This short video and interactive assessment activity is designed to teach fourth graders about adding, subtracting, and multiplying with parentheses.
This problem simply asks students to add the tenths and hundredths together.
This lesson demonstrates how to add vectors using the parallelogram rule. It is 2 of 2 in the series titled "Adding Vectors Using the Parallelogram Rule." [9:01]
Learn how to add vectors using the tail-to-tip method. [6:00]
This lesson demonstrates how to add vectors using the tail-to-tip method. It is 2 of 2 in the series titled "Adding Vectors Using the Tail-to-Tip Method." [6:52]
This short video and interactive assessment activity is designed to teach fourth graders about adding and subtracting.
Students use estimates and work on strategies for adding and subtracting decimals.
This short video and interactive assessment activity is designed to teach fourth graders about adding and subtracting money with pictures in columns.
This short video and interactive assessment activity is designed to teach fourth graders about adding and subtracting terms (numbers to 100).
Demonstrates how to use a number line to visualize and solve addition and subtraction word problems. [4:27]
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.
Demonstrates how to add 35 to 27 using drawings of base ten cubes to represent 1s and 10s. [4:36]
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.
The purpose of this task is to study some patterns in a small addition table. Each pattern identified persists for a larger table and if more time is available for this activity students should be encouraged to explore these patterns in larger tables.
This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important aspects of the task and its potential use.
Video tutorial demonstrates how to solve an addition word problem with numbers less than 100. [3:30]
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.
Learn how to solve addition and subtraction word problems using gorillas and cookies as examples. [5:31]
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.
Students extend their computational work to include fractions and decimals, adding and subtracting numbers in those forms in this unit before moving to multiplication and division in subsequent units.
Given a 2-digit addition or subtraction problem, video demonstrates how to decide which number line matches up with it. [1:56]
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.
Use a visual model to add fractions with unlike denominators. This video focuses on using an equivalent fractions chart to compare fractions and find the correct sum.
Air pressure is pushing on us all the time although we do not usually notice it. In this activity, students learn about the units of pressure and get a sense of just how much air pressure is pushing on them.
The problem statement describes a changing algae population as reported by the Maryland Department of Natural Resources. In part (a), students are expected to build an exponential function modeling algae concentration from the description given of the relationship between concentrations in cells/ml and days of rapid growth (F-LE.2).