helps connect experimental probability to theoretical probability.
Lesson Plan
Illustrative Mathematics

Tossing Cylinders

For Teachers 6th - 8th Standards
Everyone loves a instructional activity that involves throwing things around! To understand probability, your experimenters will predict how different cylinder-shaped objects will land when tossed. When the data is collected, they will...
Activity
2
2
Illustrative Mathematics

Calculating the square root of 2

For Teachers 7th - 10th Standards
Does a calculator give you the exact value of the square root of 2? Here, learners must decide if 1.414236 is equal to the square root of 2. They must also explain why the square root of 2 could never be equal to a terminating decimal....
Activity
Education Development Center

Integer Combinations—Postage Stamps Problem (MS Version)

For Students 4th - 7th Standards
Number patterns can seem mysterious. Help your learners unravel these mysteries as they complete an intriguing task. Through examination, collaborative groups determine that they are able to produce all integers above a certain...
Lesson Plan
Google

Surveys and Estimating Large Quantities

For Teachers 6th - 12th Standards
Looking for an estimation activity a bit more involved than the typical "guess the number of jellybeans in the jar" game? Here, learners use a picture to estimate the number of people at a large event, look for potential problems with...