This number line up activitiy gets students out of their seats and helps reinforce the counting sequence.

This activity is played in pairs and gives students practice reading numbers out loud and tracing them.

This game game supports students in counting forward and can be adjusted to support backward counting.

Practice putting positive and negative numbers in order. For example, -28, 12, -51, and 43. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.

This tutorial reviews complex numbers, notation associated with complex numbers, and the basic operations involving complex numbers. Topics examined are conjugates and moduli, polar form, exponential form, arithmetic of complex numbers, and roots of complex numbers. Class notes, definitions, and examples with detailed solutions are included. The complete set of notes can be downloaded in PDF format.

Peg and Cat are helping the Farmer today, and they have a lot of work to do! Today's activities include welcoming campers, introducing camp, sorting animals, collecting 100 chickens, planting vegetables, and solving some really big problems! Throughout the day, campers will practice counting and sorting. Day 1 materials are part of a five-day camp. A full version of the camp curriculum is available in the "Resources" media gallery in the Peg + Cat Camp collection.

Move and play with these activities from Peg + Cat! From playing hide and seek and imagining pirate stories to dancing like Misty Copeland, you will find a treasure of fun ideas in these five printable activities.

This is a choral counting activity that can be easily adjusted as students learn higher numbers.

Practice questions multiplying various one-digit numbers where students have to determine the product or a factor.

Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.

In the first half of this module, students identify measurable attributes of objects in terms of length, weight, and capacity.  Students learn words such as small, big, short, tall, empty, full, heavy, and light so that they will have the vocabulary needed to describe objects (PK.MD.1).  The comparison of length, weight, and capacity naturally leads to discussions about quantity and number.  In the second half, measurement is connected to quantity as students reason if there are enough, more than, less than, or the same number of objects in a set using matching and counting strategies (PK.CC.5).  Comparing concrete sets leads to comparing quantities and abstract numbers.  Children will also focus on identifying first and last in quantities up to 5 and 10 in different configurations (PK.CC.6).

This simple website has a printable page for each of the numbers one through ten. On this sheet you can practice writing the digit, the word and the word in a sentence using manuscript printing.

Do you need practice learning how to write the expanded form of numbers written in standard form? This concentration game is the web site for you! There is a link to a list of the numbers being used so you can check your answer.

Do you need practice learning how to write the expanded form of numbers written in standard form? This matching game is the web site for you! There is a link to a list of the numbers being used so you can check your answer.

This activity can be played by pairs of students to support writing numbers.

In this number tracing activity students create a rainbow number line. This can be a colorful tool with a personal connection to the student that may be used as a reference. It can serve as a visual and motor reminder when reading and writing numbers because the student went through the tracing motion.

In this video segment from Cyberchase, the CyberSquad learns how to read a thermometer as they try to keep their chocolate sculpture from melting.

Kindergarten teacher Allison Frometa uses Peg + Cat games to demonstrate and discuss how she provides differentiated instruction to meet the needs of all students. [3:16]

Abby is doing her fairy exercises. She's flapping her wings and counting to the number four, but she gets distracted when Elmo arrives banging on his drum. The sound of the drum makes her lose track of her counting, but Elmo needs to practice drumming so he can get better. They decide to compromise! [2:33]

Students enter the missing number in a consecutive sequence of three integers. Score is kept.