Cardinal Numbers Teacher Resources

Young counters respond to three prompts and demonstrate their understanding of ordinal numbers by identifying the first, middle, and last kitten held in a young girl’s sack. After counting the total number of little, furry felines,...

Budding mathematicians explore the concept of skip counting. They practice skip counting as they use it to determine the number of wheels that come to school at 3 different times throughout the day. They also create a data graph to show...

Students write directions from a starting point to a destination using a map and ads from the Yellow Pages. They define the following terms using total body response or through the use of random objects: "right-hand," "left-hand,"...

Young scholars discuss the different ways we use numbers in everyday life. They walk around the classroom for 5 to 10 minutes, students are asked to point out examples of numbers they find in the room. Young scholars are asked to image...

Spanish learners can start with uno, dos, y tres and move all the way up into the millions and trillions on their way to learning all the numbers. The webpage includes information on cardinal numbers, ordinal numbers, fractions, and...

Explore fractions with upper graders. They will discover how to show fractions by shading the correct amount shown in a picture (giving them the idea behind part to whole). They also play multiple fraction games using dice, matching...

Kindergarteners practice basic addition and subtraction. In this math lesson, students sing a song about pigs on a farm to help them understand the concept of adding and subtracting things together. Some excellent extension activities...

In this algebra activity, 9th graders define rational and irrational numbers and answer questions about properties of real numbers. There are 38 questions on this test.

In this fractions worksheet, students write a set of 9 given fractions in words. Answers and hints are available on-line; a reference web site for additional resources is given.

In this ordinal numbers activity, students color the ordinal numbers in people and write the ordinal number for different one and two digit numbers. Students complete 10 problems.

In this ordinal numbers worksheet, students write the ordinal numbers for each number written. Students complete this for numbers 1 - 10.

In this cardinality worksheet, students identify the cardinality of a finite set. This one-page worksheet contains eight problems.

In this reading numbers activity, students say a series of varying numbers. Students practice saying ordinal numbers, time of the day, dates of the year, fractions, and prices. Students also write numbers for their address, birthday,...

Students practice simple addition and subtraction. They identify relationships among whole numbers.

Definition of a cardinal number. Click "here's more" to learn more about cardinal, ordinal and nominal numbers.

The University of St. Andrews offers a wonderful introduction to set theory that makes the topic interesting and understandable. Includes numerous links to related philosophers, mathematicians, and topics.

This site is a lesson on the cardinal numbers 1-10 with an explanation of how to change the number one to match the nouns it modifies. A quiz follows the lesson to test the student's comprehension of these cardinal numbers.

This site is a lesson on the cardinal numbers 31-1000 with an explanation of how to change the hundreds to match the nouns they modify.A quiz follows the lesson to test the student's comprehension of these cardinal numbers.

This online lesson is on the use of definite articles and numbers with months, seasons, and dates. A quiz follows the lesson to test the student's comprehension of this grammar principle.

Lengthy and detailed, but also quite technical, article explaining the major theorems of Frege's logic. Introduction gives a helpful overview and bibliography is included at end, but anyone without a background in logical notation may...

Identify the number of dots to speed up the kola kart.

A comprehensive guide for learning all about sets with definitions, solved examples, and practice questions.