Curated OER
Using Counting-on Strategy for Purchasing
Intended for learners with autism and developmental disabilities, this lesson uses the strategy of counting-on to enhance independent shopping skills. Learners will practice counting on to the next dollar value in order to purchase items...
Willow Tree
The Fundamental Counting Principle
How many different outfits can you make with what you have in your closet? The Fundamental Counting Principle can help you find an answer! Learners find totals using the Fundamental Counting Principle with problems that can have...
EngageNY
Counting Problems
Solving these percent problems is a matter of counting. Pupils find percents by counting the number of events that meet the criteria and the total number of possibilities. Participants create the ratio and convert it to a percent to...
Illustrative Mathematics
Counting Dots in Arrays
Mathematical arrays can represent several different math skills, including counting groups, multiplication, and even area. In this specific task, learners are asked to identify the addition equations that are equal to a 3 x 4 array....
EngageNY
Counting Rules—The Fundamental Counting Principle and Permutations
Count the benefits of using the resource. The second installment of a 21-part module focuses on the fundamental counting principle to determine the number of outcomes in a sample space. It formalizes concepts of permutations and...
CK-12 Foundation
Basic Counting Rules: Sandwich Shop
Young mathematicians make a tree diagram of all possibilities for sandwiches using an interactive. They learn how multiplication speeds up the process of finding the number of outcomes.
CK-12 Foundation
Fundamental Counting Principle with and without Repetition: Outfit Combinations
But I have nothing to wear! Using an interactive, individuals create all possible outfits from three shirts, one belt, and two pairs of pants. Answering a set of challenge questions helps them see what they have learned from the experience.
Curated OER
The Counting Principle, Sample Spaces, and Probability
In this statistics and probability instructional activity, students solve problems in which they use the counting principle and/or tree diagrams to determine the number of outcomes of an event or the probability of event occurring. The...
Curated OER
Counting Handout 1: Combinations
In this counting worksheet, students find the number of combinations and permutations of seventeen multi-step problems. Students determine the number of possible social security numbers, telephone numbers, book arrangements, etc., given...
Perkins School for the Blind
Counting in Tactile Journals
This is one of those great ideas I totally love. Youngsters with visual impairments practice counting and left-to -right sequencing by counting out a set number of edible objects from the left and putting them in a bag on the right. They...
Curated OER
Down for the Count?
The New York Times article “Supreme Court, Split 5-4, Halts Florida Count in Blow to Gore” provides the opening to an assessment of the United States Supreme Court decision in the case of the 2000 presidential election. Assuming the...
Curated OER
Fraction Problem Solving Process
Help your charges solve a variety of fraction and skip counting problems using a problem solving process. As a class they work through a fraction problem step-by-step, and discuss a real-life connection to the problem. Students then play...
Balanced Assessment
MasterMind
Knowledge of statistics and probability can increase your advantage when playing games. The activity asks learners to analyze the game of MasterMind to determine the number of possible codes. They also examine different variations of the...
Indiana Science
How Many E’s?
Seventh graders explore random sampling by estimating the number of e's on the newspaper. They explain the possible error sources for this type of sampling, and compare the accuracy of sampling a small and large population. This is a...
Illustrative Mathematics
Counting Overview
Develop automatic, meaningful counting skills with your class by using everyday classroom/school items, objects, and opportunities. Counting skills should be practiced during the year using objects and items they are familiar with and...
Illustrative Mathematics
How Many Leaves on a Tree?
This is great go-to activity for those spring or fall days when the weather beckons your geometry class outside. Learners start with a small tree, devising strategies to accurately estimate the leaf count. They must then tackle the...
Curated OER
Counting with Base - Ten Models
Help your kids develop strategies for counting. In this base-ten lesson, learners use matching cards, base 10 blocks, and dry erase markers and boards to examine the base 10 counting system.
DK Publishing
Counting Caterpillars
These caterpillars each have a number sequence printed on their segmented bodies, but some numbers are missing! Look at the completed caterpillars as an example, asking kids to notice a possible pattern. They should observe that the...
Illustrative Mathematics
How Many Buttons?
Bring the class into the probability by having everyone count buttons on their shirts. Organize the data into the chart provided and chose different possibilities such as "female with one button" or "all middle schoolers with more than...
Illustrative Mathematics
Counting Squares
Challenge young mathematicians' understanding of squares with this geometry puzzle. The task is simple, identify as many squares as possible in a 3x3 array. Allow learners to work independently or in pairs as they search for squares,...
SEN Teacher
Numeracy Fans
Numbers are infinite and so are the possibilities with this custom template to create your own number fans. This resource allows you to choose your start number and the increments between each fan. Each blade holds up to three numbers so...
Curated OER
Subtracting
Help kids visualize subtraction by assigning these sets of objects for them to subtract. They examine an example before completing the seven equations on their own. For each, learners cross out the subtrahend value and count the...
Curated OER
Counting Principle
In this counting principle worksheet, students find the possibility of an event while using the counting principle. They read about this tool to find the total number of combinations.
Curated OER
Counting Principle
In this counting principle worksheet, students examine, analyze and determine how to solve a variety of word problems with the counting principle. Students find out the total number of combinations that exist.