Texas Instruments
Complex Numbers: Plotting and Polar Form
Explore the concept of, and use the Ti-Nspire to, convert complex numbers into polar form. Then practice graphing complex numbers in the polar coordinate plane.
Curated OER
Telling Time, Part 2
Compare time on an analog clock and a digital clock with a learning exercise that prompts third graders to write the given times into both clocks. An example at the top of the page demonstrates how to write the time for both clocks. A...
Curated OER
Complex Numbers
The class practices, on paper and/or on a TI graphing calculator the concepts of how to add, multiply, divide and subtract complex numbers using the correct property.
Curated OER
Put The Numbers into Order
This presentation should provide good practice for youngsters who are just learning how to count larger numbers, and how to use a number line. In it, learners are given sets of four numbers. They use their computer mouse to click on the...
Illustrative Mathematics
Numbers in a Multiplication Table
Identifying patterns is a crucial skill for all mathematicians, young and old. Explore the multiplication table with your class, using patterns and symmetry to teach about square numbers, prime numbers, and the commutative and identity...
Curated OER
Factors of Numbers from 31 to 65
Finding factors is an integral aspect of multiplication. Although there are two examples here, they don't illustrate the process so you will still need to model this a few times for scholars. First, mathematicians list the factors for...
Curated OER
Measuring Mixed Numbers
Mixed numbers can be added conceptually, algorithmically, and physically. Have the class visualize mixed numbers by adding fraction bars together. They then discover the algorithmic process that simplifies adding mixed numbers. Finally,...
Curated OER
Plotting Numbers and Test
Sixth graders create a human number line. They determine the correct placement of various numbers ranging from -4 to 4. Additionally, they will determine the placement of numbers written as fractions and/or decimals.
Curated OER
Reviewing Names, Greetings, Numbers
¡Hola! Young learners need to review basic greetings and numbers the first week of school. To introduce learners to each other, have the kids form two circles, one inside the other. The inside circle faces out (so that they're looking at...
Curated OER
Adding Mixed Numbers and Fractions
Once scholars have a grasp on adding fractions, it's time to throw some mixed numbers into the equation! Each of these 14 addition problems has one mixed number and one proper fraction. Skills here include finding a common denominator,...
Curated OER
Time On My Hands
Young learners engage in discussions and activities on telling time, different types of clocks, and how the parts of a clock actually work. The engage in interactive websites, hands-on games, and watch a video on the art of the clock and...
Curated OER
Telling Time
Here's a great way for young time tellers to practice writing reading time words, then writing them out correctly. There are 15 watch faces with the time words above them. Kids write the actual time numbers, with the colon in between...
Curated OER
Telling Time-to the Hour
In this telling time worksheet, learners practice their time-telling skills. Students are given six analog clocks either with the time written in numbers or the hands on the clock. Learners write the time or show it with the hands on the...
Curated OER
Telling the Time
Introduce the concept of time and all its implications. Kids discover facts about minutes, seconds, days, weeks, months, and years. They label the parts of an analog and digital clock then practice telling the time to the quarter hour.
Curated OER
What's the Time? #2
Challenge your class's time-telling skills with fifteen analog clocks, all with blank faces. They write the hands in the correct places, all with times to the nearest five minutes. An easy way to extend this assignment would be a group...
Illustrative Mathematics
Irrational Numbers on the Number Line
There are four irrational numbers that participants need to graph. Pi(π), -(½ x π), and √17 are easy to approximate with common rational numbers. On the other hand, the commentary describing the irrational number 2√2 is not clear. It...
Scholastic
Study Jams! Double-Digit Division
RJ had an awesome basketball season this year! Use division by double-digit numbers to calculate his scoring average in this instructional presentation. Starting with an explanation of the terms dividend, divisor, and quotient, the long...
DK Publishing
Learning 17 and 18 - Write the Numbers
As learners become familiar with counting, it's helpful to use worksheets like this one to focus on just a few numbers at a time. Scholars begin by tracing the numbers 17 and 18, then print each numeral once on their own. Next, they...
Illustrative Mathematics
Making a Clock
Have a fun time teaching children to read analog clocks with this whole-group math activity. Using large sets of the numerals 1-12 and 0, 5, 10...55, the teacher creates a large clock on either the carpet or the white board, explaining...
EngageNY
Trigonometry and Complex Numbers
Complex numbers were first represented on the complex plane, now they are being represented using sine and cosine. Introduce the class to the polar form of a complex number with the 13th part of a 32-part series that defines the argument...
West Contra Costa Unified School District
Talking About Distance, Rate and Time
Connect the tortoise and the hare fable to mathematics. Learners first identify key terms related to distance, rate, and time. They then solve distance/rate/time problems using different representations.
MENSA Education & Research Foundation
Fabulous Fibonacci and His Nifty Numbers
Fibonacci numbers are not only found in the classroom but also in nature. Explore the concept of Fibonacci numbers through a series of lessons designed to gain insight into the mathematical reasoning behind the number pattern, and spark...
CK-12 Foundation
Order Real Numbers: Pie Baking Contest
Time is on your side. Scholars plot three points on number lines with different time units to represent the time it takes three people to bake pies. They determine the fastest baker and the difference in times between the bakers.
Alabama Learning Exchange
Converting Numbers from Base 10 to Binary, Octal, and Hexadecimal
How many different ways can you write the same number? Learners experiment with writing numbers using different bases. They progress from base 10 to base two, eight, and six.